Toyota Jidosha Kabushiki Kaisha

Hiroshi Nagase

Shigenori Hama

Yasushi Tsuchida

Yukiyoshi Ueno

Masato Kamiya

Hirofumi Nakamoto

Koji Kawamoto

Hirokazu Kawaoka

Tatsuya Hashimoto

Norihiro Ose

Masahiro Tatsumisago

Yasuyuki Tamane

Takamasa Ohtomo

Akitoshi Hayashi

Satoshi Wakasugi

Masashi Kodama

Yoichi Ogura

Hisatsugu Yamasaki

Tsubasa Migita

Yukinari Kotani

Shigeki Sato

Koji Kinoshita

Haruhisa Hirokawa

Daisuke Mukai

A vehicle includes a battery including an all-solid-state battery configured to be externally chargeable with electric power supplied from outside of the vehicle, a heater configured to heat the battery, and a control device configured to control the heater. The control device controls the heater such that when a predetermined condition related to the external charging is satisfied, the temperature of the battery during execution of the external charging is higher than when the predetermined condition is not satisfied. The predetermined condition includes a condition that an elevation of the vehicle during the execution of the external charging is higher than a predetermined height.

Vehicle and vehicle control method

To provide an anode mixture configured to, when used in an all-solid-state battery, decrease the resistance of the all-solid-state battery and increase the charging performance of the all-solid-state battery, wherein the anode mixture is an anode mixture for an all-solid-state battery comprising an anode comprising an anode mixture layer; wherein the anode mixture contains a first anode active material and a second anode active material; and wherein a difference between a reaction potential of the first anode active material with respect to lithium metal and a reaction potential of the second anode active material with respect to lithium metal, is 1.0 V or more.

Anode mixture

One aspect of the present invention provides a sulfide solid-state battery provided with: a negative electrode collector containing copper; a negative electrode mix layer disposed on the negative electrode collector, and containing a negative electrode active material; a positive electrode mix layer containing a positive electrode active material; a sulfide solid electrolyte layer sandwiched between the negative electrode mix layer and the positive electrode mix layer, and having a protruding portion that protrudes from a peripheral edge of the negative electrode mix layer and extends up to the negative electrode collector; and a reference electrode disposed in the protruding portion.

Sulfide solid-state battery and sulfide solid-state battery system provided with same

A method of manufacturing a negative electrode for a nonaqueous electrolyte secondary battery, the method includes mixing negative electrode active material particles and ferroelectric particles with each other to form first composite particles in which the ferroelectric particles are attached to the negative electrode active material particles; mixing the first composite particles and a binder with each other to form granulated particles; applying pressure to an aggregate of the granulated particles to form a sheet-shaped negative electrode mixture layer; and arranging the negative electrode mixture layer on a main surface of a negative electrode current collector foil.

Method of manufacturing negative electrode for nonaqueous electrolyte secondary battery

A problem of the present invention is to provide a lithium solid battery in which generation of short-circuits caused by dendrite is inhibited. The present invention solves the problem by providing a lithium solid battery comprising a solid electrolyte layer having a sulfide glass containing an ion conductor which has a Li element, a P element and a S element, and having an average pore radius calculated by mercury press-in method being 0.0057 &#x3bc;m or less.

Lithium solid battery, lithium solid battery module, and producing method for lithium solid battery

The main object of the present invention is to provide a lithium solid state secondary battery system capable of restoring the decrease of output characteristics of a lithium solid state secondary battery without deteriorating an anode. The present invention attains the above-mentioned object by providing a lithium solid state secondary battery system including a lithium solid state secondary battery and an overdischarge treating unit, wherein an anode active material layer of the above-mentioned lithium solid state secondary battery contains an anode active material and a sulfide solid electrolyte material containing Li, A (A is at least one kind of P, S, Ge, Al and B) and S and having an ortho-composition, and the above-mentioned anode current collector includes a metal.

Lithium solid state secondary battery system

The main object of the present invention is to provide a cathode active material capable of reducing the initial interface resistance against a solid electrolyte material. The present invention solves the above-mentioned problems by providing a cathode active material comprising a cathode active substance exhibiting strong basicity and a coat layer formed so as to cover the surface of the above-mentioned cathode active substance and provided with a polyanionic structural part exhibiting acidity.

Cathode active material, cathode active material layer, all solid state battery and producing method for cathode active material

The main object of the present invention is to provide an all solid state battery suitable for high rate charging. The present invention solves the problem by providing an all solid state battery including a battery element having 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, characterized in that the anode active material layer contains graphite as an anode active material and a sulfide solid electrolyte, the graphite has a hardness of 0.36 GPa or more by a nanoindentation method, and the battery element is confined at a pressure more than 75 kgf/cm.

All solid state battery

The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material obtained by using a raw material composition containing LiS and sulfide of an element of the fourteenth family or the fifteenth family, characterized by not substantially containing cross-linking sulfur and LiS.

Sulfide solid electrolyte material

A solid electrolyte material that can react with an electrode active material to forms a high-resistance portion includes fluorine.

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 sulfide-based solid electrolyte cell which can efficiently detect its deterioration, a cell pack equipped with the cell, a vehicle system equipped with the cell pack, and a method for detecting hydrogen sulfide. A sulfide-based solid electrolyte cell including at least one or more power generation units each including a positive electrode, a negative electrode and an electrolyte present between the positive and negative electrodes, and a cell case which houses the power generation units, wherein at least one of the positive electrode, negative electrode and electrolyte includes a sulfur material, and wherein at least one of a current collector which constitutes a charging and discharging path, a lead which constitutes a charging and discharging path, and a lead which is connected to a circuit that is attached to the charging and discharging path, includes a material which chemically reacts with hydrogen sulfide to change electrical resistance.

Vehicle system and method for detecting hydrogen sulfide

The present invention is a battery comprising: a power section containing a sulfur-based material; a distinguishing section which discolors by chemical reaction with hydrogen sulfide; and an exterior body incorporating the power section and the distinguishing section, the distinguishing section being observable from outside the exterior body. By checking discoloration of the distinguishing section or the distinguishing means, it is possible to easily detect the presence or absence of hydrogen sulfide in the battery and then judge deterioration of the battery with non-destructive inspection.

Battery and battery system

The main object of the present invention is to provide a method for producing an all solid lithium battery, capable of easily performing dew point control in a battery assembly step. The present invention solves the above-mentioned problems by providing a method for producing an all solid lithium battery, comprising the steps of: preparing a material composition by adding LiS, PS, and POso as to satisfy a relation of (LiS)/(PS+PO)&#x3c;3 on a molar basis, synthesizing a sulfide solid electrolyte from the above-mentioned material composition by a vitrification means, and assembling an all solid lithium battery in an atmosphere having a dew-point temperature of &#x2212;60&#xb0; C. or more while using the above-mentioned sulfide solid electrolyte.

Method for producing all solid lithium 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.

All solid state battery containing an electrolyte comprising chalcogens

It is a major object of the invention to provide a method for processing a battery member, by which a cathode active material and a sulfide solid electrolyte material can be efficiently separated from each other and the cathode active material and Li contained in the sulfide solid electrolyte material can be efficiently recovered. To achieve the object, the present invention provides a method for processing a battery member containing at least a Li-containing cathode active material and a Li-containing sulfide solid electrolyte material, comprising the steps of: bringing the battery member into contact with a process solution to generate hydrogen sulfide as well as to dissolve the Li contained in the sulfide solid electrolyte material in the process solution; recovering the cathode active material as an insoluble component from the process solution containing the Li dissolved therein; and recovering a Li compound from the process solution, from which the cathode active material as an insoluble component is recovered.

Growing community of inventors

Susono, Japan

Hiroshi Nagase