Abstract: A regeneration method of an all-solid-state battery includes a step of preparing an all-solid-state battery having a cathode that does not contain copper, and a step of executing overdischarge control of the all-solid-state battery. The overdischarge control is control of mitigating reaction variance that is variance in electrode reaction due to charging and discharging of the all-solid-state battery, by discharging the all-solid-state battery until a potential of the cathode becomes lower than an elution potential of copper.

Abstract: The present disclosure has an object of providing an electrode active material composite particle having a small expansion due to charging, a solid-state battery comprising such an electrode active material composite particle, a method for manufacturing such an electrode active material composite particle, and a method for manufacturing a solid-state battery comprising manufacturing such an electrode active material composite particle. The electrode active material composite particle of the present disclosure comprises a silicon particle and a fibrous conductive material. In the electrode active material composite particle of the present disclosure, the fibrous conductive material is localized inside the electrode active material composite particle.

Abstract: The control device executes a process including a step of acquiring a detection value from each surface pressure sensor when charging is in progress, a step of specifying a corresponding partially pressing unit when it is determined that there is a portion where the reaction is uneven, a step of outputting a pressing command, a step of determining whether or not pressing is completed, and a step of outputting a pressing cancel command when it is determined that pressing is completed.

Abstract: An all-solid-state battery system includes an assembled battery configured by connecting a plurality of cells, and a control device that performs charge control and discharge control of the assembled battery. Each of the plurality of cells is an all-solid-state battery. The control device is configured to perform an equalization process of evenly approximating the amount of stored electricity between the cells in the plateau region in the relationship between the voltage and the amount of stored electricity of the assembled battery in the charge control or the discharge control of the assembled battery.

Abstract: The control device executes a process including a step of acquiring a detected value from each surface pressure sensor when charging is in progress, a step of specifying a corresponding partial pressurizing unit when it is determined that there is a reaction uneven portion, a step of outputting a pressurization command, a step of determining whether or not pressurization is completed, and a step of outputting a pressurization release command when it is determined that pressurization is completed.

Abstract: A battery system includes a control device. The control device is configured to perform a first control and a second control. The first control includes placing an all-solid-state battery in an over-discharge state. The second control includes pressurizing the all-solid-state battery in the over-discharge state. The all-solid-state battery includes an anode layer, a solid electrolyte layer, and a cathode layer, in this order. The cathode layer includes silicon grains. The silicon grains include a clathrate II crystalline phase.

Abstract: The all-solid-state battery system includes an all-solid-state battery and an ECU (control device) that performs charge control and discharge control of the all-solid-state battery. If an internal short circuit is detected during charging control of the all-solid-state battery, the ECU switches charging control to discharging control and discharges the all-solid-state battery.

Abstract: The electrified vehicle includes an all-solid-state battery in which a positive electrode layer, a solid electrolyte layer, and a negative electrode layer are stacked in the front-rear direction (predetermined direction) of the electrified vehicle. The electrified vehicle also includes an acceleration sensor that detects a first acceleration in a direction perpendicular to the longitudinal direction and a second acceleration in the longitudinal direction. In an electrified vehicle, charging and discharging of the all-solid-state battery is prohibited when the first acceleration exceeds the first reference value, and the all-solid-state battery is prohibited until the second acceleration exceeds a second reference value that is larger than the first reference value, charging/discharging is allowed.

Abstract: The sulfide solid-state battery of the present disclosure has a battery laminate having one or more unit batteries; and an inorganic coating layer covering at least a portion of the periphery of the battery laminate. The unit battery is formed by laminating a positive electrode layer, a solid electrolyte layer, and a negative electrode layer in this order. At least one of the positive electrode layer, the solid electrolyte layer, and the negative electrode layer contains a sulfide solid electrolyte. The inorganic coating layer is made of an inorganic glass having a glass transition point of 260° C. or higher and 360° C. or lower.

Abstract: A negative electrode active material layer and a solid-state battery, which can exhibit the inherent performance of porous silicon particles, are provided. The negative electrode active material layer of the present disclosure contains porous silicon particles, graphite particles, and inorganic solid electrolyte particles, and the ratio of the mass of the graphite particles to the total mass of the porous silicon particles and the graphite particles is 10 mass % to 25 mass %. In addition, the solid-state battery of the present disclosure comprises the negative electrode active material layer of the present disclosure, the solid electrolyte layers, and the positive electrode active material layer in this order.

Abstract: Disclosed is an active material composite particle comprising Si and having excellent cycle characteristics. The active material composite particle of the present disclosure comprises a center portion and a surface layer portion, wherein the center portion comprises a solid electrolyte and a plurality of Si particles, the surface layer portion comprises a polymer and has a carrier ion-conductivity, and a ratio of polymer in the surface layer portion is higher than a ratio of polymer in the center portion.

Abstract: The resin current collector of the present disclosure includes a base material resin, a conductive resin layer including a conductive filler dispersed in the base material resin, and a fluorine-based resin layer laminated on the conductive resin layer. Further, in the use of the resin current collector in the laminated battery, the current collector of at least one end face of the laminated battery is the resin current collector of the present disclosure, and the conductive resin layer is in contact with the other layer constituting the laminated battery, and the fluorine-based resin layer is disposed so as to face the opposite side to the other layer constituting the laminated battery.

Abstract: A compatibilizer comprising: a modified ethylene copolymer produced by modifying a copolymer of an ethylene monomer and one or two or more of ?-olefin monomers with 4 to 8 carbon atoms with an unsaturated carboxylic acid and/or an anhydride thereof, wherein the modified ethylene copolymer has a melt flow rate (MFR: 190° C., 2.16 kg) of 15 g/10 min to 39 g/10 min.

Abstract: A polymer composition containing 100 parts by mass of a polyolefin-based polymer (a), 0.1 to 20 parts by mass of a polar polymer (b), and 0.1 to 25 parts by mass of an acid-modified polyolefin (d), the polar polymer (b) being at least one selected an ethylene-vinyl alcohol-based copolymer (b1) and a polyamide-based polymer (b2), wherein the acid-modified polyolefin (d) is a modified ethylene copolymer, the modified ethylene copolymer being a copolymer of an ethylene monomer and one or more ?-olefin monomers having 4 to 8 carbon atoms, and the copolymer being modified with an unsaturated carboxylic acid and/or an anhydride thereof, wherein the modified ethylene copolymer has a melt flow rate (MFR: 190° C., 2.16 kg) of 15 to 39 g/10 minutes.

Abstract: The present disclosure provides primarily a negative electrode active material with reduced volume change during charge-discharge. The negative electrode active material of the disclosure consists of clathrate-type Si particles comprising one or more metals selected from the group consisting of Mo, Fe, Zn, Mg, Pd, Zr, Ag, Co, Cr, Nb and V. A negative electrode active material layer according to the disclosure comprises the negative electrode active material of the disclosure, and a lithium-ion battery of the disclosure comprises the negative electrode active material layer of the disclosure.

Abstract: A negative electrode body of the present disclosure is a negative electrode body for a lithium ion battery having a negative electrode current collector layer and a negative electrode active material layer, wherein the negative electrode active material layer contains Si particles having a clathrate type structure as a negative electrode active material, wherein the negative electrode active material layer contains 0.850 mass % to 5.000 mass % of Al with respect to a mass of the negative electrode active material layer, and wherein the Si particles contain 0.040 mass % to 0.250 mass % of Al with respect to a mass of the Si particles.

Abstract: The present invention relates to a laminate including a protection layer, a barrier layer, and a heat sealing layer, in which a product of a tensile elastic modulus A in a reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and a value of the tensile elastic modulus B to the tensile elastic modulus A, a value of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10.

Abstract: The composite particle includes a positive electrode active material particle and a coating film. The coating film covers at least a part of a surface of the positive electrode active material particle. The coating film includes a phosphorus compound. The phosphorus compound includes at least one of Na and K and P.

Abstract: A multilayer structure includes a protective layer, an ethylene-vinyl alcohol copolymer layer, a heat seal resin layer, and an intermediate layer provided between the ethylene-vinyl alcohol copolymer layer and the heat seal resin layer and containing a polypropylene resin, wherein the intermediate layer further contains a hydrocarbon resin having a number average molecular weight of 100 to 3,000, and a softening point of not less than 60° C. and less than 170° C. The multilayer structure satisfies requirements for a lower water vapor permeability and a sufficient heat seal strength, and provides a standup pouch having a smaller gas barrier property change rate after retort treatment.

Abstract: Disclosed is a laminate including a protection layer, a barrier layer, and a heat sealing layer, in which a product of a tensile elastic modulus A in a reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and a value of the tensile elastic modulus B to the tensile elastic modulus A, a value of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10.