Entries |
Document | Title | Date |
20090081557 | LITHIUM BATTERIES USING POLY(ETHYLENE OXIDE)-BASED NON-AQUEOUS ELECTROLYTES - Lithium-air cells using poly(ethyleneoxide) (PEO) siloxane-based or poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity. Such PEO silioxanes and phosphates generally have the formulas Ia, Ib, Ic, Id, IIa, IIb, IIc, where: | 03-26-2009 |
20090081558 | ACTIVE MATERIALS FOR NON-AQUEOUS ELECTROLYTE BATTERY AND NON-AQUEOUS ELECTROLYTE BATTERY - There is disclosed an active material for a non-aqueous electrolyte battery includes titanium-containing oxide having a crystal structure belonging to P4 | 03-26-2009 |
20090155696 | ORGANIC ELECTROLYTIC SOLUTION AND LITHIUM BATTERY EMPLOYING THE SAME - An organic electrolytic solution for a lithium primary or secondary battery includes a lithium salt; an organic solvent; a radical initiator represented by Formula 1 below; and a polymerizable monomer represented by Formula 2 below: | 06-18-2009 |
20090191466 | Battery - A battery includes an anode having an alkali metal as the active material, a cathode having, for example, iron disulfide as the active material, and an electrolyte containing a sulfolane and 1,3-dioxolane. | 07-30-2009 |
20090208849 | Lithium cell - A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS | 08-20-2009 |
20090269676 | NON-AQUEOUS ELECTROLYTES FOR LITHIUM ELECTROCHEMICAL CELLS - A non-aqueous electrolyte for an electric current producing electrochemical cell is provided comprising an ionically conductive salt and an additional ionically conducting salt in a non-aqueous medium, the additional ionically conducting salt corresponding to the formula M | 10-29-2009 |
20090305145 | 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; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature. | 12-10-2009 |
20090311609 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SOLUTION - 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. | 12-17-2009 |
20100009268 | LITHIUM PRIMARY BATTERY - The present invention intends to provide a lithium primary battery excellent in large-current discharge characteristics in a low temperature environment without sacrificing the high-temperature storage characteristics. The present invention relates to a lithium primary battery including a positive electrode including a fluoride as a positive electrode active material, a negative electrode including metallic lithium or a lithium alloy as a negative electrode active material, a separator interposed between the positive electrode and the negative electrode, and an electrolyte. The positive electrode further includes a metal oxide being capable of absorbing and desorbing lithium ions, having a spinel structure, and having a discharge potential versus lithium lower than that of the fluoride. | 01-14-2010 |
20100028785 | ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - An electrolyte for a lithium ion secondary battery is provided. The electrolyte includes a non-aqueous organic solvent, a lithium salt, an ionic liquid and an additive. The additive has a lowest unoccupied molecular orbital (LUMO) level of −0.5 to 1.0 eV and a highest occupied molecular orbital (HOMO) level lower than −11.0 eV. Further provided is a lithium ion secondary battery including the electrolyte. The battery is advantageous in terms of overcharge safety and heat stability. In addition, the battery has improved high-efficiency properties and cycle life characteristics. | 02-04-2010 |
20100055576 | tert-BUTYLPHENYL SULFONATE COMPOUND, NONAQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY USING THE SAME, AND LITHIUM SECONDARY BATTERY USING THE SAME - The disclosed subject matter relate to a di-tert-butylphenyl alkylsulfonate compound, tert-butylphenyl alkylsulfonate compound, di-tert-butylphenyl arylsulfonate compound or tert-butylphenyl arylsulfonate compound useful as an intermediate raw material of a pharmaceutical, agricultural chemical, electronic material or polymer material and the like, or as a battery material, and also provides a nonaqueous electrolytic solution for a lithium secondary battery having superior cycle performance and other battery properties through the use thereof, and a lithium secondary battery. The disclosed embodiments further relate to a nonaqueous electrolytic solution for use as in a lithium secondary battery containing, in a nonaqueous electrolytic solution in which an electrolyte salt is dissolved in a nonaqueous solvent, 0.01 to 10% by weight of a di-tert-butylphenyl alkylsulfonate compound, tert-butylphenyl alkylsulfonate compound, di-tert-butylphenyl arylsulfonate compound or tert-butylphenyl arylsulfonate compound, and to a lithium secondary battery and a compound. | 03-04-2010 |
20100104951 | ANODE CURRENT COLLECTOR, ANODE, AND SECONDARY BATTERY - A secondary battery that has superior safety and is able to provide more favorable cycle characteristics is provided. A laminated body in which a cathode and an anode are layered with a separator impregnated with an electrolytic solution in between is contained in a package can and a package cup. In the anode, an anode active material layer containing an anode active material such as silicon is provided on an anode current collector in which projection sections are formed on a base material. The base material contains carbon and sulfur respectively having a content ratio of 100 ppm or less, and contains crystallites having an average diameter of from 0.01 μm to 5 μm both inclusive. | 04-29-2010 |
20100159337 | ANODE AND SECONDARY BATTERY - A secondary battery is provided that is capable of improving the cycle characteristics. The secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated into a separator provided between the cathode and the anode. In the anode, an anode active material layer and a compound layer are provided on both faces of an anode current collector. The anode active material layer contains a plurality of anode active material particles. The anode active material particles have a multilayer structure of an anode active material containing silicon as an element. The thickness of each layer in the multilayer structure ranges from 50 nm to 1050 nm. Thus, contact characteristics between each layer, contact characteristics between the anode active material layer and the anode current collector, and current collectivity are improved. | 06-24-2010 |
20110008683 | CELL OR BATTERY WITH A METAL LITHIUM ELECTRODE AND ELECTROLYTES THEREFOR - The invention discloses a method of increasing the cycle life of rechargeable battery with a negative electrode (anode) made of lithium or lithium-containing alloys and electrolyte/salt solution which comprises one or more non-aqueous organic solvents and one or more lithium salts, the method comprising adding to the electrolyte/salt solution a lithium dendrite scavenging additive in an amount sufficient that a rate of lithium dendrite formation is equal to or lower than a rate of lithium dissolution occurring due to interaction with the dendrite scavenging additive dissolved in the electrolyte. | 01-13-2011 |
20110020711 | LITHIUM BATTERY - The present invention has an objective to improve the storage characteristics and pulse discharge characteristics, especially in the high temperature region of 100° C. or more, of a lithium battery comprising a positive electrode including manganese oxide, a negative electrode, and a non-aqueous electrolyte. To achieve this objective, the lithium battery of the present invention includes a positive electrode ( | 01-27-2011 |
20110159381 | RECHARGEABLE MAGNESIUM ION CELL COMPONENTS AND ASSEMBLY - A magnesium battery electrode assembly is described, including a current collector comprising a carbonaceous material and an electrode layer comprising an electrode active material disposed on the current collector. | 06-30-2011 |
20110183214 | 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 |
20110229772 | ELECTROLYTE SOLUTION AND USE THEREFOR - The present invention provides an electrolyte solution including: a solvent composed primarily of a BF | 09-22-2011 |
20110236766 | ELECTROLYTE COMPOSITIONS FOR BATTERIES USING SULPHUR OR SULPHUR COMPOUNDS - There are disclosed electrolytes comprising solutions of lithium salts with large anions in polar aprotic solvents with a particular concentration of background salts. The concentration of the background salts is selected to be equal or close to the concentration of a saturated solution of these salts in the aprotic solvents used. The electrolytes disclosed can be used in chemical sources of electric energy such as secondary (rechargeable) cells and batteries comprising sulphur-based positive active materials. The use of such electrolytes increases cycling efficiency and cycle life of the cells and batteries. | 09-29-2011 |
20110274987 | SECONDARY BATTERY, ELECTROLYTIC SOLUTION FOR SECONDARY BATTERY, CYCLIC POLYESTER, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM - A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution containing a nonaqueous solvent and an electrolyte salt. The nonaqueous solvent contains cyclic polyester obtained by dehydrating and condensing two or more divalent carboxylic acid and one or more divalent alcohol. | 11-10-2011 |
20120070749 | Process for the preparation of 4-fluoro-4-R-5-R'-1,3-dioxolane-2-ones - The present invention concerns 4-fluoro-4-R-5-R′-1,3-dioxolane-2-ones, wherein R is an alkyl group and R′ is H or a C1 to C3 alkyl group, their manufacture, solvent mixtures for lithium ion batteries containing them and conductive salt solutions for lithium ion batteries, e.g. solutions containing LiPF | 03-22-2012 |
20120107698 | ELECTROCHEMICAL DEVICE WITH A MAGNESIUM ANODE AND A STABLE, SAFE ELECTROLYTE COMPATIBLE WITH SULFUR - An electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte containing a solvent and a LiCl complex of a magnesium halide salt of a sterically hindered secondary amine is provided. In a preferred embodiment the electrolyte contains tetrahydrofuran and 2,2,6,6-tetramethylpiperidinyl-magnesium chloride-lithium chloride complex. | 05-03-2012 |
20120129055 | NON-AQUEOUS ELECTROLYTE TYPE LITHIUM ION SECONDARY CELL - There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes: an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator; and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a layered structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of β mol relative to the total content α mol of moisture to be mixed in the cell. β satisfies −1.3≦log(β/α)≦1. | 05-24-2012 |
20120189921 | LITHIUM SULPHIDE BATTERY AND METHOD OF PRODUCING THE SAME - A chemical source of electrical energy may include a positive electrode (cathode) made of an electrically conductive material, a mixture of lithium sulphide and sulphur, a permeable separator or membrane, and a negative electrode (anode) made of an electrically conductive material or a material that is able reversibly to intercalate lithium ions, wherein an aprotic electrolyte comprising at least one lithium salt in at least one solvent is provided between the electrodes. | 07-26-2012 |
20120219867 | MAGNESIUM SECONDARY BATTERY, USE OF ELECTROLYTIC SOLUTION IN MAGNESIUM SECONDARY BATTERY AND ELECTROLYTIC SOLUTION FOR MAGNETIC SECONDARY BATTERY - A magnesium secondary battery includes a positive electrode, a negative electrode, a separator membrane and an electrolytic solution. The electrolytic solution includes nitrogen-containing heterocyclic magnesium halide and an organic ether solvent. | 08-30-2012 |
20120282531 | ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive. The additive includes a gamma butyrolactone compound substituted with at least one F atom at the α-position. | 11-08-2012 |
20130004862 | NONAQUEOUS ELECTROLYTE SOLUTION, ELECTROCHEMICAL ELEMENT USING SAME, AND 1,2-DIOXYPROPANE COMPOUND USED IN SAME - An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving low-temperature load characteristics after high temperature charging storage, an electrochemical element using it, and a 1,2-dioxypropane compound used for it. | 01-03-2013 |
20130052543 | SECONDARY BATTERY, ELECTROLYTIC SOLUTION, BATTERY PACK, ELECTRONIC DEVICE, AND ELECTRICAL VEHICLE - A secondary battery capable of improving cycle characteristics, conservation characteristics, and load 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 an electrolytic solution. The electrolytic solution includes one or more of a dicarbonic ester compound, a dicarboxylic compound, a disulfonic compound, a monofluoro lithium phosphate, and difluoro lithium phosphate and one or more of fluorinated lithium phosphate, fluorinated lithium borate, and imide lithium. | 02-28-2013 |
20130164635 | USE OF EXPANDED GRAPHITE IN LITHIUM/SULPHUR BATTERIES - The present invention relates to a solid composite for use in the cathode of a lithium- sulphur electric current producing cell wherein the solid composite comprises 1 to 75 wt.-% of expanded graphite, 25 to 99 wt.-% of sulphur, 0 to 50 wt.-% of one or more further conductive agents other than expanded graphite, and 0 to 50 wt.-% one or more binder, based on the total amount of the solid composite, a lithium-sulphur electric current producing cell comprising (i) a cathode comprising the solid composite, (ii) an anode and (iii) an electrolyte interposed between said cathode and said anode, and a process for preparing the solid composite comprising the steps (I) preparing a slurry comprising sulphur, expanded graphite, and optionally further components in a liquid medium by dispersing the sulphur, the expanded graphite, and optionally the further components in the liquid medium; (H) casting the slurry provided in step (I) on a substrate or placing the slurry provided in step (I) into a mold; and (III) removing some or all of the liquid medium from the slurry cast in step (II) to form a solid composite. | 06-27-2013 |
20130252114 | HIGH VOLTAGE RECHARGEABLE MAGNESIUM CELLS HAVING A NON-AQUEOUS ELECTROLYTE - A electrochemical cell having an non-aqueous electrolyte is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg | 09-26-2013 |
20140038061 | MAGNESIUM BOROHYDRIDE AND ITS DERIVATIVES AS MAGNESIUM ION TRANSFER MEDIA - The electrolyte includes a magnesium salt having the formula Mg(BX | 02-06-2014 |
20140065492 | SODIUM SECONDARY BATTERY ELECTRODE AND SODIUM SECONDARY BATTERY - The present invention provides an electrode that can be used for a sodium secondary battery having a larger discharge capacity when charging and discharging are performed repeatedly than that of the prior art. This sodium secondary battery electrode contains tin (Sn) powder as an electrode active material. The electrode, particularly, further contains one or more electrode-forming agents selected from the group consisting of poly(vinylidene fluoride) (PVDF), poly(acrylic acid) (PAA), poly(sodium acrylate) (PAANa), and carboxymethylcellulose (CMC), thereby making it possible to provide a sodium secondary battery having even greater electrode performance. | 03-06-2014 |
20140154589 | CATHODE MATERIAL FOR AN ALKALI-SULFUR CELL - In a method for preparing a cathode material for an alkali-sulfur cell, e.g., a lithium-sulfur cell, at least one polyacrilonitrile-sulfur composite material and elemental sulfur are mixed, in order to increase the voltage, the capacitance and the energy density. | 06-05-2014 |
20140255794 | SULFUR CATHODE HOSTED IN POROUS ORGANIC POLYMERIC MATRICES - A composite material includes a porous organic polymer and an electrochemically active material, wherein the porous organic polymer contains a plurality of pores having a diameter of from about 0.1 nm to about 100 nm, and the electrochemically active material is disposed within the pores. | 09-11-2014 |
20140255795 | SULFUR-HYDROXYLATED GRAPHENE NANOCOMPOSITES FOR RECHARGEABLE LITHIUM-SULFUR BATTERIES AND METHODS OF MAKING THE SAME - In one embodiment, the present disclosure provides a sulfur-hydroxylated graphene nanocomposite including at least one graphene sheet with a surface and a plurality of amorphous sulfur nanoparticles homogeneously distributed on the surface. The nanocomposite substantially lacks sulfur microparticles. In other embodiments, the disclosure provides a cathode and a battery containing the nanocomposite. In still another embodiment, the disclosure provides a method of making a sulfur-hydroxylated graphene nanocomposite by exposing a hydroxylated graphene to a sulfur-containing solution for a time sufficient to allow formation of homogeneously distributed sulfur nanoparticles on a surface of the hydroxylated graphene. | 09-11-2014 |
20140287326 | ELECTROLYTES FOR LITHIUM SULFUR CELLS - Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte. The cell exhibits high utilization of the electroactive sulfur-containing material of the cathode and a high charge-discharge efficiency. | 09-25-2014 |
20140302403 | NON-AQUEOUS ELECTROLYTE FOR RECHARGEABLE MAGNESIUM ION CELL - A non-aqueous Magnesium electrolyte comprising: (a) at least one organic solvent; (b) at least one electrolytically active, soluble, inorganic Magnesium (Mg) salt complex represented by the formula: Mg | 10-09-2014 |
20140349199 | CARBORANYL MAGNESIUM ELECTROLYTE FOR MAGNESIUM BATTERY - An electrochemical device is provided having a carboranyl magnesium electrolyte. Specifically the disclosure relates to an electrochemical device having a carboranyl magnesium electrolyte which is compatible with a magnesium anode and a cathode, and on non-noble metal still having oxidative stability >3.0V vs. a magnesium reference. | 11-27-2014 |
20150010832 | CATHODES AND ELECTROLYTES FOR RECHARGEABLE MAGNESIUM BATTERIES AND METHODS OF MANUFACTURE - The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo | 01-08-2015 |
20150044577 | MAGNESIUM ION-CONTAINING ELECTROLYTE - A magnesium ion-containing electrolyte used for a magnesium cell includes magnesium, halogen, one of boron, aluminum, and phosphorous, and an organic group including OC | 02-12-2015 |
20150050563 | LITHIUM SECONDARY BATTERY ELECTROLYTIC SOLUTION AND SECONDARY BATTERY INCLUDING SAID ELECTROLYTIC SOLUTION - A new electrolytic solution system for lithium secondary batteries. Provided is a lithium secondary battery electrolytic solution containing a nonaqueous solvent and a lithium salt. The nonaqueous solvent is mixed at an amount of not more than 3 mol with respect to 1 mol of the lithium salt. | 02-19-2015 |
20160020485 | ELECTROLYTES COMPRISING METAL AMIDE AND METAL CHLORIDES FOR MULTIVALENT BATTERY - An electrolyte includes compounds of formula M | 01-21-2016 |
20160028117 | ELECTROLYTE FOR MAGNESIUM RECHARGEABLE BATTERY AND PREPARATION METHOD THEREOF - Disclosed is an electrolyte solution for a magnesium rechargeable battery with a high ionic conductivity and a wide electrochemical window compared to the conventional electrolyte solution. The electrolyte solution is prepared by dissolving magnesium metal into the ethereal solution using combinations of metal chloride catalysts. The electrolyte solution can be applied to fabricate magnesium rechargeable batteries and magnesium hybrid batteries with a markedly increased reversible capacity, rate capability, and cycle life compared to those batteries employing the conventional electrolyte solution. Also disclosed is a method for preparing the electrolyte. | 01-28-2016 |
20160149265 | NON-AQUEOUS ELECTROLYTE SOLUTION FOR SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY - To provide a flame-retardant non-aqueous electrolyte solution for secondary batteries, with which a lithium ion secondary battery excellent in the rate properties can be obtained; and a safe lithium ion secondary battery excellent in the rate properties. | 05-26-2016 |
20160204470 | MAGNESIUM BOROHYDRIDE AND ITS DERIVATIVES AS MAGNESIUM ION TRANSFER MEDIA | 07-14-2016 |
20160380268 | LOW RESISTANCE, MULTIVALENT METAL ANODES - A low resistance multivalent metal anode is provided. The metal is present in the anode as a Riecke highly active particle. Anode resistivity of 1000 Ω·cm | 12-29-2016 |