Entries |
Document | Title | Date |
20080213672 | LITHIUM ANODES FOR ELECTROCHEMICAL CELLS - Provided is an anode for use in electrochemical cells, wherein the anode active layer has a first layer comprising lithium metal and a multi-layer structure comprising single ion conducting layers and polymer layers in contact with the first layer comprising lithium metal or in contact with an intermediate protective layer, such as a temporary protective metal layer, on the surface of the lithium-containing first layer. Another aspect of the invention provides an anode active layer formed by the in-situ deposition of lithium vapor and a reactive gas. The anodes of the current invention are particularly useful in electrochemical cells comprising sulfur-containing cathode active materials, such as elemental sulfur. | 09-04-2008 |
20080248395 | Electrolyte-Electrode Joined Assembly and Method for Producing the Same - A solid electrolyte is formed, and then a paste for forming an intermediate layer is applied thereto by printing, etc. The paste contains a mixed powder of a ceria-based oxide powder and a sintering aid powder containing at least one of Al, Ca, Co, Cr, Cu, Fe, Mn, Ni, and Zn, preferably a nitrate salt thereof. It is preferred that the sintering aid content is 0.5 to 5 mol %, and the ratio of the mixed powder to the paste is 40% to 80% by weight. The paste is burned preferably at 800° C. to 1500° C., more preferably 1100° C. to 1350° C., to form the intermediate layer having a thickness of 0.5 to 3 μm. | 10-09-2008 |
20090011338 | Method of Manufacturing Lithium Secondary Battery and Lithium Secondary Battery - The invention provides a method of readily manufacturing a lithium secondary battery including a solid electrolyte layer having space for accommodating deposited lithium. A lithium secondary battery includes a positive electrode element, a negative electrode element and a solid electrolyte layer placed between them. A method of manufacturing the battery includes a first step of stacking at least a first group of particles and a second group of particles to form the solid electrolyte layer, the second group of particles having an average particle diameter larger than that of the first group of particles, and a second step of stacking the positive and negative electrode elements on the solid electrolyte layer such that the negative electrode element is in contact with a surface of the second group of particles in the solid electrolyte layer. | 01-08-2009 |
20090123846 | ALL-SOLID-STATE CELL - An all-solid-state cell contains a combination of an electrode active material and a solid electrolyte, and has a plate-shaped fired solid electrolyte body of a ceramic containing a solid electrolyte, a first electrode layer (e.g. a positive electrode) integrally formed on one surface of the fired solid electrolyte body by mixing and firing an electrode active material and a solid electrolyte, and a second electrode layer (e.g. a negative electrode) integrally formed on the other surface of the fired solid electrolyte body by mixing and firing an electrode active material and a solid electrolyte. The solid electrolyte materials added to the first electrode layer and the second electrode layer comprise an amorphous polyanion compound. | 05-14-2009 |
20090280414 | Additive for non-aqueous electrolyte and secondary battery using the same - Disclosed is an electrolyte comprising a compound having both a sulfonate group and a cyclic carbonate group. The electrolyte forms a more stable and dense SEI layer on the surface of an anode, and thus improves the capacity maintenance characteristics and lifespan characteristics of a battery. Also, disclosed is a compound represented by the following Formula 1, and a method for preparing the same by reacting 4-(hydroxyalkyl)-1,3-dioxolan-2-one with a sulfonyl halide compound: | 11-12-2009 |
20100035157 | ELECTRICAL STORAGE DEVICE - An electrical storage device has a solid electrolyte layer; and electrode assemblies stacked with the solid electrolyte layer interposed therebetween and each having a current collector on which a plurality of electrode parts are formed. A part of the solid electrolyte layer is located between successive electrode parts in a direction perpendicular to the stacking direction on at least one of successive electrode assemblies in the stacking direction. | 02-11-2010 |
20100068628 | ALL SOLID-STATE POLYMER BATTERY - An all solid-state polymer battery uses: 1) a lithium based negative electrode active material including crystal grains and crystal grain boundaries, wherein at least part of the crystal grain boundaries are exposed on a surface of the lithium-based negative electrode active material, and the area of the exposed surface of the crystal grain boundaries is 0.02 to 0.5 cm | 03-18-2010 |
20100075231 | Lead Acid Battery Slurry Comprising Polyelectrolyte Comb Copolymers - The invention provides a slurry, such as a lead-acid battery slurry, comprising a polyelectrolyte comb copolymer and lead oxide. Use of polyelectrolyte comb copolymers results in a slurry with low viscosity. In addition, the use of polyelectrolyte comb copolymers controls the growth (e.g., size, morphology and location) of the inactive species, and thus, improves battery cycle life. | 03-25-2010 |
20100104947 | ELECTROLYTE COMPOSITION AND CATALYST INK AND SOLID ELECTROLYTE MEMBRANE FORMED BY USING THE SAME - An electrolyte composition and catalyst ink, a solid electrolyte membrane formed by printing the electrolyte composition and catalyst ink, and a secondary battery including the solid electrolyte membrane. An electrolyte composition includes a solvent; a lithium salt dissolved in the solvent; and a cycloolefin-based monomer dissolved or dispersed in the solvent and a catalyst ink includes a catalyst that promotes the ring-opening and polymerization reactions of the cycloolefin monomers of the electrolyte composition. | 04-29-2010 |
20100112456 | COMPOSITE MATERIAL LAYER AND METHOD OF PRODUCING THE SAME, AND SOLID STATE BATTERY AND METHOD OF PRODUCING THE SAME - A solid state battery excellent in pressure formability is provided. A positive electrode composite material layer includes sulfide glass unheated and a positive electrode active material. The sulfide glass and the positive electrode active material are pressure-formed and in contact with each other. A negative electrode composite material layer includes sulfide glass unheated and a negative electrode active material. The sulfide glass and the negative electrode active material are pressure-formed and in contact with each other. | 05-06-2010 |
20100129722 | OXYNITRIDE SPUTTERING TARGET - A cathode sputtering target includes: between 30 and 40 atomic % of a metal, between 2 and 10 atomic % of nitrogen, and between 35 and 50 atomic % of oxygen. The remainder up to 100% is constituted by at least one element selected from the group that comprises phosphorous (P), boron (B), silicon (Si), germanium (Ge), gallium (Ga), sulphur (S) and aluminium (Al). Also provides a method of manufacturing a thin film from the target, and an electrochemical device comprising the thin film. | 05-27-2010 |
20100167130 | ELECTROCHEMICAL ENERGY SOURCE AND ELECTRONIC DEVICE PROVIDED WITH SUCH AN ELECTROCHEMICAL ENERGY SOURCE - The invention relates to an improved electrochemical energy source, comprising: a substrate, and at least one stack deposited onto said substrate, the stack comprising: an first electrode, a second electrode, and an intermediate solid-state electrolyte separating the first electrode and the second electrode. The invention also relates to an electronic device provided with such an electrochemical energy source. | 07-01-2010 |
20100216029 | Lithium Ion Secondary Battery - An overcharge suppressing agent adapted to react when the positive electrode potential becomes higher, to increase the internal resistance of a battery during overcharge in an lithium ion secondary battery in which a positive electrode capable of occluding and releasing lithium and a negative electrode capable of occluding and releasing lithium are formed by way of an electrolyte. The electrolyte contains a polymerizable compound represented by the chemical formula (1-1) or the chemical formula (1-2): | 08-26-2010 |
20100273062 | ALL-SOLID-STATE BATTERY - An all-solid-state battery includes: a positive electrode active material layer that contains a positive electrode active material, and a first sulfide solid electrolyte material that contacts the positive electrode active material and that substantially does not have a cross-linking chalcogen; a negative electrode active material layer containing a negative electrode active material; and a solid electrolyte layer that is provided between the positive electrode active material layer and the negative electrode active material layer, and that contains a second sulfide solid electrolyte material that substantially has a cross-linking chalcogen. | 10-28-2010 |
20100279176 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - There is provided a nonaqueous electrolyte secondary battery in which lithium ions can move smoothly between a positive electrode and a solid electrolyte layer, the nonaqueous electrolyte secondary battery having improved internal resistance. | 11-04-2010 |
20100291443 | AIR BREATHING LITHIUM POWER CELLS - A cell suitable for use in a battery according to one embodiment includes a catalytic oxygen cathode; a stabilized zirconia electrolyte for selective oxygen anion transport; a molten salt electrolyte; and a lithium-based anode. A cell suitable for use in a battery according to another embodiment includes a catalytic oxygen cathode; an electrolyte; a membrane selective to molecular oxygen; and a lithium-based anode. | 11-18-2010 |
20100304222 | ELECTROLYTE HAVING EUTECTIC MIXTURE AND NITRILE COMPOUND, AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME - Disclosed is an electrolyte comprising (a) a eutectic mixture of an amide compound represented by the following chemical formula 1 or 2 and an ionizable lithium salt; and (b) a nitrile compound. The eutectic mixture and the nitrile compound in the electrolyte contribute to excellent thermal and chemical stability and sufficiently low viscosity and high ion conductivity. The electrolyte can be usefully applied as an electrolyte of electrochemical devices. | 12-02-2010 |
20110003211 | ELECTRODES WITH SOLID POLYMER ELECTROLYTES - An electrode assembly that includes an electrode film and a current collector is provided. The electrode film includes electrode active material, electronically conductive particles, and a solid polymer electrolyte. In some embodiments, no additional binder is used as the solid polymer electrolyte also acts as a binder to hold together the active material and electronically conductive particles, thus creating a freestanding electrode film. Such a freestanding film makes it possible to deposit a very thin current collector layer, thus increasing specific energy and specific power for electrochemical cells in which these electrode assemblies are used. | 01-06-2011 |
20110123868 | SOLID ELECTROLYTE BATTERY, VEHICLE, BATTERY-MOUNTING DEVICE, AND MANUFACTURING METHOD OF THE SOLID ELECTROLYTE BATTERY - A purpose is to provide a solid electrolyte battery including a low-resistance solid electrolyte layer, a vehicle mounting this solid electrolyte battery, a battery-mounting device, and a manufacturing method of the solid electrolyte battery. A solid electrolyte battery | 05-26-2011 |
20110151335 | Lithium-sulfur cell and method for manufacturing - A lithium-sulfur cell comprising an anode structure, a cathode structure and an electrolyte section abutting to the cathode structure. The cathode structure comprises a continuous layer of nanotubes or nanowires and sulfur particles. The sulfur particles are attached to the nanotubes or nanowires. The continuous layer of nanotubes or nanowires abuts to at least a part of the electrolyte section. The invention further relates to a corresponding method for manufacturing the inventive cell. | 06-23-2011 |
20110171536 | Electrochemical Device - A cathode ( | 07-14-2011 |
20110177396 | ELECTRICITY STORAGE DEVICE - An object is to improve characteristics of a power storage device. The present invention relates to an electricity storage device comprising a current collector and a negative electrode-active material layer formed over the current collector. The negative electrode-active material layer includes a negative electrode comprising a first negative electrode layer in contact with the current collector; a second negative electrode layer in contact with the first negative electrode layer, having a smaller capacitance than the first negative electrode layer and containing one material selected from a nitride of lithium and a transition metal represented by Li | 07-21-2011 |
20110311880 | ACTIVE MATERIAL FOR RECHARGEABLE BATTERY - An electrochemical device, such as a magnesium-ion battery, comprises a first electrode including a first active material, a second electrode, and an electrolyte located between the first electrode and the second electrode. The electrolyte may include a magnesium compound, such as a magnesium salt. In representative examples, an improved active material includes a group | 12-22-2011 |
20120021298 | ALL-SOLID LITHIUM ION SECONDARY BATTERY AND ELECTRODE THEREFOR - The positive electrode of a solid lithium ion secondary battery including a solid electrolyte and a positive active material that includes core particles and a coated layer at least partially covering the surfaces of the core particles. The core particles comprise a layered lithium composite oxide including a metal element having an oxidation number that remains constant during charging and discharging within a voltage range from about 2 V to about 5 V. The coated layer comprises a metal compound including a metal element having an oxidation number that remains constant during charging and discharging within a voltage range from about 2 V to about 5 V. The structure of the positive active material is stable over repeated charge and discharge cycles. Interfacial reaction between the positive active material and the solid electrolyte is suppressed. The solid lithium ion secondary battery has high output power and a long lifetime. | 01-26-2012 |
20120028128 | ALL-SOLID-STATE LITHIUM BATTERY - There is provided an all-solid lithium battery having excellent output characteristics. The battery has a cathode, an electrolyte layer, and an anode. The cathode contains a cathode active material represented by formula (1) and a sulfide solid electrolyte, and the electrolyte layer contains a sulfide solid electrolyte: | 02-02-2012 |
20120094185 | SOLID ELECTROLYTE MATERIAL, ELECTRODE ELEMENT THAT INCLUDES SOLID ELECTROLYTE MATERIAL, ALL-SOLID BATTERY THAT INCLUDES SOLID ELECTROLYTE MATERIAL, AND MANUFACTURING METHOD FOR SOLID ELECTROLYTE MATERIAL - A solid electrolyte material that can react with an electrode active material to forms a high-resistance portion includes fluorine. | 04-19-2012 |
20120115039 | All Solid Secondary Battery and Manufacturing Method Therefor - A solid secondary battery that includes a positive electrode layer, a solid electrolyte layer including an oxide-based solid electrolyte, and a negative electrode layer. At least one of the positive electrode layer and the negative electrode layer, and the solid electrolyte layer are joined by sintering. At least one of the positive electrode layer and the negative electrode layer includes an electrode active material, and a conductive agent containing a carbon material, and the conductive agent includes a carbon material which has a specific surface area of 1000 m | 05-10-2012 |
20120231345 | NONAQUEOUS ELECTROLYTE BATTERY AND SOLID ELECTROLYTE FOR NONAQUEOUS ELECTROLYTE BATTERY - Provided are a nonaqueous electrolyte battery that can suppress internal short circuits due to growth of dendrites from a negative electrode and has high charge-discharge cycle capability; and a solid electrolyte with which the charge-discharge cycle capability of a nonaqueous electrolyte battery can be improved by using the solid electrolyte as a solid electrolyte layer of the nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a solid electrolyte layer interposed between these electrodes, wherein the solid electrolyte layer includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur. The solid electrolyte for a nonaqueous electrolyte battery includes a high-sulfur-content portion containing 10 mol % or more of elemental sulfur. | 09-13-2012 |
20130059209 | POSITIVE-ELECTRODE BODY FOR NONAQUEOUS-ELECTROLYTE BATTERY, METHOD FOR PRODUCING THE POSITIVE-ELECTRODE BODY, AND NONAQUEOUS-ELECTROLYTE BATTERY - Provided is a positive-electrode body for a nonaqueous-electrolyte battery in which formation of high-resistance layers at the contact interfaces between positive-electrode active-material particles and solid-electrolyte particles is suppressed so that an increase in the interface resistance is suppressed. A positive-electrode body | 03-07-2013 |
20130065134 | NONAQUEOUS-ELECTROLYTE BATTERY AND METHOD FOR PRODUCING THE SAME - Provided are a Li-ion battery (nonaqueous-electrolyte battery) | 03-14-2013 |
20130084504 | MICROMACHINED ELECTROLYTE SHEET - The disclosure relates to ceramic lithium ion electrolyte membranes and processes for forming them. The ceramic lithium electrolyte membrane may comprise at least one ablative edge. Exemplary processes for forming the ceramic lithium ion electrolyte membranes comprise fabricating a lithium ion electrolyte sheet and cutting at least one edge of the fabricated electrolyte sheet with an ablative laser. | 04-04-2013 |
20130095388 | LIQUID HYDROPHOBIC PHASE TRANSITION SUBSTANCE, AND BATTERY COMPRISING SAME - A liquid hydrophobic phase transition substance is provided that may improve the safety of a battery and restrain the deterioration in performance of the battery without deteriorating the properties of the battery. The liquid hydrophobic phase transition substance includes a hydrophobic salt having a melting point of 80° C. or more and a hydrophilic salt of an alkali or an alkaline earth. | 04-18-2013 |
20130143128 | NONAQUEOUS-ELECTROLYTE BATTERY AND METHOD FOR PRODUCING THE SAME - Provided are a nonaqueous-electrolyte battery in which short circuits between the positive- and negative-electrode layers can be suppressed with certainty and a method for producing the battery. A nonaqueous-electrolyte battery | 06-06-2013 |
20130157143 | ELECTRODE FOR SOLID-STATE BATTERIES AND METHOD OF PREPARING THE ELECTRODE, SOLID-STATE BATTERY CONTAINING THE ELECTRODE, AND BONDING FILM USED FOR PREPARING THE ELECTRODE - Provided are an electrode for solid-state batteries, a method of preparing the electrode, a solid-state battery including the electrode, and a bonding film used for the method of preparing the electrode. The electrode for solid-state batteries include a bonding layer interposed between an electrode layer and a current collecting member and bound to the electrode layer, where the bonding layer includes a first binder which is inactive to the solid electrolyte, a second binder which has a stronger binding ability to the current collecting member than a bonding strength of the first binder to the current collecting member; and a bonding layer conductive material. | 06-20-2013 |
20130260258 | ELECTRODE BODY AND ALL SOLID STATE BATTERY - The problem of the present invention is to provide an electrode body excellent in cycling characteristics, which restrains interface resistance from increasing with time. The present invention solves the above-mentioned problem by providing an electrode body comprising: an electrode active material comprising an oxide, a first solid electrolyte material comprising a sulfide, and a second solid electrolyte material disposed at an interface between the electrode active material and the first solid electrolyte material, wherein a difference between electronegativity of a skeleton element in the second solid electrolyte material and electronegativity of an oxygen element is smaller than a difference between electronegativity of a skeleton element bonded to a sulfur element in the first solid electrolyte material and electronegativity of an oxygen element. | 10-03-2013 |
20130302698 | NONAQUEOUS ELECTROLYTE BATTERY - Provided is a nonaqueous electrolyte battery that has a high capacity and a high volume power density and can have an enhanced charge-discharge cycle capability. The nonaqueous electrolyte battery includes a positive-electrode layer, a negative-electrode layer, and a solid-electrolyte layer disposed between these layers. The negative-electrode layer contains a powder of a negative-electrode active material and a powder of a solid electrolyte. In the negative-electrode active material, a charge-discharge volume change ratio is 1% or less and the powder has an average particle size of 8 μm or less. The solid-electrolyte layer is formed by a vapor-phase process. Examples of the negative-electrode active material having a charge-discharge volume change ratio of 1% or less include Li | 11-14-2013 |
20130309580 | COATED ACTIVE MATERIAL, BATTERY, AND METHOD FOR PRODUCING COATED ACTIVE MATERIAL - The problem of the present invention is to provide a coated active material capable of restraining interface resistance from increasing. The present invention solves the above-mentioned problem by providing a coated active material used for a battery, including an active material and a coating layer for coating the above-mentioned active material, characterized in that the above-mentioned coating layer includes a substance containing a tungsten element. | 11-21-2013 |
20130316249 | INORGANIC MAGNESIUM SOLID ELECTROLYTE, MAGNESIUM BATTERY, AND METHOD FOR PRODUCING INORGANIC MAGNESIUM SOLID ELECTROLYTE - A magnesium battery | 11-28-2013 |
20140057180 | ELECTRODE BODY, ALL SOLID STATE BATTERY, AND METHOD FOR PRODUCING COATED ACTIVE MATERIAL - The problem of the present invention is to provide an electrode body in which electron conductivity of a coated active material improves and reaction resistance decreases. The present invention solves the above-mentioned problem by providing an electrode body comprising a coated active material having an oxide active material and a coat layer for coating the surface of the above-mentioned oxide active material, containing an oxide solid electrolyte material, and a sulfide solid electrolyte material contacting with the above-mentioned coated active material, characterized in that the above-mentioned coat layer contains a conductive assistant. | 02-27-2014 |
20140087270 | COATED ACTIVE MATERIAL AND LITHIUM SOLID STATE BATTERY - The problem of the present invention is to provide a coated active material having a soft coating layer and capable of improving a contact area. The present invention solves the above-mentioned problem by providing a coated active material comprising a cathode active material and a coating layer for coating the above-mentioned cathode active material, containing an Li ion conductive oxide, wherein the above-mentioned coating layer further contains lithium carbonate. | 03-27-2014 |
20140127588 | SOLID ELECTROLYTE MATERIAL, SOLID STATE BATTERY, AND METHOD FOR PRODUCING SOLID ELECTROLYTE MATERIAL - A main object of the present invention is to provide a solid electrolyte material having excellent electron conductivity. The present invention solves the problem by providing the solid electrolyte material including: a solid electrolyte particle; and a carbon coating layer formed on a surface of the solid electrolyte particle. | 05-08-2014 |
20140154584 | SULFIDE-BASED SOLID BATTERY - An object of the present invention is to provide a sulfide-based solid battery which has high charge-discharge capacity especially under high current density conditions. Disclosed is a sulfide-based solid battery including a positive electrode, a negative electrode and a sulfide-based solid electrolyte layer, the sulfide-based solid electrolyte layer being present between the positive electrode and the negative electrode, wherein the negative electrode includes at least a negative electrode active material layer; wherein the negative electrode active material layer includes negative electrode active material fine particles and sulfide-based solid electrolyte fine particles; and wherein the ratio of average particle diameter r | 06-05-2014 |
20140178768 | ALL SOLID STATE BATTERY AND PRODUCING METHOD THEREFOR - The present invention provides an all solid state battery for inhibiting interface resistance between a cathode active material and a solid electrolyte material. The invention solves the problem by providing a solid state battery comprising a cathode active material layer, an anode active material layer and a solid electrolyte layer formed between the cathode active material layer and the anode active material layer, wherein at least one said cathode active material layer and solid electrolyte layer contains a sulfide solid electrolyte material, a reaction inhibition portion containing a first ion conductor and a second ion conductor formed on the surface of the cathode active material, the first ion conductor is a lithium compound with ion conductance of 1.0×10 | 06-26-2014 |
20140193717 | SOLID ELECTROLYTE, MANUFACTURING METHOD OF SOLID ELECTROLYTE, BATTERY AND BATTERY PACK - According to one embodiment, a solid electrolyte includes a sintered body of ceramic grains. The sintered body includes a crystal plane having an ion conducting path. The crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte. | 07-10-2014 |
20140205910 | Electrode Which Has Been Coated With A Solid Ion Conductor Which Has A Garnet-Like Crystal Structure And Has The Stoichiometric Composition L7+XAXG3-XZr2O12 - The invention is directed to an electrode which has been coated with the solid ion conductor which has a garnet-like crystal structure and has the stoichiometric composition L | 07-24-2014 |
20140205911 | PARTICLES CONTAINING A NON-CONDUCTING OR SEMI-CONDUCTING NUCLEUS COVERED WITH A HYBRID CONDUCTING LAYER, THEIR PROCESSES OF PREPARATION AND USES IN ELECTROCHEMICAL DEVICES - Mixture of particles comprising a non-conducting or semi-conducting nucleus covered with a hybrid conductor coating and hybrid conductor chains located between the particles of the mixture to constitute a conductivity network, that is prepared by mechanical crushing. Due to a very good conductivity of the network, a low resistivity, a very good capacity under elevated current and/or a good density of energy, these mixtures of particles are advantageously incorporated in anodes and cathodes of electrochemical generators, resulting in highly performing electrochemical systems. | 07-24-2014 |
20140212767 | SOLID BATTERY AND METHOD FOR MANUFACTURING THE SAME - Provided is a solid battery which can improve output power and a method for manufacturing the solid battery, the present invention is a solid battery including an electrode body having a cathode layer, an anode layer, and a solid electrolyte layer disposed between the cathode layer and the anode layer and containing a sulfide-based solid electrolyte, wherein the cathode layer and the anode layer are connected via a removable conductive member, and a method for manufacturing the solid battery including the steps of: producing the electrode body; and connecting the cathode layer and the anode layer via the removable conductive member. | 07-31-2014 |
20140234725 | METHOD FOR PRODUCING NONAQUEOUS-ELECTROLYTE BATTERY AND NONAQUEOUS-ELECTROLYTE BATTERY - Provided is a method for producing a nonaqueous-electrolyte battery. A positive-electrode body | 08-21-2014 |
20140287324 | ELECTROLYTE-COATED CATHODE ACTIVE MATERIAL PARTICLES, ALL SOLID STATE BATTERY, AND METHOD FOR PRODUCING ELECTROLYTE-COATED CATHODE ACTIVE MATERIAL PARTICLES - A main object of the present invention is to provide electrolyte-coated cathode active material particles capable of increasing the discharge capacity of an all solid state battery and of enhancing the battery efficiency. In the present invention, the above object is achieved by providing electrolyte-coated cathode active material particles including cathode active material particles, and a sulfide solid electrolyte layer formed on the surface of the cathode active material particles. | 09-25-2014 |
20140315098 | SOLID ELECTROLYTE MICROPARTICLE PRODUCTION METHOD - A method for producing solid electrolyte microparticles includes steps of: a preparation step of preparing a solid electrolyte solution by dissolving a solid electrolyte material in a good solvent; and a precipitation step of precipitating solid electrolyte microparticles by mixing the solid electrolyte solution into a poor solvent whose solubility to the solid electrolyte material is lower than that of the good solvent, wherein in the precipitation step, the solid electrolyte solution is mixed into the poor solvent such that in the mass ratio m:n between the mass “m” of the solid electrolyte solution and the mass “n” of the poor solvent, the proportion of the mass “n” of the poor solvent is increased to adjust the mass ratio to be higher than or equal to the mass ratio at which the solid electrolyte microparticles are precipitated. | 10-23-2014 |
20140315099 | ZINC SECONDARY BATTERY - Provide is a zinc secondary battery capable of preventing a short circuit between the positive and negative electrodes caused by zinc dendrites. The zinc secondary battery of the present invention comprises a positive electrode; a negative electrode containing zinc; an electrolytic solution in which the positive electrode and the negative electrode are immersed or with which the positive electrode and the negative electrode are in contact, wherein the electrolytic solution is an aqueous solution containing an alkali metal hydroxide; and a separator being placed between the positive electrode and the negative electrode and separating the positive electrode and the negative electrode from each other, wherein the separator comprises an inorganic solid electrolyte body having hydroxide ion conductivity. | 10-23-2014 |
20140356731 | SECONDARY BATTERY - In a secondary battery, a negative electrode, an electrolytic solution for negative electrode, a diaphragm, an electrolytic solution for positive electrode, and a positive electrode are disposed in order. The negative electrode includes a negative-electrode active material that has an element whose oxidation-reduction potential is more “base” by 1.5 V or more than an oxidation-reduction potential of hydrogen, and whose volume density is larger than that of lithium metal. The diaphragm includes a solid electrolyte transmitting ions of said element alone. A secondary battery with high volumetric density is provided. | 12-04-2014 |
20150024280 | POSITIVE ELECTRODE ACTIVE MATERIAL PARTICLES, AND POSITIVE ELECTRODE AND ALL-SOLID-STATE BATTERY USING SAME - In a battery production process, a positive electrode active material having a reaction-suppressing layer that does not easily peel off formed on the surface thereof, and a positive electrode and an all-solid-state battery that use said material are provided. The present invention involves positive electrode active material particles for an all-solid-state battery containing sulfide-based solid electrolyte. The positive electrode active material particles are an aggregate containing two or more particles. The surface of the aggregate is coated with a reaction-suppressing layer for suppressing reactions with the sulfide-based solid electrolyte. | 01-22-2015 |
20150086874 | ELECTROCHEMICAL DEVICE - An electrochemical device manufactured using an electrode layer in which severe increase of electrode resistance is prevented and/or a solid electrolyte layer in which severe decrease of ion conductivity of a solid electrolyte is prevented is provided. The electrochemical device includes a pair of electrode layers, and a solid electrolyte layer provided between the pair of electrode layers, wherein at least one layer of the electrode layers and the solid electrolyte layer is composed of first particles each providing a function of the at least one layer, second particles and a binder which is composed of an organic polymer and binds the first and second particles, and wherein the at least one layer is formed from a mixture material containing the first particles and binder particles, each of the binder particles including the second particle and the binder carried on at least a part of a surface thereof. | 03-26-2015 |
20150093651 | LITHIUM BATTERY AND METHOD OF PREPARING CATHODE ACTIVE MATERIAL FOR THE LITHIUM BATTERY - A lithium battery and a method of preparing the lithium battery, wherein the lithium battery includes: a cathode layer including a cathode active material including a core, and an ion conductive phosphate coating layer on a surface of the core; an anode layer; and a solid electrolyte layer that is disposed between the cathode layer and the anode layer, wherein the solid electrolyte layer includes a sulfide solid electrolyte. | 04-02-2015 |
20150111110 | SOLID ELECTROLYTE AND SECONDARY BATTERY - A solid electrolyte has a sheet shape, and is composed of an oxide sintered body. The solid electrolyte includes a layer-shaped dense portion whose sintered density is 90% or more, and a porous portion formed on a superficial side of the solid electrolyte so as to be continuous from at least one of opposite surfaces of the dense portion, and having a porosity of 50% or more. A secondary battery includes a positive electrode, and a negative electrode, the positive electrode and negative electrode arranged at opposite facing positions interposing the solid electrolyte. | 04-23-2015 |
20150147659 | ALL-SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING THE SAME - An all-solid-state battery including a cathode layer, an anode layer, and an electrolyte layer arranged between the cathode layer and the anode layer, the electrolyte layer including a first solid electrolyte layer including a sulfide solid electrolyte, and a second solid electrolyte layer other than the first solid electrolyte layer, the electrolyte layer including the sulfide solid electrolyte. Also provided is a method for manufacturing an all-solid-state battery including the steps of (a) making a cathode layer, (b) making an anode layer, (c) making an electrolyte layer including a first solid electrolyte layer including a sulfide solid electrolyte and a second solid electrolyte including the sulfide solid electrolyte, and (d) layering the cathode layer, the electrolyte layer, and the anode layer, such that the electrolyte layer is arranged between the cathode layer and the anode layer. | 05-28-2015 |
20150325844 | CATHODE FOR SECONDARY BATTERIES, METHOD FOR PRODUCING CATHODE FOR SECONDARY BATTERIES, AND ALL-SOLID-STATE SECONDARY BATTERY - To provide: a cathode for secondary batteries, which has a high capacity retention rate; a method for producing a cathode for secondary batteries; and an all-solid-state secondary battery comprising the cathode. This object has been achieved providing by a cathode for secondary batteries, which is characterized by comprising a cathode active material layer containing at least a cathode active material and a solid electrolyte, wherein the cathode active material has an oil absorption amount of 35 to 50 ml per 100 g; wherein the solid electrolyte has an average particle diameter of 1.5 to 2.5 μm; and wherein the cathode active material layer is formed by mixing the cathode active material and the solid electrolyte in the absence of solvent and pressure-forming the resulting mixture. | 11-12-2015 |
20150349379 | MANUFACTURING METHOD FOR ALL-SOLID-STATE BATTERY AND ALL-SOLID-STATE BATTERY - A manufacturing method for an all-solid-state battery including a positive electrode layer, a negative electrode layer, a solid electrolyte layer, a positive electrode current collector layer, and a negative electrode current collector layer is provided. At least one of the positive and negative electrode layers is an electrode layer containing a sulfide-based solid electrolyte and having a first main surface and a second main surface. The manufacturing method includes: shielding at least a central portion of the first main surface and at least a central portion of the second main surface from an ambient atmosphere; and exposing an outer peripheral portion of the electrode layer to an atmosphere having a dew-point temperature of −30° C. or higher, with at least the central portion of the first main surface and at least the central portion of the second main surface shielded from the atmosphere. | 12-03-2015 |
20150357674 | All-Solid Battery and Method for Manufacturing the Same - An all-solid battery that includes a negative electrode layer, a positive electrode layer, a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, a negative electrode current collector connected to the negative electrode layer, and a positive electrode current collector connected to the positive electrode layer, wherein the negative electrode layer contains a sulfide solid electrolyte, the negative electrode current collector contains a metal that reacts with the sulfide solid electrolyte, a sulfur compound layer that contains a sulfur compound generated by a reaction of the sulfide solid electrolyte and the metal is present between the negative electrode layer and the negative electrode current collector, charge capacity when constant current charge was conducted up to 3.6 V at 0.3 C or more and 3.6 C or less in an initial charge after preparation of the all-solid battery is 50 mAh/g or more and 90 mAh/g or less. | 12-10-2015 |
20150372344 | COMPOSITE ACTIVE MATERIAL, MANUFACTURING METHOD FOR COMPOSITE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING COMPOSITE ACTIVE MATERIAL - A composite active material including composite particles and a sulfide-based solid electrolyte is proposed. The composite particles contain active material particles and an oxide-based solid electrolyte. The active material particles contain at least any one of a cobalt element, a nickel element and a manganese element and further contain a lithium element and an oxygen element. The oxide-based solid electrolyte coats all or part of a surface of each of the active material particles. The sulfide-based solid electrolyte further coats 76.0% or more of a surface of each of the composite particles. | 12-24-2015 |
20150380763 | SOLID STATE LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - A solid state lithium secondary battery in which occurrence of a short circuit at the time of charging is suppressed. The object is attained by providing a solid state lithium secondary battery comprising an anode current collector, a solid electrolyte layer, a cathode active material layer, and a cathode current collector in this order, wherein the solid electrolyte layer is provided on the surface of the anode current collector, the solid electrolyte layer contains sulfide solid electrolyte particles, the thickness of the solid electrolyte layer is 50 μm or less, the outer periphery of the anode current collector is formed inwardly of the outer periphery of the solid electrolyte layer when viewed in a planar view, and the distance between the outer periphery of the solid electrolyte layer and the outer periphery of the anode current collector is 300 μm or more. | 12-31-2015 |
20150380765 | SOLID ELECTROLYTE AND ALL-SOLID STATE ION SECONDARY BATTERY USING THE SAME - To provide both resistance to reduction and high ion conductivity, a solid electrolyte includes a crystal having a structure expressed as A | 12-31-2015 |
20160020487 | POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME - A positive electrode for a lithium ion secondary battery, the positive electrode including: a coated particle including a positive active material particle and a reactive layer on the surface of the positive active material particle; and a sulfide-containing solid electrolyte particle which is in contact with the coated particle, wherein the reactive layer includes a reactive element other than lithium and oxygen, wherein the reactive element has a reactivity with the sulfide-containing solid electrolyte particle which is greater than with a reactivity of the reactive element with a transition metal element included in the positive active material particle, and wherein a ratio of a thickness of the reactive layer to a particle diameter of the positive active material particle is in a range of about 0.0010 to about 0.25. | 01-21-2016 |
20160028103 | ELECTRODE ASSEMBLY, LITHIUM BATTERY, AND METHOD FOR PRODUCING ELECTRODE ASSEMBLY - A precursor of a solid electrolyte is melted at a temperature lower than the melting point of an active material, a liquid electrolyte material is placed on a surface of an active material molded body having voids among multiple active material particles of the active material, and the liquid electrolyte material is solidified, whereby a solid electrolyte layer is formed. | 01-28-2016 |
20160028105 | Cubic Ionic Conductor Ceramics for Alkali Ion Batteries - The present disclosure relates to novel compositions, electrodes, electrochemical storage devices (batteries) and ionic conduction devices that use cubic ionic conductor (“CUBICON”) compounds, such as nitridophosphate compounds. The cubic ionic conductor compound have a framework formula [MT | 01-28-2016 |
20160036091 | SOLID LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME - An object of the present invention is to provide a solid lithium secondary battery in which occurrence of short-circuit is suppressed during charging. The object is attained by providing a solid lithium secondary battery comprising an anode current collector, a solid electrolyte layer, a cathode active material layer, and a cathode current collector in this order, wherein the solid electrolyte layer is provided on a surface of the anode current collector, the solid electrolyte layer contains a sulfide solid electrolyte particle, a surface shape of the solid electrolyte layer, which faces the anode current collector, is formed in correspondence with a surface shape of the anode current collector, and 10-point average roughness (R | 02-04-2016 |
20160156021 | POSITIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY INCLUDING THE SAME | 06-02-2016 |
20180026299 | Method of Manufacturing High-Density Solid Electrolyte Thin Film Using Room-Temperature High-Speed Powder Spray Method | 01-25-2018 |
20180026300 | LITHIUM ION CONDUCTOR, SOLID ELECTROLYTE LAYER, ELECTRODE, BATTERY, AND ELECTRONIC DEVICE | 01-25-2018 |
20190148765 | METHOD FOR PRODUCTION OF ALL-SOLID-STATE BATTERY | 05-16-2019 |