Entries |
Document | Title | Date |
20080220337 | BATTERY - There is provided a battery including a positive electrode that includes an active material layer formed on a positive electrode current collector; a negative electrode that includes active material layers formed on first and second principal planes of a negative electrode current collector and the active material layer on the second principal plane has an alloyed region smaller than an alloyed region the active material layer has on the first principal plane between the second principal plane and the current collector; and an electrolyte. | 09-11-2008 |
20080220338 | ELECTRODE CURRENT COLLECTOR AND METHOD FOR PRODUCING THE SAME, ELECTRODE FOR BATTERY AND METHOD FOR PRODUCING THE SAME, AND SECONDARY BATTERY - A current collector forming an electrode for battery is provided. The electrode current collector includes a conductive layer made of copper or a copper alloy. Furthermore, the conductive layer has a plurality of crystallites, the crystallites containing crystallites having a cross-section area of 20 μm | 09-11-2008 |
20080241703 | Nonaqueous electrolyte secondary battery - A nonaqueous electrolyte secondary battery which includes a positive electrode, a negative electrode and a separator stacked and wound in a cylindrical configuration, and which achieves a high energy density and superior cycle performance characteristics. | 10-02-2008 |
20080286657 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is composed of a positive electrode containing a positive electrode active material capable of storing and releasing lithium ion, a negative electrode containing a negative electrode active material capable of storing and releasing lithium ion, and a non-aqueous electrolyte. The negative electrode active material contains a first material of a graphite material and a second material of a complex in which graphite material and silicon or silicon composite are coated with amorphous carbon material, and a cyclic carbonic acid ester derivative having fluoride atom and a sulfur-containing composite having cyclic structure are added to the non-aqueous electrolyte. | 11-20-2008 |
20080305402 | Method for Producing Difluorophosphate, Non-Aqueous Electrolyte for Secondary Cell and Non-Aqueous Electrolyte Secondary Cell - A difluorophosphate effective as an additive for a nonaqueous electrolyte for secondary battery is produced by a simple method from inexpensive common materials. | 12-11-2008 |
20080305403 | Non-Aqueous Electrolyte and Secondary Battery Comprising the Same - Disclosed is a non-aqueous electrolyte comprising: a non-aqueous cyclic solvent; a catalyst for polymerization, which is activated depending on temperature or voltage to induce the polymerization of the non-aqueous cyclic solvent; and an electrolyte salt. Also, a secondary battery comprising the non-aqueous electrolyte is disclosed. The non-aqueous electrolyte does not influence the performance of the battery at the normal operating temperature and voltage of the secondary battery. However, when the battery misoperates due to high temperature or overcharge, the polymerization of the non-aqueous cyclic solvent can occur due to the catalyst for polymerization contained in the non-aqueous electrolyte, at a specific temperature or voltage, to increase the resistance of the electrolyte and reduce the ion conductivity of the electrolyte, thus increasing the safety of the battery. | 12-11-2008 |
20090053613 | Positive Electrode and Non-Aqueous Electrolyte Secondary Battery - A material (hereinafter referred to as “positive electrode material”) including sodium manganate powder as a positive electrode active material, carbon black powder as a conductive agent, and polytetrafluoroethylene as a binder is prepared. The positive electrode material is mixed in an N-methylpyrrolidone solution to produce slurry as a positive electrode mixture. A working electrode is produced by applying the slurry on a positive electrode collector. A negative electrode containing tin or germanium is produced. The non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a non-aqueous solvent produced by mixing ethylenecarbonate and diethyl carbonate. | 02-26-2009 |
20090061326 | CURRENT COLLECTOR, ANODE, AND BATTREY - A battery capable of improving the cycle characteristics is provided. A current collector containing copper (Cu), in which ratio I(200)/I(111) between intensity I (200) of a peak originated in (200) crystal plane of copper obtained by X-ray diffraction and intensity I (111) of a peak originated in (111) crystal plane thereof is in the range from 0.5 to 1.5. | 03-05-2009 |
20090068567 | ANODE FOR SECONDARY BATTERY, METHOD OF MANUFACTURING IT, AND SECONDARY BATTERY - An anode for secondary battery is provided with an anode active material layer containing silicon on an anode current collector. Silicon in the anode active material has an amorphous structure. In a Raman spectrum of silicon having the amorphous structure after an initial charge and discharge, 0.25≦LA/TO and/or 45≦LO/TO is satisfied, where an intensity of a scattering peak occurred in the vicinity of shift position 480 cm | 03-12-2009 |
20090176163 | BATTERY - A battery is provided. The battery includes an electrolytic solution, a positive electrode and a negative electrode. The negative electrode has a negative electrode active material layer containing a carbon material and having a thickness per one face of 70 μm or more and not more than 120 μm. The electrolytic solution contains a solvent containing 15% by mass or more and not more than 30% by mass of a cyclic carbonate represented by the following formula (1): | 07-09-2009 |
20090253048 | NONAQUEOUS ELECTROLYTE SOLUTION, NONAQUEOUS ELECTROLYTE SECONDARY CELL, AND CARBONATE COMPOUNDS - The present invention provides a nonaqueous electrolytic solution which can give excellent cycle characteristics. The nonaqueous electrolytic solution contains a linear carbonate represented by the formula (1): | 10-08-2009 |
20090269677 | ANODE AND SECONDARY BATTERY - A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. The anode has an anode structure on an anode current collector. The anode structure has a structure in which a plurality of anode active material particles having silicon are held by a plurality of metal fibers forming a three-dimensional network structure. Due to the plurality of metal fibers, sufficient conductive paths are obtained among the plurality of anode active material particles. Thus, compared to a general anode in which an active material layer is provided on a current collector made of a metal foil or the like, the current collectivity is improved. | 10-29-2009 |
20090286164 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and an insulating layer formed on a surface of the positive electrode. The positive electrode includes a lithium nickel composite oxide having a layer structure, and the lithium nickel composite oxide is represented by the general formula: Li | 11-19-2009 |
20090291370 | ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte. | 11-26-2009 |
20090291371 | ANODE AND SECONDARY BATTERY INCLUDING THE SAME - A secondary battery having high cycle characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte. In the anode, an anode active material layer containing silicon, carbon, and oxygen as an anode active material is provided on an anode current collector. In the anode active material, a content of carbon is from 0.2 atomic % to 10 atomic % both inclusive, and a content of oxygen is from 0.5 atomic % to 40 atomic % both inclusive. A ratio from 0.1% to 17.29% both inclusive of the silicon contained in the anode active material exists as Si—C bond. | 11-26-2009 |
20090311610 | METHOD FOR PRODUCING ELECTROLYTE SOLUTION FOR LITHIUM ION BATTERY AND LITHIUM ION BATTERY USING SAME - There is provided a method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent; and (b) reacting a reaction product of the step (a) formed in the solvent, with hydrogen fluoride. | 12-17-2009 |
20090311611 | Lithium battery - Disclosed is a lithium battery including a silicon negative electrode, a lithium mixed metal oxide positive electrode, a separator disposed between the negative and positive electrodes to define a reservoir region, an electrolytic solution filled in the reservoir region, and a sealant structure wrapped around the silicon negative electrode, the lithium mixed metal oxide positive electrode, the separator, and the electrolytic solution. The electrolytic solution includes an organic solvent, a lithium salt, and an additive. The additive includes a maleimide compound and vinylene carbonate. The silicon negative electrode of the lithium battery employing the described electrolytic solution has higher cycle efficiency and longer operating lifespan. | 12-17-2009 |
20090325077 | Nonaqueous electrolyte secondary battery - In a nonaqueous electrolyte secondary battery having a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte, as the positive electrode active material or as the negative electrode active material, a mixture containing molybdenum dioxide and lithium titanate in a weight ratio (molybdenum dioxide:lithium titanate) of 90:10 to 50:50 is used. | 12-31-2009 |
20100015532 | NEGATIVE ELECTRODE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - A rolled foil of surface roughened copper as thick as 26 μm for example having a surface formed into an irregular shape with copper precipitated thereon by an electrolytic method is prepared as a negative electrode collector. Tin (Sn) or germanium (Ge) is deposited on the rolled foil described above, so that a negative electrode active material layer is formed. Note that the deposited tin or germanium is amorphous. The arithmetic mean roughness Ra in the surface-roughened rolled foil described above is preferably not less than 0.1 μm nor more than 10 μm. A non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a concentration of 1 mol/l to a non-aqueous solvent produced by mixing ethylene carbonate and diethyl carbonate in the ratio of 50:50 by volume. | 01-21-2010 |
20100015533 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery including: a positive electrode that contains a transition metal oxide capable of absorbing and desorbing lithium ions; a negative electrode that is capable of absorbing and desorbing lithium ions; a porous film that is interposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein at least one selected from inorganic oxide and polyamide is contained in the porous film, and 5 to 15 vol % of ethylene carbonate is contained in a non-aqueous solvent that is contained in the non-aqueous electrolyte. | 01-21-2010 |
20100075233 | BATTERY AND ELECTRODE - A positive electrode includes: a salt represented by the following formula (1) on the surface of an active material contained in a positive electrode active material layer provided on a positive electrode collector, or at least on the surface of the positive electrode active material layer | 03-25-2010 |
20100081061 | ELECTROLYTIC SOLUTION AND BATTERY - An electrolytic solution capable of suppressing the decomposition reaction of the solvent and a battery using it are provided. A cathode ( | 04-01-2010 |
20100081062 | NON-AQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid ester represented by the formula R1-CH | 04-01-2010 |
20100081063 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte dissolving a solute in a non-aqueous solvent wherein the negative electrode contains a negative electrode active material containing powdered silicon and/or silicon alloy and a binding agent, and the non-aqueous electrolyte contains a fluorinated cyclic carbonate represented by a general formula (1) below, and wherein when Li storage volume per unit area in the negative electrode during charging is determined as A and the theoretical maximum Li storage volume per unit area in the negative electrode is determined as B, a utilizing rate (%) of negative electrode as expressed by (A/B)×100 is 45% or less. | 04-01-2010 |
20100081064 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery includes: a positive electrode containing a lithium phosphate compound having an olivine structure; a negative electrode containing a negative electrode active material capable of doping and dedoping lithium; and a non-aqueous electrolyte, the non-aqueous electrolyte containing a cyclic carbonate derivative represented by the following formula (1) and 1,2-dimethoxyethane | 04-01-2010 |
20100119955 | ESTER COMPOUND, AND NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY EACH USING THE ESTER COMPOUND - The present invention includes (1) an ester compound having a specific structure, (2) a nonaqueous electrolytic solution for lithium secondary battery comprising an electrolyte dissolved in a nonaqueous solvent and containing an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, which is excellent in initial battery capacity and cycle property, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution. | 05-13-2010 |
20100119956 | NONAQUEOUS ELECTROLYTE FOR SECONDARY BATTERY AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY EMPLOYING THE SAME - An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties. | 05-13-2010 |
20100143805 | NITROXIDES FOR LITHIUM-ION BATTERIES - This invention relates to overcharge protection and molecular redox shuttles in rechargeable lithium-ion cells. For this, specific nitroxyls or oxoammonium salts are used in the electrolyte. This invention also relates to a method of producing such lithium-ion cells and to a method of recharging such lithium-ion cells. This invention also pertains to some nitroxyls compounds and oxoammonium salts. | 06-10-2010 |
20100143806 | METHOD FOR PRODUCING LOW-ACID LITHIUM BORATE SALTS AND MIXTURES OF LOW-ACID LITHIUM BORATE SALTS AND LITHIUM HYDRIDE - A mixture of low-acid lithium borate salts and lithium hydride, to methods for producing the same and to the use thereof for battery electrolytes. | 06-10-2010 |
20100159338 | Nonaqueous electrolyte and nonaqueous-electrolyte battery - A nonaqueous electrolyte includes an organic solvent and a lithium salt dissolved in the organic solvent, and a quaternary ammonium salt in an amount of 0.06 mol/L or greater and 0.5 mol/L or less, the quaternary ammonium salt having a structure represented by (chemical formula 3): | 06-24-2010 |
20100167131 | Non-Aqueous Electrolyte and Electrochemical Device With an Improved Safety - Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 1-10 wt % of a compound of Formula (1) or its decomposition product, and 1-10 wt % of an aliphatic di-nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between a surface of a cathode active material and an aliphatic di-nitrile compound; and a non-aqueous electrolyte containing 1-10 wt % of a compound of Formula (1) or its decomposition product based on the weight of the electrolyte. | 07-01-2010 |
20100178570 | Nonaqueous electrolytic cell and its manufacturing method - The invention aims to suppress gas generation in a nonaqueous electrolytic cell having a negative electrode containing negative active material such as lithium titanate and particularly suppress swelling in a nonaqueous electrolytic cell by suppressing gas generation at the time of storage at a high temperature. The nonaqueous electrolytic cell comprises a nonaqueous electrolyte containing an electrolytic salt and a nonaqueous solvent, a positive electrode, and a negative electrode containing a negative electrode material into/from which lithium ions are inserted/extracted at a potential higher than the lithium potential by 1.2 V. The nonaqueous electrolytic cell is characterized in that the nonaqueous electrolyte contains vinylene carbonate, the negative electrode has a coat thereon, and the nonaqueous electrolytic cell is used in a range of negative electrode potential nobler than the lithium potential by 0.8 V. A nonaqueous electrolytic cell manufacturing method is characterized in that a nonaqueous electrolyte containing vinylene carbonate is used, the initial charge-discharge is carried out under a condition that the negative potential in the completed charged state exceeds the lithium potential by 0.8 V, a coat is formed on the surface of the negative electrode or a coat is formed on the surface of the negative electrode at the initial charge-discharge in such a way at least once, the negative potential is lowered below the lithium potential by 0.4 V. | 07-15-2010 |
20100178571 | ELECTRODE MATERIAL, AND PRODUCTION METHOD AND USE THEREOF - An electrode material comprising a particle containing at least one member selected from the particles containing silicon, tin, silicon compound and tin compound, and fibrous carbon. The particle includes: (1) a particle comprising at least one member of a silicon particle, tin particle, particle containing a lithium-ion-intercalatable/releasable silicon compound and particle containing a lithium-ion-intercalatable/releasable tin compound; or (2) a particle comprising a silicon and/or silicon compound-containing carbonaceous material deposited onto at least a portion of the surfaces of a carbon particle having a graphite structure. The lithium secondary battery using the electrode material as a negative electrode has high discharging capacity and is excellent in cycle characteristics and characteristics under a load of large current. | 07-15-2010 |
20100183926 | Electrolyte for rechargeable lithium battery and rechargeable lithium battery including the same - An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a lithium salt, a silylborate-based compound, an anhydride component, and a non-aqueous organic solvent. | 07-22-2010 |
20100183927 | Electrolyte for electrochemical device and the electrochemical device thereof - The present invention provides an electrolyte containing novel additive for electrochemical device and the electrochemical device thereof. The additive is a compound represented by below formula (I): | 07-22-2010 |
20100196765 | Reducing DC Resistance In Electrochemical Cells By Increasing Cathode Basis Weight - The use of an increased cathode weight and thickness or basis weight in a primary electrochemical cell for the purpose of reducing DC resistance (Rdc) is described. This is particularly important when the cell is subjected to high rate discharge conditions of the type typically required for medical device applications, such as activating a cardiac defibrillator. A preferred couple is of a lithium/silver vanadium oxide (Li/SVO) cell or a lithium/copper silver vanadium oxide (Li/CSVO) cell. Reducing cell Rdc by increasing basis weight has the added benefit of increasing the cell's energy density through comparatively greater amounts of active cathode material in a give casing volume. | 08-05-2010 |
20100196766 | SECONDARY BATTERY COMPRISING TERNARY EUTECTIC MIXTURES AND PREPARATION METHOD THEREOF - Disclosed is a secondary battery including a cathode, an anode, a separator, and an electrolyte, wherein the electrolyte includes a ternary eutectic mixture prepared by adding (c) a carbonate-based compound to a eutectic mixture containing (a) an amide group-containing compound and (b) an ionizable lithium salt, and the carbonate-based compound is included in an amount of less than 50 parts by weight based on 100 parts by weight of the electrolyte. The use of the disclosed ternary eutectic mixture having flame resistance, chemical stability, high conductivity, and a broad electrochemical window, as the electrolyte material, improves both the thermal stability and quality of the battery. | 08-05-2010 |
20100209783 | LITHIUM-ION BATTERY CONTAINING AN ELECTROLYTE COMPRISING AN IONIC LIQUID - A lithium-ion battery containing: a positive electrode, a negative electrode, an electrolyte comprising: an organic solvent chosen from the group comprising carbonates, linear esters of a saturated acid, or a mixture thereof, an additive capable of forming a passivation film on the surface of the negative electrode, at least one lithium salt, at least one ionic liquid for which the percentage by weight in the electrolyte is greater than or equal to 20% and less than 50%; a separator for which the apparent contact angle between the surface thereof and the electrolyte is less than 20°. | 08-19-2010 |
20100209784 | Power Storage Device - An embodiment of the present invention relates to a power storage device which includes a positive electrode having a positive-electrode current collector with a plurality of first projections, a first insulator provided over each of the plurality of first projections, and a positive-electrode active material provided on a surface of the first insulator and the positive-electrode current collector with the plurality of first projections; a negative electrode having a negative-electrode current collector with a plurality of second projections, a second insulator provided over each of the plurality of second projections, and a negative-electrode active material provided on a surface of the second insulator and the negative-electrode current collector with the plurality of second projections; a separator provided between the positive electrode and the negative electrode; and an electrolyte provided in a space between the positive electrode and the negative electrode and containing carrier ions. | 08-19-2010 |
20100209785 | NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY - A nonaqueous electrolytic solution secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution having an electrolyte salt dissolved in a nonaqueous solvent. The nonaqueous solvent contains 80% by mass or more of a cyclic carbonate which does not have a carbon-carbon multiple bond and which does not contain a halogen and contains a cyclic sulfone compound having any one of structures represented by the following formulae (1) to (4): | 08-19-2010 |
20100216035 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL - A non-aqueous electrolyte secondary cell can be charged at a high voltage of 4.3V or more and has excellent cycle characteristics and excellent high-temperature storage characteristics. The cell includes positive and negative electrodes capable of inserting and extracting lithium, and a non-aqueous electrolyte. The non-aqueous electrolyte contains a non-aqueous solvent, 1,3-dioxane and a dinitrile compound additives, and an electrolyte salt. The non-aqueous solvent contains ethylene carbonate in the range of 25% to 40% by volume under the conditions of 25° C. and 1 atm. | 08-26-2010 |
20100216036 | NON-AQUEOUS LIQUID ELECTROLYTE AND NON-AQUEOUS LIQUID ELECTROLYTE SECONDARY BATTERY USING THE SAME - A non-aqueous liquid electrolyte secondary battery comprising a anode electrode and a cathode electrode, capable of intercalating and deintercalating lithium ions, and a non-aqueous liquid electrolyte, having high charging capacity, capable of maintaining excellent characteristics over a long period of time and excellent in discharge capacity retention in particular, is provided. | 08-26-2010 |
20100233550 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode, and a non-aqueous electrolyte solution in which an electrolyte is dissolved in a non-aqueous solvent. The positive electrode active material includes a lithium-containing transition metal oxide that releases oxygen during initial charge, and the non-aqueous solvent contains a fluorinated cyclic carbonate in which fluorine atoms are directly bonded to a carbonate ring. | 09-16-2010 |
20100248039 | Electrolyte for rechargeable lithium battery and rechargeable lithium battery including the same - Disclosed is an electrolyte for a rechargeable lithium battery that includes a lithium salt, a phosphine compound having at least one trialkylsilyl group and organic solvent, and a rechargeable lithium battery including the electrolyte. The phosphine compound may be tris(trialkylsilyl)phosphine wherein the alkyl groups are the same or different and are each independently selected from C1 to C6 alkyl. | 09-30-2010 |
20100261069 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the invention is to provide a nonaqueous electrolyte secondary battery exhibiting high output characteristics in low-temperature environments, the nonaqueous electrolyte secondary battery being a lithium ion battery which uses a lithium manganese composite oxide as a positive electrode active material and a lithium titanium composite oxide as a negative electrode active material. The nonaqueous electrolyte secondary battery wherein the positive electrode active material contains a lithium-manganese composite oxide containing lithium and manganese as constituent elements, the negative electrode active material contains a lithium-titanium composite oxide containing lithium and titanium as constituent elements, and the separator contains inorganic particles is used. | 10-14-2010 |
20100273066 | Rechargeable Lithium Air Battery Cell Having Electrolyte with Alkylene Additive - A rechargeable lithium-air battery ( | 10-28-2010 |
20100297510 | LITHIUM SECONDARY BATTERY WITH IMPROVED CELL CHARACTERISTICS - Disclosed herein is a lithium secondary cell including 20 to 100 wt. % of lithium transition metal oxide represented by a formula of Li | 11-25-2010 |
20100310944 | ELECTROLYTE OF HIGH TEMPERATURE PROPERTY AND OVERCHARGE-PREVENTION PROPERTY AND SECONDARY BATTERY EMPLOYED WITH THE SAME - Provided is a secondary battery electrolyte having improved high temperature properties and overcharge-prevention properties, particularly improved overcharge-prevention properties under high voltage/high current conditions, in conjunction with a minimized deterioration of the battery performance, by adding 3 to 5% 100 by weight of cyclohexyl benzene (CHB) and 0.2 to 1.5% by weight of 2-fluoro biphenyl (2-FBP) as overcharge-preventing additives to an electrolyte of a lithium secondary battery. | 12-09-2010 |
20100316915 | Electrolyte for electrochemical device and the electrochemical device thereof - The present invention provides an electrolyte containing novel additive for electrochemical device and the electrochemical device thereof. The additive is a compound represented by below formula (I): | 12-16-2010 |
20110008684 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and a carbonate organic solvent. The non-aqueous electrolyte solution further includes a fluoro group-containing sulphonate compound expressed by Chemical Formula 1. When the non-aqueous electrolyte solution is employed for a lithium secondary battery, low-temperature discharging characteristics and life cycle characteristics are greatly improved. Also, even though a battery is stored at a high temperature in a fully-charged state or a charging/discharging process is under progress, the decomposition reaction of a carbonate-based organic solvent is restrained, thereby solving the swelling problem and improving high-temperature life cycle characteristics. | 01-13-2011 |
20110045359 | Reactive ionic liquids - The invention relates to reactive ionic liquids containing organic cations with groups or substituents which are susceptible to electrochemical reduction and anions obtained from fluoroalkyl phosphates, fluoroalkyl phosphinates, fluoroalkyl phosphonates, acetates, triflates, imides, methides, borates, phosphates and/or aluminates, for use in electrochemical cells, such as lithium ion batteries and double-layer capacitors. | 02-24-2011 |
20110091776 | Sandwich Cathode Electrochemical Cell With Wound Electrode Assembly - A new design for a cathode having a configuration of: SVO/first current collector/CF | 04-21-2011 |
20110111307 | LITHIUM SECONDARY CELL - There is provided a lithium secondary cell having specifically excellent discharge capacity, rate characteristics and further cycle characteristics and improved incombustibility (safety). The lithium secondary cell comprises a negative electrode, a non-aqueous electrolytic solution and a positive electrode, in which an active material for the negative electrode comprises lithium titanate and the non-aqueous electrolytic solution comprises a fluorine-containing solvent. | 05-12-2011 |
20110117448 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An object of the invention is to provide an inexpensive non-aqueous electrolyte secondary battery that allows reversible charge and discharge to be carried out. The non-aqueous electrolyte secondary battery according to the invention includes a positive electrode, a negative electrode containing carbon capable of storing and releasing potassium, and a non-aqueous electrolyte including potassium ions. | 05-19-2011 |
20110117449 | SILICON-CONTAINING ALLOYS USEFUL AS ELECTRODES FOR LITHIUM-ION BATTERIES - An electrode composition for a lithium ion battery having the formula Si | 05-19-2011 |
20110123874 | ELECTROCHEMICAL CELLS WITH IMPROVED SEPARATOR AND ELECTROLYTE - An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm | 05-26-2011 |
20110123875 | ELECTROCHEMICAL CELLS WITH IMPROVED SEPARATOR AND ELECTROLYTE - An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm | 05-26-2011 |
20110143219 | Fluoride Ion Battery Electrolyte Compositions - A fluoride ion battery includes a substantially lithium-free anode and cathode. At least one of the anode or cathode contains fluorine, and a substantially lithium-free liquid electrolyte is used for charge transport. The electrolyte is liquid at temperatures below about 200 degrees Celsius, and can be formed from an organic-soluble fluoride salt dissolved in selected classes of solvents. | 06-16-2011 |
20110143220 | THIAZOLE COMPOUNDS AS ADDITIVES IN ELECTROLYTE SOLUTIONS IN ELECTROCHEMICAL CELLS AND BATTERIES - The present invention relates to an electrolyte solution comprising at least one solvent as component A, at least one electrolyte as component B and from 0.1 to 20% by weight, based on the total electrolyte solution, of at least one heteroaromatic compound of the general formula (I) as component C, the use of such a compound in electrolyte solutions, the use of such an electrolyte solution in an electrochemical cell or for metal plating, and also electrochemical cells comprising a corresponding electrolyte solution. | 06-16-2011 |
20110159382 | NONAQUEOUS SOLVENT, AND NONAQUEOUS ELECTROLYTE SOLUTION AND NONAQUEOUS SECONDARY BATTERY USING THE SAME - The nonaqueous solvent of the present invention for a nonaqueous secondary battery primarily contains a mixed solvent of a fluorinated cyclic carbonate having a structure in which one fluorine atom is bonded to each of two alkoxy group carbon atoms adjacent to carbonate oxygen atoms and a fluorinated acyclic carbonate having a similar structure. The fluorinated cyclic carbonate, in comparison with the unsubstituted cyclic carbonate, has not only an enhanced thermal stability but also a suppressed reactivity with the positive electrode in a charged state even at elevated temperatures. In addition, it forms a protective film which, with respect to a negative electrode in a charged state, suppresses reactivity between the negative electrode and the nonaqueous electrolyte solution. The fluorinated acyclic carbonate suppresses the reactivity with the positive electrode in a charged state and also lowers the viscosity of the nonaqueous electrolyte solution. | 06-30-2011 |
20110183215 | Layered Electrode For An Electrochemical Cell - A new cathode design is provided comprising a cathode active material mixed with a binder and a conductive diluent in at least two differing formulations. Each of the formulations exists as a distinct cathode layer. After each layer is pressed or sheeted individually, a first one of the layers is contacted to a current collector. The other layer is then contacted to the opposite side of the layer contacting the current collector. Therefore, by using electrodes comprised of layers, where each layer is optimized for a desired characteristic (i.e. high capacity, high power, high stability), the resulting battery will display improved function over a wide range of applications. Such an exemplary cathode is comprised of: SVO (100−x %)/SVO (100−y %)/current collector/SVO (100−y %)/SVO (100−x %), wherein x and y are different and represent percentages of non-active materials. | 07-28-2011 |
20110183216 | NON-AQUEOUS ELECTROLYTE AND SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a non-aqueous electrolyte including an electrolyte salt and an electrolyte solvent, the non-aqueous electrolyte further including a compound containing both a carboxy group and a (meth)acrylic group, and a secondary battery including the non-aqueous electrolyte. The use of the compound containing both the carboxy group and the (meth)acrylic group as a component for an electrolyte significantly reduces the increase of battery thickness at high temperature storage. | 07-28-2011 |
20110183217 | NONAQUEOUS SECONDARY BATTERY - A positive electrode active material has an average particle diameter of 4.5 to 15.5 μm and a specific surface area of 0.13 to 0.80 m | 07-28-2011 |
20110183218 | NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte includes: a nonaqueous solvent containing 0.1% by volume or more and not more than 50% by volume of at least one member selected from the group consisting of a halogen element-containing chain carbonate represented by the following formula (1) and a halogen element-containing cyclic carbonate represented by the following formula (2); and an electrolyte salt containing a compound represented by the following formula (3) in an amount of 0.001 moles/L or more and not more than 0.5 moles/L relative to the nonaqueous solvent | 07-28-2011 |
20110189549 | REDOX FLOW BATTERY - A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte. | 08-04-2011 |
20110189550 | OVERCHARGE INHIBITOR, AND NONAQUEOUS ELECTROLYTE SOLUTION AND SECONDARY BATTERY USING THE SAME - An overcharge inhibitor is provided which increases an internal resistance of a battery, being electropolymerized by reaction with a positive electrode at a high potential in overcharging. | 08-04-2011 |
20110195319 | LITHIUM SECONDARY BATTERY - The object of the present invention is to provide a lithium secondary battery which can suppress a deterioration for a period of high temperature storage at 50° C. or more. | 08-11-2011 |
20110200887 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode ( | 08-18-2011 |
20110200888 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - An object is to provide a high capacity non-aqueous electrolyte secondary battery in which decomposition of propylene carbonate is suppressed. The non-aqueous electrolyte secondary battery includes: a negative electrode including graphite particles as a negative electrode active material; a positive electrode; a separator; and a non-aqueous electrolyte including propylene carbonate as a non-aqueous solvent. Each of the graphite particles has a surface portion including an amorphous region and a crystal region which includes a plurality of carbon hexagonal net planes stacked along a surface of the graphite particle. Ends of the stacked carbon hexagonal net planes form loops exposed on the surface of the graphite particle. At least a part of the loops are stacked, and the average number of the loops stacked is more than 1 and not more than 2. | 08-18-2011 |
20110206999 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte solution for a lithium secondary battery comprises a silicon-based compound represented by a specific chemical formula and having both a hydroxyl group and a hydrocarbon group having a carbon-carbon double bond. When it is applied to a lithium secondary battery, the non-aqueous electrolyte solution improves deterioration of cycle life characteristics occurring after repeated charge/discharge cycles and prevents swelling phenomena by suppressing a decomposition reaction of an electrolyte solution even when a battery in a fully charged state is stored at high temperature or is charged/discharged, thereby enhancing the life characteristics at high temperature. | 08-25-2011 |
20110223491 | LITHIUM TITANATE COMPOSITE MATERIAL, PREPARATION METHOD THEREOF, NEGATIVE ACTIVE SUBSTANCE AND LITHIUM ION SECONDARY BATTERY CONTAINING THE SAME - Provided is a composite material having spinel structured lithium titanate, wherein the lithium titanate has a microcrystalline grain diameter of about 36-43 nm and an average particle diameter of about 1-3 μm. The composite material comprises a small amount of TiO | 09-15-2011 |
20110229773 | Non-Aqueous Electrolyte And Electrochemical Device Comprising The Same - Disclosed is a non-aqueous electrolyte comprising: an acrylate compound; a sulfinyl group-containing compound; an organic solvent; and an electrolyte salt. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of an acrylate compound; and (ii) a reduced form of a sulfinyl group-containing compound. Further, disclosed is an electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the aforementioned non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the aforementioned electrode. | 09-22-2011 |
20110229774 | LITHIUM ION BATTERY - The present invention provides a lithium ion battery which is protected from deterioration in performance due to oxidation decomposition of the nonaqueous electrolyte solution and excels in cycle life. The lithium ion battery has a cathode including a cathode active material exhibiting a potential of 4.5 V or more with reference to lithium metal; an anode; and a nonaqueous electrolyte solution containing a nonaqueous solvent and at least one lithium salt dissolved in the nonaqueous solvent. The nonaqueous solvent mainly contains a cyclic carbonate and a chain carbonate. The nonaqueous electrolyte solution contains boron ethoxide. | 09-22-2011 |
20110236767 | NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, METHOD FOR PRODUCING CARBON-BASED NEGATIVE ELECTRODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY AND USE THEREOF - Disclosed are a negative electrode for lithium secondary batteries, containing an active material (A) capable of absorbing/desorbing lithium ions and a binder (B), wherein the active material (A) is a carbon-based material obtained from at least one starting material selected from a group consisting of petroleum cokes and coal cokes and having a mean particle size of from 1 to 30 and a true density of from 1.90 to 2.00 g/cm | 09-29-2011 |
20110236768 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery that includes a non-aqueous electrolyte solution containing a non-aqueous solvent and an electrolyte, and vinylene carbonate (C | 09-29-2011 |
20110250505 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A lithium secondary battery comprises a negative electrode, a positive electrode comprising a current collector, an active cathode material comprising a lithium transition metal complex oxide coated on the current collector, and Si | 10-13-2011 |
20110250506 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A lithium secondary battery comprises a negative electrode, a positive electrode comprising a current collector, an active cathode material comprising a lithium transition metal complex oxide, and sulfur, and an electrolyte comprising at least one lithium salt and at least one solvent. The at least one lithium salt is one of LiPF | 10-13-2011 |
20110250507 | BATTERY - A positive electrode includes: a positive electrode collector; and a positive electrode active material layer provided on the positive electrode collector and containing a positive electrode active material and an alkaline earth metal carbonate having a fixed form. | 10-13-2011 |
20110250508 | MIXED LITHIUM NICKEL COBALT OXIDE AND LITHIUM NICKEL MANGANESE COBALT OXIDE CATHODES - A positive electrode material is provided which is a blended combination of lithium nickel cobalt oxide (and aluminum substituted compounds thereof) and lithium nickel manganese cobalt oxide. Also provided Is a non-aqueous electrolyte lithium secondary battery having high specific capacity and good thermal stability characteristics. | 10-13-2011 |
20110256458 | Non-Aqueous Electrolyte Secondary Battery - A non-aqueous electrolyte secondary battery which includes a non-aqueous electrolyte solution containing a non-aqueous solvent and an electrolyte, at least two types of lithium salts with an oxalato complex as an anion are contained in the non-aqueous electrolyte solution. The two types of lithium salts are, as an example, lithium bis(oxalate)borate (Li[B(C | 10-20-2011 |
20110269027 | BATTERY CATHODES - Batteries are disclosed. In some embodiments, a battery includes a cathode having a composition that includes a manganese oxide. The composition has an X-ray diffraction pattern with a first peak at about 18 degrees, a second peak at about 22 degrees, and a third peak at about 32 degrees. | 11-03-2011 |
20110281180 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Embodiments of the present invention are directed to negative active materials for lithium rechargeable batteries and to lithium rechargeable batteries including the negative active materials. The negative active material includes a crystalline carbon material having pores, and amorphous conductive nanoparticles in the pores, on the surface of the crystalline carbon, or both in the pores and on the surface of the crystalline carbon. The conductive nanoparticles have a FWHM of about 0.35 degrees (°) or greater at the crystal plane that produces the highest peak as measured by X-ray diffraction. | 11-17-2011 |
20110287326 | LONG LIFE LITHIUM BATTERIES WITH STABILIZED ELECTRODES - The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life. | 11-24-2011 |
20110294017 | REDOX SHUTTLES FOR LITHIUM ION BATTERIES - Compounds may have general Formula IVA or IVB. | 12-01-2011 |
20110294018 | REDOX SHUTTLES FOR HIGH VOLTAGE CATHODES - A compound has general Formula I, II, III, or IV: | 12-01-2011 |
20110294019 | ELECTRODE STABILIZING MATERIALS - An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes. | 12-01-2011 |
20110311885 | NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte includes: a nonaqueous solvent; an electrolyte salt; an imide salt; and at least one of a heteropolyacid and a heteropolyacid compound. | 12-22-2011 |
20110311886 | NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE CELL - In one example, a nonaqueous electrolyte and a nonaqueous electrolyte cell are configured to prevent deterioration of the cell capability due to an antioxidant under a high temperature environment with the antioxidant in a small content. In one example, the separator is impregnated with an electrolytic solution. In one example, the electrolytic solution contains a solvent, an electrolyte salt and an antioxidant, the solvent contains a halogenated carbonate ester represented, a content of the halogenated carbonate ester is from 0.1 to 50% by mass, and a content of the antioxidant is from 0.01 to 5,000 ppm. | 12-22-2011 |
20110318654 | COMPOSITE MATERIALS, PRODUCTION THEREOF AND USE THEREOF IN ELECTRICAL CELLS - A composite material comprising a reaction product of
| 12-29-2011 |
20120009487 | Non-Aqueous Electrolyte Solution For Lithium Secondary Battery And Lithium Secondary Battery Comprising The Same - A non-aqueous electrolyte solution for a lithium secondary battery includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes LiN(CF | 01-12-2012 |
20120028132 | Electrolyte for Electrochemical Device, Electrolyte Solution Using Same, and Non-Aqueous Electrolyte Battery - [Summary] An object of the present invention is to find a new electrolyte having a characteristics for the electrolyte for an electrochemical device and to provide excellent electrolytic solution for a nonaqueous electrolyte battery and nonaqueous electrolyte battery which use this. | 02-02-2012 |
20120034534 | LITHIUM BATTERIES HAVING ANODES BASED ON POLYTHIOCYANOGEN - A lithium ion battery is provided which contains a cathode, an anode, an electrolyte and a separator, wherein the anode employs polythiocyanogen as an active material. | 02-09-2012 |
20120064415 | NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - A negative electrode for a lithium ion secondary battery includes a negative electrode core member and a negative electrode mixture layer adhering to the negative electrode core member. The negative electrode mixture layer includes active material particles, a cellulose ether compound, and rubber particles. The cellulose ether compound has a degree of etherification of 0.25 or more and 0.7 or less and an average degree of polymerization of 20 or more and 1200 or less. The negative electrode mixture layer contains remaining particles including a water-insoluble portion of the cellulose ether compound and having a mean particle size of 1 μm or more and 75 μm or less. The bonding strength between the active material particles is 98 N/cm | 03-15-2012 |
20120070750 | ELECTROLYTE FOR A BATTERY - An electrolyte for an electrochemical cell and an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent. The electrochemical cell comprises at least one anode, at least one cathode and at least one separator arranged between the at least one anode and the at least one cathode. The electrolyte may be filled between the at least one anode and the at least one cathode. | 03-22-2012 |
20120082904 | HIGH ENERGY DENSITY ALUMINUM BATTERY - Compositions and methods of making are provided for a high energy density aluminum battery. The battery comprises an anode comprising aluminum metal. The battery further comprises a cathode comprising a material capable of intercalating aluminum ions during a discharge cycle and deintercalating the aluminum ions during a charge cycle. The battery further comprises an electrolyte capable of supporting reversible deposition and stripping of aluminum at the anode, and reversible intercalation and deintercalation of aluminum at the cathode. | 04-05-2012 |
20120082905 | HIGH ENERGY DENSITY ALUMINUM BATTERY - Compositions and methods of making are provided for a high energy density aluminum battery. The battery comprises an anode comprising aluminum metal. The battery further comprises a cathode comprising a material capable of intercalating aluminum or lithium ions during a discharge cycle and deintercalating the aluminum or lithium ions during a charge cycle. The battery further comprises an electrolyte capable of supporting reversible deposition and stripping of aluminum at the anode, and reversible intercalation and deintercalation of aluminum or lithium at the cathode. | 04-05-2012 |
20120100437 | ELECTRICITY STORAGE DEVICE - There can be provided an energy storage device comprising a positive electrode comprising a nitroxyl compound having a nitroxyl cation partial structure in an oxidized state and having a nitroxyl radical partial structure in a reduced state; a negative electrode comprising a carbon material which lithium ions can be reversibly intercalated into and deintercalated from; and an electrolytic solution comprising a lithium salt and an aprotic organic solvent, wherein the negative electrode is a negative electrode comprising the carbon material which lithium ions are previously intercalated into, apart from lithium ions associated with a capacity A of lithium capable of being intercalated and deintercalated in charge and discharge, thereby allowing the energy storage device to simultaneously achieve high energy density, high output characteristics, low environmental load, and high stability in charge and discharge cycles. | 04-26-2012 |
20120107699 | LITHIUM ION BATTERY - A high-voltage lithium ion battery of the present invention has a cathode generating a potential of 4.5 V or higher on the metal lithium basis, an anode, and a nonaqueous electrolyte having a lithium salt dissolved in a nonaqueous solvent. A cathode coating layer is on at least a part of the surface of a cathode material mix and includes boron whose amount is equal to or greater than 0.0001% and equal to or less than 0.005% by weight of the cathode material mix. | 05-03-2012 |
20120107700 | NON-AQUEOUS ELECTROLYTE AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME - In view of suppressing gas production during storage at high temperatures and during charge and discharge cycles while ensuring favorable low-temperature characteristics, the invention aims to provide a non-aqueous electrolyte in which the proportion of diethyl carbonate is reduced, and a non-aqueous electrolyte secondary battery using the same that has high safety. The non-aqueous electrolyte of the invention for use in secondary batteries includes ethylene carbonate, propylene carbonate, diethyl carbonate, and an additive, as a non-aqueous solvent. The additive is at least one of a fluorinated aromatic compound having a molecular weight of 90 to 200 and a fatty acid alkyl ester having a molecular weight of 80 to 240. A weight ratio W | 05-03-2012 |
20120121990 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An electrolyte for a lithium secondary battery, the electrolyte comprising: a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: | 05-17-2012 |
20120121991 | HIGH PERFORMANCE LITHIUM OR LITHIUM ION CELL - Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature. | 05-17-2012 |
20120135317 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 05-31-2012 |
20120141885 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120141886 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packet at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120141887 | NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - A subject for the invention is to improve the cycle characteristics of a high-capacity secondary battery containing an active material packed at a high density, by using a particulate active material having a low aspect ratio. | 06-07-2012 |
20120171580 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES - To provide a non-aqueous electrolyte solution for secondary batteries, by which a secondary battery having both high conductivity and stability free from thermal runaway may be obtained. A non-aqueous electrolyte solution for secondary batteries, which comprises a lithium salt (a1) represented by R | 07-05-2012 |
20120196193 | COMPOSITE GRAPHITE PARTICLES AND LITHIUM SECONDARY BATTERY USING THE SAME - The present invention provides composite graphite particles, which are useful for a negative electrode in a secondary battery having high capacitance, good charge-discharge characteristics and good charge-discharge cycle characteristics; and a paste for negative electrode, a negative electrode and a lithium secondary battery which use the composite graphite particles. | 08-02-2012 |
20120208092 | AMORPHOUS ANODE ACTIVE MATERIAL, PREPARATION METHOD OF ELECTRODE USING THE SAME, SECONDARY BATTERY CONTAINING THE SAME, AND HYBRID CAPACITOR - An amorphous anode active material, a preparation method of an electrode using the same, a secondary battery containing the same, and a hybrid capacitor are provided. The amorphous anode active material includes at least one of a metal oxide or a metal phosphate, and the metal oxide or the metal phosphate is amorphous. The metal oxide has the form of MO | 08-16-2012 |
20120208093 | ELECTROLYTIC SOLUTION AND BATTERY - A secondary battery capable of improving high-temperature characteristics is provided. The secondary battery includes a cathode, an anode and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. A solvent of the electrolytic solution includes a main solvent such as a cyclic carbonate which includes halogen and a sub solvent such as carbonate dimer. | 08-16-2012 |
20120214073 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES, AND SECONDARY BATTERY - To provide a non-aqueous electrolyte solution for secondary batteries which has excellent compatibility even in a state where a lithium salt is dissolved therein and further has excellent nonflammability and cycle properties, and a secondary battery having such a non-aqueous electrolyte solution for secondary batteries. | 08-23-2012 |
20120219868 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE - The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. | 08-30-2012 |
20120225359 | Electrolytes in Support of 5 V Li ion Chemistry - This invention described the preparation of a series of compounds selected from the group comprising tris(1,1,1,3,3,3-hexafluoro-iso-propyl)phosphate, tris(perfluoroethyl)phosphate, tris(perfluoro-iso-propyl)phosphate, bis(1,1,1-trifluoroethyl)fluorophosphate, tris(1,1,1-trifluoroethyl)phosphate, hexakis(1,1,1-trifluoroethoxy)phosphazene, tris(1,1,1-trifluoroethoxy)trifluorophosphazene, hexakis(perfluoro-t-butyl)phosphazene and tris(perfluoro-t-butyl)phosphate. These compounds may be used as co-solvents, solutes or additives in non-aqueous electrolytes in various electrochemical devices. The inclusion of these compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries. These compounds may be used in Li ion battery technology and in any electrochemical device that employs non-aqueous electrolytes for the benefit of high energy density resultant from high operating voltages. | 09-06-2012 |
20120237837 | ADDITIVES FOR IMPROVING THE HIGH TEMPERATURE PERFORMANCE IN NON-AQUEOUS RECHARGEABLE LITHIUM-ION BATTERIES - The present invention generally relates to electrochemical batteries, and more specifically, to the combined additives in the non-aqueous electrolyte for rechargeable lithium-ion batteries containing spinel-based cathode that may enhance the performance of the batteries. The mixed additives comprising of 1,8-bis(dialkylamino)naphthalene, wherein alky group is described by C | 09-20-2012 |
20120244445 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY COMPRISING SAME - In one aspect, a rechargeable lithium battery comprising a non-aqueous electrolyte including an organic solvent; a lithium salt and a substituted 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide is provided. The 2-fluoroalkoxy-1,3,2-dioxaphospholane 2-oxide can be a compound represented by the following Chemical Formula 1. | 09-27-2012 |
20120244446 | REDOX SHUTTLE FOR HIGH VOLTAGE LITHIUM BATTERY - A redox shuttle is provided to prevent overcharge of high voltage batteries, such as high voltage lithium ion (Li-ion) batteries. An exemplary redox shuttle includes a methylated closo-monocarborate anion. | 09-27-2012 |
20120251894 | ELECTROLYTE WITH SOLID ELECTROLYTE INTERFACE PROMOTERS - The inventors of the subject matter of the present disclosure have developed an electrolyte solution usable in a lithium or lithium-ion battery, among other types of batteries that offers one or more of the following: improved stability (e.g., stable discharge capacities even after several cycles), elimination of the risk of unintentionally producing hydrochloric acid, improved thermal stability, and reduced production costs associated with manufacturing a battery. Indeed, the inventors have discovered an unexpected result that by including an additive to a dinnimitride salt (e.g., LiDN), the discharge capacity of the battery may improve beyond what is available in the prior art, including LiPF6. For example, production costs may be decreased since LiDN is not water-sensitive, so precautions to ensure that the compound is not exposed to water may be avoided. Further benefits include thermal stability since LiDN may be more thermally stable when compared to LiPF6. | 10-04-2012 |
20120251895 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: | 10-04-2012 |
20120251896 | BATTERY STRUCTURES, SELF-ORGANIZING STRUCTURES, AND RELATED METHODS - An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionicaily conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector. | 10-04-2012 |
20120288771 | RECHARGEABLE LITHIUM BATTERY - In one aspect, a rechargeable lithium battery including a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte is provided. The positive active material can include manganese-based oxide, and the electrolyte can include fluoroethylene carbonate, lithium bis(oxalato)borate, and tris(trialkylsilyl)borate. | 11-15-2012 |
20120288772 | SECONDARY BATTERY, ELECTRONIC DEVICE, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A secondary battery includes a cathode, an anode, and an electrolytic solution. The anode or the electrolytic solution, or both contain a metal salt including an unsaturated carbon bond. | 11-15-2012 |
20120301797 | NON-AQUEOUS ELECTROLYTIC SOLUTION, ELECTROCHEMICAL ELEMENT USING SAME, AND ALKYNYL COMPOUND USED THEREFOR - The present invention provides an excellent nonaqueous electrolytic solution capable of improving low-temperature and high-temperature cycle properties and load characteristics after high-temperature charging storage, an electrochemical element using it, and an alkynyl compound used for it. | 11-29-2012 |
20120315550 | GRAPHENE-MODIFIED LITHIUM IRON PHOSPHATE POSITIVE ELECTRODE ACTIVE MATERIAL, PREPARATION OF THE SAME AND LITHIUM-ION SECONDARY CELL - The invention relates to a graphene-modified lithium iron phosphate positive electrode active material and a method for preparing the same, as well as a lithium-ion secondary cell based on this positive electrode active material. The positive electrode active material is prepared by a method in which graphene or graphene oxide and lithium iron phosphate are dispersed in an aqueous solution, agitated and ultrasonicated to mix homogeneously and for a mixture, dried to obtain a lithium iron phosphate material compounded with graphene or graphene oxide, and annealed at high temperature to obtain finally a graphene-modified lithium iron phosphate positive electrode active material. When compared with conventional modified lithium cells coated with carbon or doped with conductive polymers, the lithium-ion secondary cell based on this positive electrode active material features high cell capacity, good cycling performance of charge and discharge, long life and high cycle stability, and has great utility value. | 12-13-2012 |
20130029232 | LITHIUM ION SECONDARY BATTERY INCLUDING IONIC LIQUID ELECTROLYTE - A lithium ion secondary battery includes a positive electrode, a negative electrode, a separator and an ionic liquid electrolyte. The separator is a polar porous membrane. The ionic liquid electrolyte and the separator made of the polar porous are used in the lithium ion secondary batteries, which can improve the electrochemical performance of the lithium ion secondary batteries. | 01-31-2013 |
20130059210 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - An electrolyte for a rechargeable lithium battery and rechargeable lithium battery including the same is provided. The electrolyte includes a film-forming compound; a lithium salt; and an organic solvent. | 03-07-2013 |
20130065138 | METHOD FOR NEGATIVE ELECTRODE ACTIVE MATERIAL EVALUATION AND NEGATIVE ELECTRODE ACTIVE MATERIAL - Provided is a method for negative electrode active material evaluation useful for steady production of batteries having a prescribed performance level. This evaluation method comprises: (A) running microscopic Raman analysis at a wavelength of 532 nm n times on a sample of a composite carbon comprising a low-crystalline carbon material at least partially on surfaces of particles of a high-crystalline carbonaceous substance (wherein n is 20 or more); (B) with respect to a Raman spectrum obtained in each microscopic Raman analysis run, determining the ratio of its D-band intensity I | 03-14-2013 |
20130071760 | Method for Producing Electrolyte Solution for Lithium Ion Battery, and Lithium Ion Battery Using the Electrolyte Solution - Disclosed is a method for producing a lithium ion battery electrolyte solution containing lithium hexafluorophosphate as an electrolyte and a lithium ion battery using the electrolyte solution. The electrolyte solution is produced by reacting lithium chloride with phosphorus trichloride and chlorine in a non-aqueous organic solvent, reacting a reaction product generated in the solvent with hydrogen fluoride, reacting unreacted remaining hydrogen fluoride with lithium chloride, and then, separating the resulting reaction solution by filtration into a filtrate and a solid residue. The filtrate is obtained as the lithium ion battery electrolyte solution. The solid product is further reacted with phosphorous trichloride and chlorine in a non-aqueous organic solvent. The reaction product generated in the solvent is reacted with hydrogen fluoride, followed by reacting unreacted remaining hydrogen fluoride with lithium chloride. It is possible to accomplish reduction in production cost with the reuse of the reaction residue as production raw material. | 03-21-2013 |
20130078530 | NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK - According to one embodiment, a nonaqueous electrolyte battery includes a nonaqueous electrolyte, a positive electrode, a negative electrode and a separator. The nonaqueous electrolyte includes an asymmetric sulfone-based compound and a symmetric sulfone-based compound. The positive electrode includes a composite oxide represented by Li | 03-28-2013 |
20130078531 | NON-AQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery includes an electrode group includes a positive electrode and a negative electrode disposed through a separator, and a non-aqueous electrolyte. The negative electrode comprises a current collector and a porous negative electrode layer formed on the current collector and containing a lithium compound. The porous negative electrode layer has a first peak at a pore diameter of 0.04 to 0.15 μm and a second peak at a pore diameter of 0.8 to 6 μm in the relation between the pore diameter and log differential intrusion obtained in the mercury press-in method. | 03-28-2013 |
20130095392 | Electrolyte Compositions, Methods Of Making And Battery Devices Formed There From - The invention generally encompasses phosphonium ionic liquids, salts, compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, salts, compositions, wherein the compositions exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range, ionic conductivity, and electrochemical stability. The invention further encompasses methods of making such phosphonium ionic liquids, salts, compositions, operational devices and systems comprising the same. | 04-18-2013 |
20130101904 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES, AND SECONDARY BATTERY - To provide a non-aqueous electrolyte solution for secondary batteries, which has long-term nonflammability and practically sufficient conductivity and which is capable of suppressing a decrease of battery capacity due to charge and discharge at a high rate, and a secondary battery using such a non-aqueous electrolyte solution. A non-aqueous electrolyte solution for secondary batteries, comprising a lithium salt and a solvent for dissolving the electrolyte salt, containing a specific hydrofluoroether, a specific ether other than such a hydrofluoroether, and a predetermined amount of a cyclic carbonate compound which is a compound having a ring made of carbon atoms and oxygen atoms, said ring containing a bond represented by —O—C(═O)—O—, and which contains no carbon-carbon unsaturated bond in its molecule; and a secondary battery comprising such non-aqueous electrolyte solution for secondary batteries, a positive electrode and a negative electrode. | 04-25-2013 |
20130108932 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES, AND SECONDARY BATTERY | 05-02-2013 |
20130115522 | Manufacture of LiPO2F2 | 05-09-2013 |
20130130126 | ELECTROCHEMICAL CELL FOR HIGH-VOLTAGE OPERATION AND ELECTRODE COATINGS FOR USE IN THE SAME - Electrochemical cell for high-voltage operation and electrode coatings for the same. The electrochemical cell and electrode coatings of the present invention can preferably withstand charging voltages to at least 5-Volts. In one embodiment, the electrochemical cell can include an anode, a cathode, a separator, and an electrolyte, wherein the anode, the cathode, and the separator are operatively associated with the electrolyte. The cathode can include, for example, a mixture of a metal oxide, an elongated carbon structure, and a conductive material. The metal oxide can be, for example, a lithium-nickel-manganese oxide, such as LiNi | 05-23-2013 |
20130130127 | GRAPHITE ANODE ACTIVE MATERIAL FOR USE IN LITHIUM SECONDARY BATTERY - By a method that includes coking a residue resulting from distillation of crude oil under reduced pressure and having API gravity of 1 to 5, an asphaltene content of 10 to 50%, a resin content of 5 to 30%, and a sulfur content of 1 to 12% to obtain coke, pulverizing the coke to obtain a carbon powder, and heating the carbon powder at 1000 to 3500 deg C., a graphite anode active material for use in a lithium secondary battery is obtained that has, in X-ray powder diffraction, d | 05-23-2013 |
20130130128 | NONAQUEOUS ELECTROLYTE SOLUTION AND NONAQUEOUS ELECTROLYTE BATTERY USING SAME | 05-23-2013 |
20130143129 | NONAQUEOUS ELECTROLYTE SOLUTION, METHOD FOR PRODUCING SAME, AND NONAQUEOUS ELECTROLYTE BATTERY USING THE ELECTROLYTE SOLUTION | 06-06-2013 |
20130164636 | HYBRID ENERGY STORAGE DEVICE - A hybrid energy storage device includes a positive electrode comprising open-structured carbonaceous materials and at least one lithium-containing inorganic compound characterized by Li | 06-27-2013 |
20130164637 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - A non-aqueous electrolyte solution includes an electrolyte solution including an amide compound and a lithium salt, and a dinitrile compound substituted by a hetero atom at a main chain, and a lithium secondary battery includes the non-aqueous electrolyte solution. By using the non-aqueous electrolyte solution, a lithium secondary battery having an improved swelling phenomenon and an increased charging/discharging performance may be provided. | 06-27-2013 |
20130196236 | ELECTRODE FOR MAGNESIUM SECONDARY BATTERY AND MAGNESIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed is an electrode for a magnesium secondary battery. The electrode includes a current collector and a magnesium plating layer formed on the surface of the current collector. The electrode is simple to produce and is inexpensive. In addition, the electrode is in the form of a thin film. Therefore, the electrode is useful for the fabrication of a magnesium secondary battery with high energy density. Further disclosed is a magnesium secondary battery including the electrode. | 08-01-2013 |
20130209896 | ELECTROCHEMICAL CELLS AND USE THEREOF - Electrochemical cells comprise
| 08-15-2013 |
20130216920 | NONAQUEOUS ELECTROLYTE BATTERY - A non-aqueous electrolyte battery capable of flattening of a voltage property and securing safety at a time of battery abnormality is provided. A lithium-ion secondary battery | 08-22-2013 |
20130224607 | SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ENERGY STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC UNIT - A secondary battery includes: a cathode; an anode; and an electrolytic solution, in which an open-circuit voltage under a fully-charged state per pair of the cathode and the anode is about 4.3 V or over, and the electrolytic solution includes an unsaturated cyclic ester carbonate represented by an expression (1): | 08-29-2013 |
20130230782 | LITHIUM BATTERY - A lithium battery includes a cathode containing a lithium manganese oxide with a spinel structure; an anode; and an electrolyte. When stored at a temperature of about 50° C. or greater for about 7 days or longer in a charged state, the lithium manganese oxide with the spinel structure has a peak intensity ratio of the 660 cm | 09-05-2013 |
20130244121 | NOVEL APPLICATIONS FOR ALLIFORM CARBON - This invention relates to novel applications for alliform carbon, useful in conductors and energy storage devices, including electrical double layer capacitor devices and articles incorporating such conductors and devices. Said alliform carbon particles are in the range of 2 to about 20 percent by weight, relative to the weight of the entire electrode. Said novel applications include supercapacitors and associated electrode devices, batteries, bandages and wound healing, and thin-film devices, including display devices. | 09-19-2013 |
20130244122 | NONAQUEOUS ELECTROLYTIC SOLUTION AND NONAQUEOUS-ELECTROLYTE BATTERY EMPLOYING THE SAME - This invention relates to a nonaqueous electrolytic solution containing an electrolyte, a nonaqueous solvent, and a compound represented by formula (3): | 09-19-2013 |
20130266875 | SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME - An exemplary embodiment of the present invention is a secondary battery which comprises a negative electrode and a battery electrolyte liquid comprising a supporting salt and a non-aqueous electrolyte solvent; wherein the negative electrode is obtained by pre-forming a SEI coating film on a negative electrode structure which is formed by binding a negative electrode active substance comprising a metal (a). that can be alloyed with lithium, a metal oxide (b) that can absorb and desorb lithium ion and a carbon material (c) that can absorb and desorb lithium ion, to a negative electrode current collector with a negative electrode binder, and wherein the non-aqueous electrolyte solvent contains at least an ionic liquid. | 10-10-2013 |
20130273439 | NON-AQUEOUS SECONDARY BATTERY - The non-aqueous secondary battery of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator, the negative electrode contains a negative electrode active material containing a graphitic carbon material and a composite in which a carbon coating layer is formed on a surface of a core material containing Si and O as constituent elements, the composite has a carbon content of 10 to 30 mass %, the composite has an intensity ratio I | 10-17-2013 |
20130280622 | NONAQUEOUS ELECTROLYTIC SOLUTION AND NONAQUEOUS-ELECTROLYTE SECONDARY BATTERY - An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF | 10-24-2013 |
20130288137 | REDOX SHUTTLES HAVING AN AROMATIC RING FUSED TO A 1,1,4,4-TETRASUBSTITUTED CYCLOHEXANE RING - An electrolyte includes an alkali metal salt; an aprotic solvent; and a redox shuttle additive including an aromatic compound having at least one aromatic ring fused with at least one non-aromatic ring, the aromatic ring having two or more oxygen or phosphorus-containing substituents. | 10-31-2013 |
20130288138 | HIGH PERFORMANCE LITHIUM OR LITHIUM ION CELL - Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature. | 10-31-2013 |
20130288139 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - An electrolyte for rechargeable lithium battery includes a lithium salt, a non-aqueous organic solvent, a first additive represented by the following Chemical Formula 1, and a second additive represented by the following Chemical Formula 2. | 10-31-2013 |
20130295470 | ELECTROLYTE ADDITIVE AND ELECTROLYTE INCLUDING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE ELECTROLYTE - An electrolyte additive and electrolyte and lithium rechargeable battery including the electrolyte additive are provided. The electrolyte additive may be a monosubstituted pentafluorocyclotriphosphazene. | 11-07-2013 |
20130323607 | SECONDARY ELECTROCHEMICAL CELLS WITH SEPARATOR AND ELECTROLYTE COMBINATION - A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte comprises at least one salt dissolved in at least one organic solvent. The separator in combination with the electrolyte has an area-specific resistance of less than about 2 ohm-cm | 12-05-2013 |
20130323608 | ELECTROLYTE SOLUTION HAVING IONIC LIQUID AND LITHIUM-ION BATTERY HAVING THE SAME - The present invention provides an electrolyte solution including an ionic liquid having the structure of formula (I): | 12-05-2013 |
20130330636 | NONAQUEOUS ELECTROLYTE AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME - The present invention provides a non-aqueous electrolyte for secondary batteries, capable of suppressing gas generation in the secondary batteries during storage in a high-temperature environment or during charge/discharge cycles; and also provides a non-aqueous electrolyte secondary battery using the same. The non-aqueous electrolyte includes a non-aqueous solvent, a solute dissolved in the non-aqueous solvent, and an additive. The non-aqueous solvent includes ethylene carbonate and propylene carbonate. In the non-aqueous solvent, a content W | 12-12-2013 |
20130337345 | OXIDE ANODE MATERIALS FOR LITHIUM BATTERIES - An electrochemical device includes an electrolyte; a cathode; and an anode including a negative active material of Formula Li | 12-19-2013 |
20130337346 | NONAQUEOUS ELECTROLYTIC SOLUTION AND ELECTROCHEMICAL DEVICE USING THE SAME - The object of the present invention is to provide a nonaqueous electrolytic solution that can improve the electrochemical properties in a broad temperature range and an electrochemical device using the same. A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.1 to 30% by volume of a fluorine atom-containing cyclic carbonate, and further the nonaqueous electrolytic solution includes 0.001 to 5% by mass of a branched dinitrile compound in which the main chain of an alkylene chain linking the two nitrile groups has 2 or more and 4 or less of the carbon number. | 12-19-2013 |
20140023937 | ELECTROLYTES INCLUDING AN ORGANOSILICON SOLVENT AND PROPYLENE CARBONATE FOR LITHIUM ION BATTERIES - An electrolyte includes an organosilicon solvent, propylene carbonate, and a salt. | 01-23-2014 |
20140038062 | METHOD FOR PRODUCING LITHIUM FLUOROSULFONATE, LITHIUM FLUOROSULFONATE, NONAQUEOUS ELECTROLYTIC SOLUTION, AND NONAQUEOUS ELECTROLYTIC SOLUTION SECONDARY BATTERY - The present invention relates to a method for producing lithium fluorosulfonate which comprises reacting a lithium salt and fluorosulfonic acid in a nonaqueous solvent, wherein the lithium salt is a lithium salt not generating water through the reaction step. | 02-06-2014 |
20140038063 | NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte solution for a secondary battery, the nonaqueous electrolyte solution containing an electrolyte, a solvent, and an additive, in which the additive contains a compound represented by formula (1) below, and the content of the compound is 0.05 to 10 parts by mass relative to 100 parts by mass of the total of the solvent. Also disclosed is a nonaqueous electrolyte secondary battery employing the nonaqueous electrolyte solution. | 02-06-2014 |
20140045077 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide a high-capacity non-aqueous electrolyte secondary battery having superior cycle properties and safety. | 02-13-2014 |
20140050992 | COMPOSITE MATERIALS FOR LITHIUM-SULFUR BATTERIES - The present invention relates to sulfur-carbon composite materials comprising | 02-20-2014 |
20140080010 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - To provide with high productivity a non-aqueous electrolyte secondary battery having high capacity and superior low temperature characteristics. | 03-20-2014 |
20140106239 | LITHIUM/SULPHUR ACCUMULATOR - The invention relates to a lithium/sulphur accumulator including at least one unit cell including: a negative electrode; an electrode separator comprising a material soaked with electrolyte, said material comprising at least one nonwoven and having a porosity in the range from 50 to 96%, and a thickness in the range from 50 to 200 micrometers; a positive electrode; and wherein said electrolyte is introduced by an excess quantity, and comprises at least one lithium salt, and the excess quantity of electrolyte amounting to from 20 to 200% of the quantity of electrolyte ensuring the wetting of the electrodes and of the separator. | 04-17-2014 |
20140113205 | RECHARGEABLE LITHIUM BATTERY AND METHOD OF PREPARING SAME - A rechargeable lithium battery and a method of preparing the same are described. The rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and a liquid electrolyte including a lithium salt and a non-aqueous organic solvent. A separator is interposed between the negative electrode and positive electrode and includes a support. A fluoro-based polymer layer is positioned on both sides of the support. The positive electrode includes the positive active material in an amount from about 30 to about 70 mg/cm | 04-24-2014 |
20140134500 | ANODE AND BATTERY USING SAME - An anode and a battery, which have a high capacity and can improve battery characteristics such as large current discharge characteristics and low temperature discharge characteristics are provided. An anode has an anode current collector and an anode active material layer provided on the anode current collector. The density of the anode active material layer is in the range from 1.5 g/cm | 05-15-2014 |
20140154590 | Electrolyte For Lithium-Based Energy Stores - The invention relates to an electrolyte, comprising at least one lithium salt, a solvent, and at least one compound according to general formula (1). The invention further relates to lithium-based energy stores comprising such an electrolyte. | 06-05-2014 |
20140162143 | ELECTROLYTE SOLUTION FOR ELECTROCHEMICAL DEVICES - It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density and high oxidation resistance, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. | 06-12-2014 |
20140170506 | NONAQUEOUS SOLVENT FOR ELECTRICITY STORAGE DEVICE, NONAQUEOUS ELECTROLYTIC SOLUTION AND ELECTRICITY STORAGE DEVICE AND LITHIUM SECONDARY BATTERY USING THE SAME - A nonaqueous solvent for an electricity storage device includes a fluorine-containing cyclic carbonate represented by the following general formula (1) (in general formula (1), R | 06-19-2014 |
20140170507 | NON-AQUEOUS ELECTROLYTE FOR ELECTROCHEMICAL DEVICES, METHOD FOR PRODUCING THE SAME, AND ELECTROCHEMICAL DEVICE USING THE SAME - The present invention provides: a non-aqueous electrolyte for an electrochemical device, having ion conductivity sufficient for practical use and capable of improving energy density; a method for producing the same; and an electrochemical device using the same. The non-aqueous electrolyte for an electrochemical device includes a non-aqueous solvent and an alkaline earth metal chloride. The alkaline earth metal chloride is dissolved in an amount of 0.015 mol or more relative to 1 mol of the non-aqueous solvent. The total content of the non-aqueous solvent and the alkaline earth metal chloride is 70 mass % or more in the non-aqueous electrolyte. | 06-19-2014 |
20140178771 | CYANO-BENZIMIDAZOLE SALTS FOR ELECTROCHEMICAL CELLS AND METHOD FOR SYNTHESIS THEREOF - The present invention discloses a new metal cyano-substituted benzimidazolide salt having formula (I) and its preparation. This new cyano-substituted benzimidazole derivatives exhibited excellent thermal stability. The organic salt of the present invention were soluble in an alkyl carbonate solvent, such as propylene carbonate (PC), dimethyl carbonate (DMC) and ethylene carbonate (EC)/DMC cosolvent. The non-aqueous electrolyte prepared by mixing the organic metal salt of the present invention with the alkyl carbonate solvent shows high conductivity and excellent electrochemical stability. The non-aqueous electrolyte is suitable for use in primary or secondary rechargeable batteries. | 06-26-2014 |
20140199601 | ADDITIVE FOR NONAQUEOUS ELECTROLYTE, NONAQUEOUS ELECTROLYTE, AND ELECTRICITY STORAGE DEVICE - The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution. The present invention is an additive for a non-aqueous electrolyte solution, comprising a compound that has a structure represented by the formula (1-1) or (1-2): | 07-17-2014 |
20140212771 | ELECTRODE MATERIAL FOR RECHARGEABLE ELECTRICAL CELLS COMPRISING ACTIVATED CARBON FIBERS - The present invention relates to an electrode material for an electrical cell comprising activated carbon fibers as component (A) which have been impregnated with elemental sulfur as component (B). The present invention further relates to rechargeable electrical cells comprising at least one electrode which has been produced from or using the inventive electrode material and to a process for producing said inventive electrode material. | 07-31-2014 |
20140220456 | ENHANCED PACKING OF ENERGY STORAGE PARTICLES - The present application is generally directed to energy storage materials such as activated carbon comprising enhanced particle packing properties and devices containing the same. The energy storage materials find utility in any number of devices, for example, in electric double layer capacitance devices and batteries. Methods for making the energy storage materials are also disclosed. | 08-07-2014 |
20140234729 | NON-AQUEOUS LIQUID ELECTROLYTE FOR SECONDARY BATTERY AND SECONDARY BATTERY - A non-aqueous liquid electrolyte for a secondary battery, containing an electrolyte, and at least one or more cyclopropane compound selected from the group consisting of a compound represented by the following formula (I-1), a compound represented by the following formula (II-1), and a compound represented by the following formula (III-1) in an organic solvent, | 08-21-2014 |
20140242474 | ELECTROCHEMICAL ENERGY STORAGE DEVICE, AND ACTIVE MATERIAL FOR THE SAME AND PRODUCTION METHOD THEREOF - Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion. | 08-28-2014 |
20140242475 | BATTERY AND NON-AQUEOUS ELECTROLYTE - An object of the present invention is to provide a battery having excellent durability at high temperature and high voltage. The present invention is a battery including a positive electrode, a negative electrode and a non-aqueous electrolyte, wherein the non-aqueous electrolyte contains (i) a compound represented by the general formula (1): | 08-28-2014 |
20140248543 | Silicon Nanostructure Active Materials for Lithium Ion Batteries and Processes, Compositions, Components and Devices Related Thereto - The present invention relates to nanostructured materials for use in rechargeable energy storage devices such as lithium batteries, particularly rechargeable secondary lithium batteries, or lithium-ion batteries (LIBs). The present invention includes materials, components, and devices, including nanostructured materials for use as battery active materials, and lithium ion battery (LIB) electrodes comprising such nanostructured materials, as well as manufacturing methods related thereto. Exemplary nanostructured materials include silicon-based nanostructures such as silicon nanowires and coated silicon nanowires, nanostructures disposed on substrates comprising active materials or current collectors such as silicon nanowires disposed on graphite particles or copper electrode plates, and LIB anode composites comprising high-capacity active material nanostructures formed on a porous copper and/or graphite powder substrate. | 09-04-2014 |
20140272607 | NON-AQUEOUS ELECTROLYTE FOR LITHIUM-ION BATTERY - A substantially non-aqueous electrolyte solution includes an alkali metal salt, a polar aprotic solvent, and an organophosphorus compound of Formula IA, IB, or IC: | 09-18-2014 |
20140287327 | METHOD OF COATING SUBSTRATE FOR LITHIUM SECONDARY BATTERY WITH INORGANIC PARTICLES AND LITHIUM SECONDARY BATTERY COMPRISING SUBSTRATE COATED BY THE METHOD - The present invention provides a method of coating a substrate for a lithium secondary battery with inorganic particles, comprising charging the inorganic particles to form charged inorganic particles; transferring the charged inorganic particles on the substrate for a lithium secondary battery to form a coating layer; and fixing the coating layer with heat and pressure. Such a coating method according to one embodiment of the present invention uses electrostatic force without the addition of a solvent, and therefore, non use of a solvent can result in cost-reducing effects since there is no burden on the handling and storing of the solvent, and since a drying procedure after slurry coating is not needed, it allows for the preparation of a lithium secondary battery in a highly effective and rapid manner. | 09-25-2014 |
20140335427 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME - An electrolyte for a lithium secondary battery and a lithium secondary battery including the electrolyte are provided. The electrolyte includes a compound represented by Formula 1 below; a nonaqueous organic solvent; and a lithium salt: | 11-13-2014 |
20140335428 | GRAPHITE MATERIAL, CARBON MATERIAL FOR BATTERY ELECTRODE, AND BATTERY - A graphite material having pores which, when 200 rectangular regions of 6 μm×8 μm are randomly selected in a surface image of the graphite material observed by a scanning electron microscope, in the surface of the graphite material appearing in the regions, a pore appearing on the surface and having an aperture in a shape having a diameter of 15 nm to 200 nm, a circularity degree of 0.75 to 1.0 and a major axis/minor axis ratio of 1.0 to 1.5 is visible in two regions or more. Also disclosed is a carbon material for battery electrodes, a paste for electrodes, an electrode and a lithium ion secondary battery including the graphite material. | 11-13-2014 |
20140342246 | POSITIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A rechargeable lithium battery includes a positive electrode including a positive active material, a negative electrode including a negative active material and an electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the positive active material includes a nickel-based composite oxide represented by the following Chemical Formula 1, the non-aqueous organic solvent includes ethylene carbonate, and the ethylene carbonate is included in an amount of 7.5 to 27.5 volume % based on the total amount of the non-aqueous organic solvent. | 11-20-2014 |
20140356734 | ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME - An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery including the same are provide. The electrolyte includes a non-aqueous organic solvent, a lithium salt which is dissolved in the non-aqueous solvent and a additive shown as general formula I. Wherein R | 12-04-2014 |
20150024284 | NONAQUEOUS ELECTROLYTIC SOLUTION AND NONAQUEOUS-ELECTROLYTE BATTERY EMPLOYING THE SAME - The present invention is to provide: a nonaqueous-electrolyte battery excellent in terms of safety during overcharge and high-temperature storability; and a nonaqueous electrolytic solution which gives the battery. The present invention relates to a nonaqueous electrolytic solution comprising an electrolyte and a nonaqueous solvent, wherein the nonaqueous electrolytic solution comprises at least one of specific compounds. | 01-22-2015 |
20150037691 | REDOX SHUTTLES FOR LITHIUM ION BATTERIES - An electrolyte may include compounds of general Formula IVA or IVB. | 02-05-2015 |
20150050564 | SECONDARY BATTERY - Providing a secondary battery maintaining the cyclability at room temperature and additionally being able to inhibit the cyclability from declining when being employed at high temperature. | 02-19-2015 |
20150064577 | LITHIUM ION SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME - A lithium ion secondary battery includes a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein the positive electrode contains, as a positive electrode active material, a lithium-containing transition metal compound that belongs to space group Fd3-m and that contains lithium and transition metal M (M represents Mo, or Mo and at least one selected from the group consisting of Mn, Co, Ni, W, and V), a molar ratio of the lithium to the transition metal M is 2.7 or more and 3.3 or less, and a ratio of a mass of the lithium-containing transition metal compound to a total mass of the positive electrode active material in the positive electrode is 0.8 or more. | 03-05-2015 |
20150072249 | NONAQUEOUS ELECTROLYTE BATTERY - According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer. The negative electrode material layer includes a negative electrode active material capable of absorbing and releasing lithium at a potential of 0.78 V (vs. Li/Li | 03-12-2015 |
20150079483 | OXIRANE-BASED ADDITIVES IN SUPPORT OF FIVE VOLT LITHIUM ION CHEMISTRY - The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems. | 03-19-2015 |
20150079484 | ELECTROLYTE ADDITIVES IN SUPPORT OF FIVE VOLT LITHIUM ION CHEMISTRY - The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages. | 03-19-2015 |
20150093653 | ADDITIVE FOR LITHIUM ION RECHARGEABLE BATTERY CELLS - A lithium ion rechargeable battery cell includes an anode having electroactive material-containing particles wherein the electroactive material is selective from one or more of silicon, germanium, and tin. A cathode includes an active material adapted to incorporate lithium and also to liberate lithium electrochemically. The anode is adapted to incorporate lithium during lithiation. Also provided is an electrolyte, wherein the electrolyte includes both a cyclic carbonate having a vinyl group and a fluorinated cyclic carbonte. The total amount of the cyclic carbonate including a vinyl group and the fluorinated cyclic carbonate together is in the range of 3.5 wt % to 70 wt % based on the total weight of the electrolyte solution. | 04-02-2015 |
20150099193 | ELECTROLYTIC SOLUTION FOR NON-AQUEOUS ENERGY STORAGE DEVICE AND LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery that operates at a high voltage, has a high cycle life, and generates less gas, and an electrolytic solution for such a lithium ion secondary battery. An electrolytic solution for a non-aqueous energy storage device, comprising: a non-aqueous solvent; a lithium salt (A) having no boron atom; a predetermined lithium salt (B) containing a boron atom; and a compound (C) in which at least one of hydrogen atoms in an acid selected from the group consisting of proton acids having a phosphorus atom and/or a boron atom, sulfonic acids, and carboxylic acids is replaced with a substituent represented by formula (3): | 04-09-2015 |
20150104717 | NON-AQUEOUS ELECTROLYTE AND ELECTROCHEMICAL DEVICE WITH AN IMPROVED SAFETY - Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyt, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. | 04-16-2015 |
20150118579 | Electrolytic Solution for Nonaqueous Electrolyte Batteries and Nonaqueous Electrolyte Battery Using the Same - The present invention provides an electrolytic solution for a nonaqueous electrolyte battery and a nonaqueous electrolyte battery having excellent cycle characteristics and high-temperature storage characteristics without causing hydrolysis of a fluorine-containing lithium salt, such as LiPF | 04-30-2015 |
20150118580 | Electrolyte for Non-Aqueous Electrolyte Battery, and Non-Aqueous Electrolyte Battery Using Same - What is disclosed is a non-aqueous electrolyte for non-aqueous electrolyte battery including a non-aqueous solvent and at least lithium hexafluorophosphate as a solute. This electrolyte is characterized by containing at least one siloxane compound represented by the general formula (1) or the general formula (2). This electrolyte has a storage stability which is improved than electrolytes prepared by adding conventional siloxane compounds. | 04-30-2015 |
20150118581 | RECHARGEABLE LITHIUM ION BATTERY, AND MANUFACTURING METHOD FOR RECHARGEABLE LITHIUM ION BATTERY - A rechargeable lithium ion battery including a negative active material, the negative active material including a carbon-based active material, and an electrolyte solution that includes a S═O-containing compound, the S═O-containing compound having a structure that is selected according to a G band/D band ratio of the carbon-based active material. | 04-30-2015 |
20150125760 | CAPACITORS HAVING CONDITIONED CARBON FOR ELECTRODES - There is provided an improvement for capacitors having activated carbon electrodes by the use of an electrolyte solution containing a carbonate of the formula RO(C═O)OR | 05-07-2015 |
20150125761 | NON-AQUEOUS ELECTROLYTE AND POWER STORAGE DEVICE USING SAME - The present invention includes [1] a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution and being capable of improving electrochemical characteristics in a broad temperature range; and [2] an energy storage device including a positive electrode, a negative electrode, and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution containing from 0.001 to 5% by mass of a specified acyclic lithium salt in the nonaqueous electrolytic solution. | 05-07-2015 |
20150132666 | POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - There is provided a positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode being capable of improving the charge-discharge cycle characteristics of the nonaqueous electrolyte secondary battery. A positive electrode | 05-14-2015 |
20150140450 | ELECTROLYTE SOLUTION, METHOD OF PREPARING THE SAME, AND MAGNESIUM BATTERY INCLUDING THE ELECTROLYTE SOLUTION - An electrolyte solution including a non-aqueous organic solvent and a magnesium salt represented by Formula 1: | 05-21-2015 |
20150318541 | HIGH-CAPACITY NEGATIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed are a high-capacity negative electrode active material and a lithium secondary battery including the same. More particularly, the negative electrode active material includes 50 wt % or more of an alkali metavanadate based on the total weight of a negative electrode active material, wherein the alkali metavanadate has a crystalline phase or an amorphous phase, and a composition of formula AVO | 11-05-2015 |
20150318571 | LITHIUM-ION SECONDARY BATTERY - Provided is a lithium ion secondary battery having a large energy density and an improved capacity retention rate after repeated use even under high voltage application (cycle characteristics), and excellent in safety. A lithium ion secondary battery containing a negative electrode for reversibly intercalating and deintercalating lithium ions, a positive electrode containing lithium vanadium phosphate, and a non-aqueous electrolytic solution containing lithium fluoroethyl phosphate as an electrolyte can be obtained. | 11-05-2015 |
20150325879 | LITHIUM SECONDARY BATTERY - The present invention may improve the lifetime characteristics of a lithium secondary battery, and particularly, may provide a non-aqueous electrolyte solution or cathode including a phosphate-based compound which may exhibit stable and excellent lifetime characteristics at high temperature and high voltage regardless of the moisture content or the presence of a pressing process of the electrode. | 11-12-2015 |
20150325880 | RECHARGEABLE LITHIUM BATTERY - Disclosed is a rechargeable lithium battery including a positive electrode; a negative electrode including a negative active material, the negative active material including a silicon-based material; and an electrolyte solution including a lithium salt, a non-aqueous organic solvent, and an additive. The additive includes an ethylene carbonate-based compound represented by Chemical Formula 1 and a pyridine-based compound represented by Chemical Formula 2: | 11-12-2015 |
20150333316 | NEGATIVE-ELECTRODE MATERIAL, NEGATIVE-ELECTRODE ACTIVE MATERIAL, NEGATIVE ELECTRODE, AND ALKALI METAL ION BATTERY - A negative-electrode material of the present invention is a carbonaceous negative-electrode material used for an alkali metal ion battery and an average layer spacing d | 11-19-2015 |
20150333318 | NEGATIVE ELECTRODE MATERIAL FOR LITHIUM-BASED BATTERIES - A negative electrode material includes an active material, which is present in an amount ranging from about 60 wt % to about 95 wt % of a total wt % of the negative electrode material. The negative electrode material further includes a polyimide binder, which is present in an amount ranging from about 1 wt % to about 20 wt % of the total wt % of the negative electrode material. The polyimide binder contains a repeating unit, where a backbone structure of each repeating unit has no ether group present and no more than one carbonyl group present. The negative electrode material also includes a conductive filler, which is present in an amount ranging from about 3 wt % to about 20 wt % of the total wt % of the negative electrode material. | 11-19-2015 |
20150364762 | RECHARGEABLE LITHIUM BATTERY - Disclosed is a rechargeable lithium battery that includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte, wherein the positive active material includes a compound represented by the following Chemical Formula 1, the negative active material includes a silicon-based compound, the compound represented by the above Chemical Formula 1 is included in an amount of about 3 wt % to about 30 wt % based on 100 wt % of the positive active material, and the silicon-based compound is included in an amount of about 3 wt % to about 10 wt % based on 100 wt % of the negative active material. | 12-17-2015 |
20150364792 | ELECTROLYTE SOLUTION FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE - It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. Furthermore, the present invention relates to an electrolytic solution for an electrochemical device, comprising (1) a supporting electrolyte comprising a magnesium salt, and (2) at least one or more kinds of the compound represented by following general formula (I) | 12-17-2015 |
20150380768 | ELECTROLYTE SOLUTION AND LITHIUM ION SECONDARY BATTERY PROVIDED WITH SAME - The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO | 12-31-2015 |
20160006078 | ELECTROLYTIC SOLUTION, ELECTROCHEMICAL DEVICE, LITHIUM ION SECONDARY BATTERY, AND MODULE - The present invention aims to provide an electrolytic solution which restrains gas generation and has excellent battery characteristics. The electrolytic solution includes a nonaqueous solvent (I), an electrolyte salt (II), and 0.001 to 20% by mass of a compound represented by the formula (1) or the formula (A), | 01-07-2016 |
20160028115 | ELECTROLYTE SOLUTION ADDITIVE FOR LITHIUM SECONDARY BATTERY, AND NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY INCLUDING THE ADDITIVE - Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. | 01-28-2016 |
20160028119 | LITHIUM ION SECONDARY BATTERY - A lithium ion secondary battery comprising: a positive electrode comprising a positive electrode active material; a negative electrode comprised mainly of a material capable of storing and releasing lithium ions; and an electrolytic liquid,
| 01-28-2016 |
20160028124 | ELECTROLYTIC SOLUTION AND BATTERY - An electrolytic solution and battery are provided. The battery includes a cathode, an anode and the electrolytic solution, and a separator arranged between the cathode and the anode is impregnated with the electrolytic solution. The solvent of the electrolytic solution includes a sulfone compound having a sulfonyl fluoride type structure. | 01-28-2016 |
20160056503 | ADDITIVE FOR ELECTROLYTE OF LITHIUM BATTERY, ELECTROLYTE INCLUDING THE SAME, AND LITHIUM BATTERY USING THE ELECTROLYTE - Provided are an additive for an electrolyte of a lithium battery; an electrolyte having the same; and a lithium battery using the electrolyte. The additive for an electrolyte of a lithium battery includes a triazine triphosphonate compound. | 02-25-2016 |
20160056505 | ELECTROLYTE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive represented by the following Chemical Formula 1: | 02-25-2016 |
20160093917 | Impact Resistant Electrolytes - A passively impact resistant composite electrolyte composition includes an electrolyte solvent, up to 2M of an electrolyte salt, and shear thickening ceramic particles having a polydispersity index of no greater than 0.1, an average particle size of in a range of 50 nm to 1 μm, and an absolute zeta potential of no greater than ±40 mV. | 03-31-2016 |
20160126592 | NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte solution for a secondary battery, including an electrolyte, a solvent and an additive, and a nonaqueous electrolyte secondary battery including the nonaqueous electrolyte solution. The additive contains a compound represented by the following formula (I): | 05-05-2016 |
20160149262 | CONCENTRATED ELECTROLYTE SOLUTION - The present invention provides a single-phase or homogeneous solution comprising a high concentration of a salt, in particular a lithium salt, in an organic solvent. Such a high salt content in organic solvent is useful in a variety of applications including, but not limited to, in electrical energy storage devices as well as other devices that can benefit from a low-volatility liquid electrolyte. | 05-26-2016 |
20160164096 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery includes a negative electrode including a negative active material including a silicon-based material and a carbon-based material; and an electrolyte solution, wherein the negative electrode further includes greater than or equal to about 0.01 parts by weight and less than or equal to about 1 part by weight of a compound represented by Chemical Formula 1, based on 100 parts by weight of the negative active material, and at least one, selected from the electrolyte solution and the negative electrode, includes greater than or equal to about 0.1 wt % and less than or equal to about 2 wt % of lithium fluorosulfonate and/or lithium bis(fluorosulfonyl)imide, based on the total weight of the electrolyte solution: | 06-09-2016 |
20160164142 | USE OF REACTIVE LITHIUM ALKOXYBORATES AS ELECTROLYTE ADDITIVES IN ELECTROLYTES FOR LITHIUM ION BATTERIES - An electrolyte composition (A) containing (i) at least one aprotic organic solvent, (ii) at least one conducting salt different from the at least one compound of formula (I), (iii) at least one compound of formula (I), wherein R | 06-09-2016 |
20160172665 | NEGATIVE ELECTRODE FOR LITHIUM-BASED BATTERIES | 06-16-2016 |
20160172708 | OXIRANYL-ACYL DERIVATIVES AS ADDITIVES FOR ELECTROLYTES IN LITHIUM ION BATTERIES | 06-16-2016 |
20160172709 | OXIRANYL ESTER DERIVATIVES AS ADDITIVE FOR ELECTROLYTES IN LITHIUM ION BATTERIES | 06-16-2016 |
20160190643 | NON-AQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY HAVING THE SAME - The present disclosure provides a non-aqueous electrolyte solution for a lithium secondary battery, comprising an amide compound having a specific structure; an ionizable lithium salt; a cyclic sulfate; and an organic solvent, and a lithium secondary battery comprising the non-aqueous electrolyte solution. | 06-30-2016 |
20160204469 | LITHIUM ION BATTERY ELECTROLYTES AND ELECTROCHEMICAL CELLS | 07-14-2016 |
20170237122 | ELECTROLYTE FOR LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING THE SAME | 08-17-2017 |
20180026303 | NONAQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES AND SECONDARY BATTERY PROVIDED WITH SAME | 01-25-2018 |
20180026307 | ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY HAVING SAME | 01-25-2018 |
20190148772 | ELECTROLYTE ADDITIVE FOR LITHIUM BATTERY, ORGANIC ELECTROLYTE SOLUTION INCLUDING THE SAME, AND LITHIUM BATTERY INCLUDING THE SAME | 05-16-2019 |