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ZINC SECONDARY BATTERY

Resumen de: US2025372725A1

There is provided a zinc secondary battery including a positive electrode plate including a positive electrode active material layer and a positive electrode current collector; a negative electrode plate including a negative electrode active material layer containing at least one selected from the group consisting of zinc, zinc oxide, a zinc alloy, and a zinc compound, and a negative electrode current collector; a hydroxide ion conductive separator that separates the positive electrode plate and the negative electrode plate so as to make hydroxide ions conductable; and an electrolytic solution. The electrolytic solution is an aqueous solution containing an alkali metal hydroxide including at least sodium hydroxide, and a total concentration of the alkali metal hydroxide in the electrolytic solution is from 5.0 to 6.0 mol/L, and a concentration of the sodium hydroxide in the electrolytic solution is from 0.5 to 6.0 mol/L.

ELECTRICITY STORAGE DEVICE

Resumen de: US2025372718A1

Provided is a technique to suppresses an increase in a resistance under a low temperature environment. The electricity storage device disclosed herein includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The negative electrode contains a silicon-containing graphite particle as the negative electrode active material, which is a graphite particle containing the silicon. The nonaqueous electrolytic solution contains EC, DMC, EMC, carboxylic acid ester whose carbon number is equal to or less than 4, and FEC, as the nonaqueous solvent. With a sum of the EC, the DMC, the EMC, and the carboxylic acid ester being 100 volume %, a volume of the carboxylic acid ester is 1 volume % to 30 volume %. A content amount of the FEC with respect to a whole of the nonaqueous solvent is 0.1 mass % to 5 mass %.

SECONDARY BATTERY

Resumen de: US2025372717A1

To provide an electrolyte solution capable of inhibiting ignition or the like and a secondary battery including the electrolyte solution. The secondary battery includes a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and an electrolyte solution. The electrolyte solution includes a mixed solvent and a lithium salt. In the electrolyte solution, a concentration of the lithium salt is higher than 1 mol per liter of the mixed solvent. The mixed solvent includes a fluorinated linear carbonate and a fluorinated cyclic carbonate. In a DSC measurement of the electrolyte solution, a peak of heat flow of a heat generation reaction in a range higher than or equal to 180° C. and lower than or equal to 300° C. is less than or equal to 200 mW/g.

SOLID-STATE BATTERY

Resumen de: US2025372729A1

This disclosure provides a solid-state battery that has a negative electrode layer, a protection layer, a solid electrolyte layer, and a positive electrode layer in this order and uses a deposition-dissolution reaction of metal lithium. The negative electrode layer includes a first metal element that is able to alloy with lithium. The protection layer includes a second metal element that is able to alloy with lithium. The first and the second metal elements are different elements; and, as seen in a sectional view of the solid-state battery along a thickness direction, the protection layer has a first protruded portion that is protruded outward beyond an end face of the negative electrode layer in a direction orthogonal to the thickness direction, and the solid electrolyte layer has a second protruded portion that is protruded outward beyond an end face of the protection layer in the direction orthogonal to the thickness direction.

ENERGY STORAGE SYSTEM INCLUDING SUBMODULES HAVING STRUCTURAL INTERCONNECT BOARDS

Resumen de: WO2025250956A1

An energy storage enclosure includes a battery pack, a plurality of battery modules disposed within the battery pack, a plurality of battery submodules disposed within each of the plurality of battery modules, and a plurality of battery cells disposed within each of the plurality of battery submodules. Each battery cell includes structural interconnect board (ICB) assemblies disposed on opposing sides of the battery cell. Each of the structural ICB assemblies includes a carrier having a main portion that extends along one of the opposing sides of the battery cell, a first end portion that extends perpendicularly from a first end of the main portion along a top surface of the battery cell, and a second end portion that extends perpendicularly from a second end of the main portion along a bottom end of the battery cell.

ENERGY STORAGE SYSTEM INCLUDING DEEP DRAWN TRAYS WITH INTEGRATED SUBMODULE SUPPORTS

Resumen de: WO2025250960A1

An energy storage enclosure includes a battery pack, a plurality of battery modules arranged within the battery pack, and a plurality of battery submodules arranged within each of the plurality of battery modules. Each of the plurality of submodules includes a tray, and a plurality of submodule cell stacks arranged within the tray. The tray includes a bottom portion adjacent to a bottom side of the plurality of submodule cell stacks and a wall portion extending upwardly from a perimeter of the bottom portion to a flange portion extending outwardly from the wall portion. A first cell expansion support is fixedly attached to an inside surface of the bottom portion of the tray. A second cell expansion support is fixedly attached to an inside surface of the bottom portion of the tray.

SEPARATION AND RECYCLING OF LITHIUM-ION BATTERY METALS VIA A MAGNETIC FIELD

Resumen de: WO2025250754A1

Systems and methods are provided for separating mixed metals from one another out of batteries (e.g., lithium ion batteries (LIBs)). Magnetic field gradients can be used to separate mixed metals from one another, and the products of the separation (e.g., lithium (Li), nickel (Ni), manganese (Mn), and/or cobalt (Co)) can be used again in other manufacturing processes, such as to manufacture new LIBs.

BATTERY CHARGING CABINET

Resumen de: WO2025250749A1

The present device provides a storage cabinet for safely housing multiple rechargeable chemical batteries, comprising a fire-proof outer housing that defines an interior chamber; within the chamber, one or more battery storage compartments are arranged such that an insulating air-gap separates each compartment from every adjacent compartment; each battery compartment includes a closable access door that forms an air-tight seal; an ignition source is disposed within the interior chamber to deliberately ignite any combustible gas generated by a battery thermal event; and a ventilation system, having an inlet port for introducing ambient air into the interior chamber and an exhaust port leading to an external exhaust conduit and vent which is manages airflow and aids in controlled combustion and heat dissipation.

CHEMICAL ADDITIVES FOR LIQUEFIED GAS ELECTROLYTES

Resumen de: WO2025250625A1

An electrochemical device is disclosed that includes an ionically conducting electrolyte, a first electrode and a second electrode. The electrodes are in contact with the ionically conducting electrolyte, and a housing encloses the electrodes and the ionically conducting electrolyte. The ionically conducting electrolyte comprises a liquefied gas solvent, an ester solvent, and a salt. The liquefied gas solvent has a vapor pressure above 100 kPa at a temperature of 293.15K. The salt and ester are soluble in the liquefied gas solvent such that the ionically conducting electrolyte is a liquid under pressure.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: US2025372808A1

The present application provides a battery cell, a battery, and an electric device. The battery cell includes a housing, a pressure relief mechanism, and a protective member. The housing includes a wall portion. The pressure relief mechanism is provided at the wall portion, and can be actuated to release gas within the housing in a case where an internal pressure or temperature of the battery cell reaches a threshold value. The protective member has a melting point greater than or equal to 300° C., and the protective member covers at least part of the pressure relief mechanism in a thickness direction of the wall portion.

Thermal Runaway Fumes Management

Resumen de: US2025372804A1

The invention relates to an assembly for a vehicle protecting the passenger cell against contamination by a gas that is released from a battery module in case of thermal runaway. The released gas propagates into a hollow element of the vehicle providing a passageway which is blocked at a location by an expanded cured adhesive material thus providing a barrier to the gas.

NEGATIVE ELECTRODE SHEET, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK, AND ELECTRIC DEVICE

Resumen de: US2025372836A1

A negative electrode sheet, a secondary battery, a battery module, a battery pack, and an electric device. The negative electrode sheet includes an electrode sheet body, a tab, and a connecting member. The electrode sheet body includes a plurality of layers of carbon fibers. At least two of the plurality of layers of carbon fibers are connected to the connecting member. The tab is electrically connected to the electrode sheet body through the connecting member.

PRESSURE RELIEF ASSEMBLY, BATTERY MODULE, BATTERY PACK, AND POWERED DEVICE

Resumen de: US2025372799A1

Provided are a pressure relief assembly, a battery module, a battery pack, and a powered device. The pressure relief assembly includes a cooling plate and an isolation assembly. The cooling plate is configured to cool a cell, and a pressure relief inlet is disposed on the cooling plate. The isolation assembly is connected to the cooling plate to define a pressure relief cavity. A pressure relief outlet is disposed on the isolation assembly, and the pressure relief inlet communicates with the pressure relief outlet through the pressure relief cavity.

MULTI-CELL MONOLITHIC THIN-FILM BATTERY AND FABRICATION METHOD THEREOF

Resumen de: US2025372830A1

The disclosed invention consists of a multi-cell monolithic thin-film battery (0), comprising one single substrate (1) on which two and more monolithic battery cells, comprising a cathode current collector (20), a cathode electrode layer (21), a solid electrolyte layer (22) and an anode current collector (23) deposited onto each other, wherein all monolithic battery cells (2, 2′) are produced by thin-film techniques with layer thicknesses between 10 nm and 20 μm, avoiding an anode layer during manufacturing, therefore named monolithic anode-free battery cells (2, 2′), with improved properties and based on a viable method for connecting multiple cells to a stacked thin-film battery. This is reached by deposition of all layers of the resulting multi-cell monolithic thin-film battery (0) are manufactured on top of each other on the single substrate (1), a blocking layer as material layer blocking electrons and ions is deposited between the cathode current collector (20) and the anode current collector (23) of each adjacent monolithic anode-free battery cells (2, 2′), with deposited thickness of the blocking layer between 5 nm and 1 μm and the first layer of the next adjacent monolithic anode-free battery cell (2′) is deposited on the last layer of the previous monolithic anode-free battery cell (2).

ELECTROLYTE SOLUTION FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME

Resumen de: US2025372710A1

Provided is an electrolyte solution for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive represented by Formula 1 as described herein.

ELECTRODE ASSEMBLY AND ELECTROCHEMICAL DEVICE INCLUDING SAME

Resumen de: US2025372722A1

An electrode assembly, including: a negative electrode structure; and a plurality of positive electrodes, wherein the negative electrode structure includes first and second separating films, and a lithium metal layer interposed between the first and second separating films, wherein the negative electrode structure is divided into a plurality of stack portions, a plurality of folding portions, and first and second wrapping portions, wherein the stack portion and the folding portion are located alternately between the first and second wrapping portions located at an end of the negative electrode structure, respectively, and the first and second wrapping portions abut the stack portion, wherein the plurality of stack portions are sequentially positioned side by side in a thickness direction by the folding portion, and at least one positive electrode is positioned between the stack portions adjacent each other in the thickness direction, and wherein the second wrapping portion is positioned to abut the first wrapping portion, and an outer surface of the electrode assembly in the thickness direction and in a longitudinal direction is surrounded by the second wrapping portion, or by the second wrapping portion and at least one of the first wrapping portion and an outermost stack portion.

Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

Resumen de: US2025372708A1

Provided are a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound represented by Formula 1, a lithium salt, and an organic solvent; and a lithium secondary battery including the same:wherein the variables are described herein.

ELECTRODE PLATE, SECONDARY BATTERY INCLUDING SAME, AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: US2025372727A1

Embodiments of the present disclosure may provide an electrode plate. The electrode plate includes: a mixture section where an active material is on a substrate; an uncoated section where the active material is not on the substrate; a tab coupled to the uncoated section; and a resin layer on the mixture section.

Composite Solid Electrolyte and All-Solid-State Battery Comprising the Same

Resumen de: US2025372698A1

A composite solid electrolyte includes sulfide-based solid electrolyte particles, and a polymer coating layer formed on the sulfide-based solid electrolyte particles, wherein the polymer coating layer includes a polymer having a Mooney viscosity (ML1+4, 100° C.) of from 30 to 110. An all-solid-state battery including the composite solid electrolyte is also provided.

ELECTRODE ASSEMBLY AND METHOD FOR MANUFACTURING SAME

Resumen de: US2025372728A1

An electrode assembly includes a first electrode, an outer separator on the first electrode, a second electrode on the outer separator, and an inner separator on the second electrode, wherein a protection member is at an end of one side of the first electrode, and a position of the protection member is at a curved portion of the first electrode in a wound state.

POWER SUPPLY SYSTEM

Resumen de: US2025373016A1

An electric power supply system includes: a first electric power supply part that utilizes a commercial electric power supply source; a second electric power supply part that utilizes a vehicle battery or other supply source; a third electric power supply part that utilizes a fuel cell; a fourth electric power supply part that utilizes photovoltaic electric power generation; a first electric power supply line for supplying electric power to an important appliance group; a second electric power supply line for supplying electric power to a general appliance group; and a distribution board. The distribution board includes: a first switch to switch over the first electric power supply part and the second electric power supply part at an input; a second switch to switch over the third electric power supply part and an output of the first switch at an input, the second switch having an output connected to the first electric power supply line; and a third switch to switch over the fourth electric power supply part and the output of the first switch at an input, the third switch having an output connected to the second electric power supply line.

COMMUNICATION DEVICE, COMMUNICATION METHOD, AND POWER STORAGE SYSTEM

Resumen de: US2025373026A1

A communication device executes a state information transmission process of transmitting a plurality of types of battery state information from a battery to a BMS via serial communication. The state information transmission process includes: a process of transmitting a frame including the plurality of types of battery state information from the battery; a process of replacing an order of the plurality of types of battery state information in the frame transmitted from the battery with a predetermined order common to other frames; a process of assigning battery No. information to the frame in which the order of the plurality of types of battery state information is replaced with the predetermined order; and a process of transmitting, to the BMS, the frame in which the order of the plurality of types of battery state information is replaced with the predetermined order and to which the battery No. information is assigned.

Positive Electrode Active Material, Secondary Battery, and Method of Producing Positive Electrode Active Material

Resumen de: US2025372643A1

A positive electrode active material comprises a secondary particle. The secondary particle includes crystallites. The crystallites extend radially from a center of the secondary particle toward outside. Each of the crystallites includes a lithium-metal composite oxide. The lithium-metal composite oxide has a lamellar-rock-salt-type structure. In a surface of the secondary particle, an open pore is formed between the crystallites that are adjacent to each other. The open pore has a pore diameter of 250 nm or more.

METHOD FOR TREATING BATTERY MEMBER

Resumen de: US2025372748A1

Provided is a method that is for treating a battery member containing a sulfide, and that is capable of effectively removing hydrogen sulfide generated when the battery member is brought into contact with a treatment liquid. The method is for treating a battery member containing lithium metal and a sulfide, the method comprising: a nitrification step S1 for bringing the battery member into contact with nitrogen gas to obtain a substance containing lithium nitride and the sulfide; and a treatment step S2 for bringing the substance containing lithium nitride and the sulfide into contact with a treatment liquid containing water.

FUEL CELL MODULE

Nº publicación: US2025372681A1 04/12/2025

Solicitante:

KK TOYOTA JIDOSHOKKI [JP]
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

Resumen de: US2025372681A1

A fuel cell module includes a fuel cell stack, and a controller configured to start power generation of the fuel cell stack when a charging rate of a power storage device directly connected between the fuel cell stack and a load becomes a lower limit value or less, and configured to stop power generation of the fuel cell stack when the charging rate of the power storage device becomes an upper limit value or more. The fuel cell stack is connected to the power storage device not through a power conversion circuit, and the controller changes at least one of the lower limit value and the upper limit value based on a deterioration degree of the fuel cell stack.