Patent application number | Description | Published |
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 |
20150096169 | SLURRY FOR POSITIVE ELECTRODE FOR SULFIDE-BASED SOLID-STATE BATTERY, POSITIVE ELECTRODE FOR SULFIDE-BASED SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING THE SAME, AND SULFIDE-BASED SOLID-STATE BATTERY AND METHOD FOR MANUFACTURING THE SAME - A slurry for a positive electrode for a sulfide-based solid-state battery contains at least a fluorine-based copolymer containing vinylidene fluoride monomer units, a positive electrode active material, and a solvent or a dispersion medium. When a dry volume of the slurry is set to 100% by volume, a content ratio of the fluorine-based copolymer is 1.5 to 10% by volume. | 04-09-2015 |
20150134172 | CHARGING SYSTEM FOR ALL-SOLID-STATE BATTERY - An objective of the present invention is to provide a charging system, capable of increasing the rapid charging capacity of an on-vehicle all-solid-state battery, and reducing the effect of confining pressure on the all-solid-state battery. This is achieved by a charging system for an all-solid-state battery to be mounted in a vehicle, the charging system comprising: a charging section that charges an all-solid-state battery, a pressing section that applies confining pressure to the all-solid-state battery, and a pressure control section that controls the confining pressure, wherein the pressure control section directs the pressing section so that the confining pressure during charging is higher than the confining pressure during discharging. | 05-14-2015 |
20150180076 | MANUFACTURING METHOD OF ALL-SOLID BATTERY - A manufacturing method of an all-solid battery includes fabricating a single battery including a positive electrode layer, a negative electrode layer, and a solid electrolyte layer arranged between the positive electrode layer and the negative electrode layer; fabricating a plurality of battery packs including the plurality of single batteries; confining a plurality of battery packs by an equal confining pressure; measuring the electrical characteristics of the plurality of confined battery packs; determining the battery pack whose measured electrical characteristics are the worst of the plurality of battery packs; reducing the confining pressures of the other battery packs so that the electrical characteristics of the other battery packs are equal to that of the battery pack whose electrical characteristics have been determined to be the worst; and electrically connecting in parallel the battery packs. | 06-25-2015 |
20150255998 | CONTROL DEVICE OF BATTERY CHARGING - A main object of the present invention is to provide a control device of battery charging capable of quickly charging a battery to an intended capacity while inhibiting occurrence of defect in the battery, the control device including a first output unit outputting a heating signal to heat a battery, a second output unit outputting a charging signal to charge the battery heated according to the heating signal, and a controller judging whether or not a degree of degradation of the battery is a first value or more, wherein where the controller judges the degree of degradation to be the first value or more, the controller controls the heating signal to make the charging rate of the battery whose degree of degradation is the first value or more equal to or closer to a charging rate of the battery when the degree of degradation is less than the first value. | 09-10-2015 |
20150270585 | SOLID-STATE BATTERY AND METHOD FOR PRODUCING THE SAME, AND ASSEMBLED BATTERY AND METHOD FOR PRODUCING THE SAME - A solid-state battery comprising a stack including at least one unit cell including a positive electrode layer including a positive electrode active material, a negative electrode layer including a negative electrode active material, and a solid electrolyte layer laminated between the positive and negative electrode layers, and an outer covering accommodating the stack, wherein the solid-state battery further including a pressure receiving member provided on at least a part of a periphery of the outer covering, and wherein the pressure receiving member has a thickness of less than a total thickness of the stack and the outer covering in a stacking direction of the unit cell. | 09-24-2015 |
20150311507 | COMPOSITE ACTIVE MATERIAL, SOLID STATE BATTERY AND METHOD FOR PRODUCING COMPOSITE ACTIVE MATERIAL - The problem to be solved by the present invention is to provide a composite active material having favorable electron conductivity. The present invention solves the problem by providing a composite active material comprising an active material, a coat layer with an average thickness of less than 100 nm, formed on a surface of the active material and composed of an ion conductive oxide, and carbon particles penetrating the coat layer, formed on a surface of the active material. | 10-29-2015 |
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 |