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1363
results.
Updated on
13/09/2025 [07:35:00]
Results 925 to 950 of 1363
Absstract of: WO2025183002A1
This non-aqueous electrolyte secondary battery includes: a winding-type electrode body in which a first electrode and a second electrode are wound with a separator interposed therebetween; and an exterior body that accommodates the electrode body. The first electrode has a core body and a mixture layer formed on the surface of the core body. A core-body-exposed part where the core body is exposed is formed on the surface of the first electrode, and an electrode tab is joined to the core-body-exposed part. In an expanded state along the planar direction of the first electrode, the surface of the electrode tab in a facing region that faces the core body is a flat surface. In the electrode body, at least one of the core body and the electrode tab is bent to form gaps between the core body and both ends, in the winding direction, of the electrode tab in the facing region, and a protective layer including a material softer than the electrode tab is provided in each of the gaps.
Absstract of: WO2025182714A1
Provided is a non-aqueous electrolyte secondary battery provided with an electrode body in which the flatness of an end face is improved. This non-aqueous electrolyte secondary battery comprises: an electrode body in which a first electrode and a second electrode having different polarities from each other are wound via a separator; a non-aqueous electrolyte; and an exterior can that accommodates the electrode body and the non-aqueous electrolyte. The first electrode has a first core body and a first mixture layer formed on the surface of the first core body. A first core body exposed part in which the first core body is exposed is disposed at one end part of the electrode body in a winding axis direction. The first core body exposed part has a recessed part thinner than the first core body in a region where the first mixture layer is formed. The position of the recessed part changes from the end part side of the first mixture layer to the end part side of the first core body from the winding outer side to the winding inner side along the winding direction of the electrode body.
Absstract of: WO2025182754A1
This composite electrolyte contains an inorganic solid electrolyte, a polymer, and an alkali metal salt. The polymer has a structure represented by formula (1), and the alkali metal salt is included in an amount of 5-250 mol% with respect to the total amount of ester groups in the polymer. In formula (1), R represents a hydrogen atom or an alkyl group. X and Y are the same or different and represent a hydrogen atom, a hydroxyl group, or an alkyl group. n represents an integer of 1 or more, and m represents an integer of 0-10.
Absstract of: WO2025182727A1
Provided are a powder (19) capable of reducing a change in the crystal structure thereof, an ion conductor (10), a sheet (12), and a power storage device (11). The powder is an oxide-based solid electrolyte having a garnet-type crystal structure, and satisfies an inequality y≤0.04x+0.05 where x represents the specific surface area (m2/g) and y represents the half-value width (°) of a peak regarding a surface index (042) in a powder X-ray diffraction pattern. The ion conductor contains the powder and an electrolytic solution (23) in which a lithium salt is dissolved in a solvent. The sheet includes the ion conductor and a binder for binding the solid electrolyte. The power storage device includes the powder.
Absstract of: WO2025182666A1
Provided are a composite member that is excellent in insulation property and heat resistance and enables suppression of detachment or the like of an insulating coating film at a corner part which is especially likely to be damaged by collision between the composite members or between the composite member and another component, and a method for manufacturing the same. The composite member (20) comprises a base material (25) and an insulating coating film (10) that covers at least a part of the surface of the base material (25). The base material (25) includes a pair of opposing main surface parts (25a), a plurality of end surface parts (25b) that connect the pair of main surface parts (25a) to each other, and a corner part (25c) between the main surface part (25a) and the end surface part (25b). Porosity P1 of the insulating coating film (10) formed on the corner part (25c) of the base material (25) is smaller than porosity P2 of the insulating coating film (10) formed on the main surface part (25a) of the base material (25).
Absstract of: WO2025183876A1
The present disclosure provides a method for heating a dual stack fuel cell system of a vehicle. The method may include receiving a heat power request from a first fuel cell stack, receiving a first temperature of the first fuel cell stack and a second temperature of a second fuel cell stack, initiating, responsive to the first temperature and the second temperature indicating that the first fuel cell stack and the second fuel cell stack are frozen, a freeze-start thermal operating mode for the first fuel cell stack, and transferring, during the freeze-start thermal operating mode for the first fuel cell stack, heat from a brake resistor to the first fuel cell stack.
Absstract of: WO2025183526A1
Provided is a battery pack that improves upon conventional heat sink-based cooling methods by directly cooling battery cells while preventing temperature deviations between the battery cells, due to the positions thereof, within the battery pack. The battery pack of the present invention includes: a pack housing including a bottom plate, an outer frame, and a partition frame; and a plurality of battery cell assemblies accommodated in the pack housing, wherein the outer frame and the partition frame are provided with flow paths through which a cooling fluid can flow, and distribution holes and return holes in communication with the flow paths, so that the cooling fluid flows toward the battery cell assemblies to directly cool the battery cells therein.
Absstract of: WO2025183525A1
The present invention relates to a battery module comprising: a cell assembly comprising a plurality of batter cells; a module case accommodating the cell assembly; and a thermally conductive adhesive interposed between the cell assembly and module case, and having a heat transfer-blocking section at least a portion of which undergoes pyrolysis at a reference temperature and incrementally expands.
Absstract of: WO2025183534A1
The secondary battery according to an embodiment of the present invention may comprise: an electrode assembly; a first exterior material which surrounds the electrode assembly to seal the electrode assembly; a second exterior material, at least a portion of which is spaced apart from the first exterior material, the second exterior material surrounding the outer surface of the first exterior material; and an electrode lead electrically connected to the electrode assembly and extending from the inside of the first and second exterior materials to the outside.
Absstract of: WO2025183540A1
The present specification relates to a carbon nanotube dispersion solution, an electrode slurry composition comprising same, an electrode comprising same, and a secondary battery comprising same, the solution including: carbon nanotubes; a first dispersant comprising a polyvinyl butyral resin in which the content of a repeating unit containing a hydroxyl group is 15 to 30 wt%; a second dispersant comprising an amine group or an imine group; and an alcohol-based solvent.
Absstract of: WO2025183012A1
This nonaqueous electrolyte solution contains (I) a solute, (II) a nonaqueous organic solvent, (III) tris (1,1,1,3,3,3-hexafluoro-2-propyl) phosphite, and (IV) fluoroethylene carbonate. This nonaqueous electrolyte battery includes the nonaqueous electrolyte solution. This method for producing the nonaqueous electrolyte battery includes a step for injecting the nonaqueous electrolyte solution.
Absstract of: WO2025183000A1
Provided are an electrode (12) and a power storage device (11) capable of reducing internal resistance. The electrode includes: an active material (20); particles (19) of an oxide having a garnet-type crystal structure containing Li, La, and Zr; and a first compound (23) and a second compound (24), which are different from each other and are bonded to the surface of the particles. The first compound contains fluorine, phosphorus, and oxygen, and the second compound contains fluorine. The oxide may include a dopant substituted with at least one of lithium ions, lanthanum ions, and zirconium ions. The valence of the dopant differs from the valence of the substituted ion. The power storage device includes the electrode.
Absstract of: WO2025183003A1
The present disclosure provides an electrolyte composition which contains a polymer, an organic solvent, and particles, wherein the polymer has a side group that comprises one or more groups selected from the group consisting of an alkali metallized phenolic group, an alkali metallized carboxylic acid group, an alkali metallized sulfonic acid group, and an alkali metallized sulfonyl imide group.
Absstract of: WO2025182998A1
Disclosed is a positive electrode for a nonaqueous electrolyte secondary battery, the positive electrode comprising: a positive electrode core body; and a positive electrode mixture layer that is disposed on at least a surface of the positive electrode core body. The positive electrode mixture layer contains at least a positive electrode active material and a positive electrode conductive agent. The positive electrode conductive agent contains porous carbon and carbon nanotubes. Particles of the porous carbon have a three-dimensional structure that has a plurality of through holes. The through holes are each a pore that continuously leads from a surface of a particle to another surface of the particle. The mode diameter of the pore size distribution of the porous carbon is in the range of 0.5 nm to less than 100 nm.
Absstract of: WO2025182951A1
A power storage module (10) comprises: at least one power storage device (20); a case (40) in which the at least one power storage device (20) is accommodated; a cooling liquid (50) in which a plurality of power storage devices (20) are immersed inside the case (40); cooling liquid piping (61) which is connected to the case (40) and through which the cooling liquid (50) passes; and an exhaust pipe (70) that is for exhausting gas inside the case (40) from the case (40) and that is thermally connected to the cooling liquid piping (61).
Absstract of: US2025279481A1
Disclosed is a lithium secondary battery (10) including a positive electrode (11), a negative electrode (12), and a non-aqueous electrolyte having lithium ion conductivity. In the negative electrode (12), lithium metal is deposited during charging, and the lithium metal is dissolved in the non-aqueous electrolyte during discharging. The non-aqueous electrolyte includes a solvent and a lithium salt. The solvent includes a non-fluorinated ether and a fluorinated cyclic monoether. The fluorinated cyclic monoether includes a cyclic structure having one ether bond. The lithium salt includes an anion of an oxalate complex.
Absstract of: US2025279524A1
The present disclosure provides a battery box beam, a battery box, and a battery module, which relates to a technical field of batteries, and aims to improve the technical problem that the connection strength of the rolled battery box beam at the connecting portion is insufficient and separation may occur. The battery box beam includes a body wall; a first beam wall connected to one end of the body wall, and the first beam wall compries a first pressure bearing section disposed opposite to the body wall; and a second beam wall connected to another end of the body wall, the second beam wall includes a second pressure bearing section, and the second pressure bearing section is disposed opposite to the body wall and extends towards and partially overlaps with the first pressure bearing section, thereby meeting the requirements of light-weight and strength of the battery module.
Absstract of: US2025279556A1
A secondary battery includes an electrode assembly including a cathode and an anode, a case in which the electrode assembly is housed, and a cap assembly which covers the case. The cap assembly includes a cap plate which covers the case and includes a terminal hole formed therein, a gasket disposed on the cap plate around the terminal hole, and a rivet which is inserted into the terminal hole to be coupled to the cap plate through the gasket, and includes a first protrusion part inserted into an upper portion of the gasket.
Absstract of: US2025279514A1
In an embodiment, a battery includes an exterior part, an electrode group, a terminal, and an insulator, and the electrode group is housed in an internal cavity of the exterior part. The terminal is inserted into the internal cavity through the exterior part and includes a terminal head arranged outside the exterior part. The insulator includes a bottom portion sandwiched between the terminal head and an outer surface of the exterior part, and a covering portion covering the terminal head from an outer peripheral side of the terminal on the outer surface of the exterior part. The covering portion abuts on the outer surface of the exterior part, and a protruding height of the covering portion from the outer surface of the exterior part is a protruding height of the terminal head from the outer surface of the exterior part or more over an entire circumference.
Absstract of: US2025279557A1
An electric battery assembly is disclosed comprising: a battery cell having an exterior housing and first and second electrical terminals enabling power to be drawn from the battery cell, the housing being electrically coupled to the first electrical terminal and electrically insulated from the second electrical terminal; an electronic unit comprising a measurement device; and wherein the electronic unit is electrically connected to the second electrical terminal and to the housing, thereby electrically coupling the electronic unit to the first battery cell terminal via the housing, enabling the measurement device to measure a property of the battery cell.
Absstract of: US2025279476A1
A secondary battery and an electrical apparatus comprising the secondary battery. The secondary battery comprises: a negative pole piece and an electrolyte. The negative pole piece of the secondary battery comprises a silicon-carbon composite material having a three-dimensional-network cross-linked pore structure, and the electrolyte of the secondary battery comprises lithium fluorosulfonyl imide.
Absstract of: US2025279532A1
A battery cell includes: a case accommodating an electrode assembly in an accommodating space; a cap plate coupled to at least one side of the case; a vent provided in the case or the cap plate; and a venting cover disposed to cover the vent, and provided to be opened by pressure acting from the accommodating space to the outside of the case, wherein the venting cover includes a venting sheet provided to be opened by a predetermined amount of pressure, and including a first surface facing the vent and a second surface opposite to the first surface; and a venting cap having a support portion supporting the first surface of the venting sheet.
Absstract of: US2025279515A1
A battery case, connector, and method of forming are provided. The battery case includes, an outer wall, a plurality of first wires internal to the battery enclosure, and a battery connector. The battery connector includes an external connector, a circuit board connected to the external connector on a first side through a hole in the outer wall and connected to the plurality of first wires on a second side opposite the first side, where the circuit board is further bonded to an internal side of the outer wall on a portion of the first side, and a plate bonded to the second side of the circuit board opposite the first side, where the plate completely covers a footprint of the hole in the outer wall through which the external connector attaches to the circuit board, but does not cover connection points for the plurality of first wires.
Absstract of: US2025279485A1
The present invention is directed to a hybrid high voltage aqueous electrolyte battery that combines Ni/Mg2NiH4 and Mg-ion rechargeable battery chemistries. The hybrid aqueous electrolyte battery can be used for plug-in hybrid electrical vehicles and electric vehicles.
Nº publicación: US2025279467A1 04/09/2025
Applicant:
24M TECH INC [US]
24M Technologies, Inc
Absstract of: US2025279467A1
Embodiments described herein relate generally to devices, systems and methods of producing high energy density batteries having a semi-solid cathode that is thicker than the anode, An electrochemical cell can include a positive electrode current collector, a negative electrode current collector and an ion-permeable membrane disposed between the positive electrode current collector and the negative electrode current collector. The ion-permeable membrane is spaced a first distance from the positive electrode current collector and at least partially defines a positive electroactive zone. The ion-permeable membrane is spaced a second distance from the negative electrode current collector and at least partially defines a negative electroactive zone. The second distance is less than the first distance. A semi-solid cathode that includes a suspension of an active material and a conductive material in a non-aqueous liquid electrolyte is disposed in the positive electroactive zone, and an anode is disposed in the negative electroactive zone.
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