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1254
results.
Updated on
28/02/2026 [07:34:00]
Absstract of: WO2026042091A1
The present invention discloses a battery cover (100) with fail-safe ionic conductivity isolation for flooded lead-acid batteries, comprising a bottom plate (110) with a plurality of through holes (112) and channels (116) facilitating electrolyte refilling and gas egress A main channel (114) on the bottom plate (110) receives replenished electrolyte, distributed via the plurality of channels (116). The top plate (120) mates with the bottom plate (110) to conceal the channels and through holes. A flow regulator assembly (130) selectively controls electrolyte flow, including options for manual or electric operation. Float-cum-level indicators (140) in the through holes provide real-time electrolyte level indication. The vent (150) includes a flame arrestor to ensure safety. This design offers advantages such as precise electrolyte distribution, enhanced safety through gas egress management, and real-time electrolyte level monitoring, ensuring optimal battery performance and longevity.
Absstract of: WO2026041167A1
A secondary battery (5) and a preparation method therefor, and an electric device. The secondary battery (5) comprises a negative electrode sheet, the negative electrode sheet comprises a negative electrode current collector, the negative electrode current collector comprises a copper foil, and the copper foil comprises copper grains having different particle sizes. The copper grains comprise copper grains having a particle size less than or equal to 0.5 μm and copper grains having a particle size of 1-4 μm, wherein the proportion of the number of the copper grains having a particle size less than or equal to 0.5 μm in the total number of the copper grains is 70-95%, and the minor diameter of at least part of the copper grains having a particle size of 1-4 μm is arranged along the thickness direction of the negative electrode current collector.
Absstract of: WO2026041095A1
A preparation method for a dual-enhanced interface solid polymer electrolyte by means of step-by-step polymerization, the preparation method comprising: mixing a matrix monomer and a first photoinitiator to obtain a mixed slurry, and illuminating same to obtain a pre-polymerized slurry; adding a lithium salt and a second photoinitiator to the pre-polymerized slurry, mixing same to obtain a polymer slurry, dividing the polymer slurry into a first polymer slurry and a second polymer slurry, adding a nitrogen-containing functional monomer to the first polymer slurry to obtain a polymer slurry A, and adding a fluorine-containing functional monomer to the second polymer slurry to obtain a polymer slurry B; and pouring the polymer slurry A on a first face of a base membrane, performing a treatment on same, pouring the polymer slurry B on a second face of the base membrane, and performing a treatment on same, so as to obtain a stepwise-polymerized dual-enhanced interface solid polymer electrolyte. The solid polymer electrolyte is prepared by means of using a step-by-step polymerization method, thereby optimizing a positive electrode side interface and a negative electrode side interface, and realizing continuous large-scale production of a solid polymer electrolyte.
Absstract of: WO2026040932A1
A liquid cooling plate of split flow channel type, relating to the technical field of liquid cooling plates. The liquid cooling plate of split flow channel type comprises a cooling plate body, and further comprises a uniform heat dissipation mechanism and a separate isolation mechanism, wherein the uniform heat dissipation mechanism is located at the top of the cooling plate body, and the separate isolation mechanism is located at a corner of the cooling plate body. The uniform heat dissipation mechanism is configured to make a flow path of a cooling liquid uniform, and is also configured so that some pipes can be removed and replaced after the device fails. By means of the arrangement of the uniform heat dissipation mechanism, the flow path of the cooling liquid in the cooling plate body is designed as a plurality of independent flow channel bodies so as to prevent mixing and leakage of the cooling liquid. In addition, the multi-flow channel design can increase the contact area between the cooling liquid and a heat source, and each flow channel operates independently, facilitating more uniform absorption and dissipation of heat distributed on a heating element, such that the heat dissipation efficiency can be improved. Moreover, the gradual bending of the flow channel bodies ensures that the overall path of each flow channel is identical, improving the heat exchange effect.
Absstract of: WO2026040917A1
Disclosed in the present application is a nickel-based positive electrode material, which comprises a nickel-based positive electrode material matrix and a solid electrolyte coating layer coating the surface of the nickel-based positive electrode material matrix. A preparation method for the nickel-based positive electrode material comprises: uniformly mixing a positive electrode material precursor, a lithium source and a dopant containing a doping element M, and then sintering the mixture, so as to obtain a sintered product; washing the sintered product with water, and drying same to obtain a washed product; and uniformly mixing the washed product with an antimony source and a fluorine source, and then sintering the mixture, so as to obtain a nickel-based positive electrode material. Further disclosed in the present application are a lithium-ion battery and an electric device. In the present application, the solid electrolyte coating layer is used as a solid electrolyte membrane of the positive electrode material matrix, has a high conductivity and good stability, and can also reduce the surface stress of the material, reduce the specific surface area of the material, protect the surface of the material, reduce side reactions with the electrolyte solution during the cycling process of the material, and improve the cycling stability of the material.
Absstract of: WO2026040744A1
The present application relates to a metal oxide and a use thereof. The metal oxide has a face-centered cubic structure with a space group of Fd-3m. The lattice constant a of the metal oxide is formula (I) to formula (II). The tensile residual stress F1 in the metal oxide is 0.105 MPa to 5.51 MPa, or the compressive residual stress F2 is 1.05 MPa to 8.6 MPa. The metal oxide is prepared by means of spray pyrolysis, and the pyrolysis rate K is 0.361 to 48.611. The metal oxide of the present application has high crystallinity and stability and high activity, which is conducive to improving the intercalation of sodium ions or lithium ions during the preparation of positive electrode materials, thereby improving comprehensive electrical performance.
Absstract of: US20260058271A1
The present invention is directed to a battery pack including improved fuse arrangement. The battery pack includes a plurality of battery cells, a battery cell holder holding the battery cells in a fixed position relative to each other, a printed circuit board attached to the battery cell holder and a busbar attached to the printed circuit board. The busbar may include a first leg extending away from the printed circuit board and a second leg extending away from the printed circuit board. The second leg is generally parallel to the first leg. The battery pack may further include a fuse. The fuse may include a first terminal connected to the first leg of the busbar and a second terminal connected to the second leg of the busbar such that the fuse is generally parallel to the printed circuit board.
Absstract of: US20260058244A1
A battery apparatus includes a battery cell stack in which a plurality of battery cells are stacked, and a heat sink located on one side of the battery cell stack, wherein the heat sink includes a cooling pipe, at least one rupture part, and a sealing material layer.
Absstract of: US20260058247A1
An energy storage system and a thermal management apparatus therefor are provided. The thermal management apparatus includes at least one heat exchange module, and a cooling module, which is used for providing a cooling medium and cooling the heat exchange module. The heat exchange module includes a battery pack group and a power conversion system group, which are connected in series; and in a cooling path, the power conversion system group is located downstream of the battery pack group. When a battery pack group needs to be heated, a cooling medium is heated during the process of same flowing through the power conversion system group.
Absstract of: US20260058250A1
A submersible energy storage device includes: a housing having an accommodation space therein; a cell stack in the housing; and an insulating fluid in the accommodation space, in which the cell stack is immersed, and configured to cool the cell stack, where the cell stack comprises a plurality of battery cells stacked in a stacking direction, and a cell spacer assembly provided between two adjacent battery cells among the plurality of battery cells, where the cell spacer assembly comprises a cooling plate having a first channel along a first direction of a plane perpendicular to the stacking direction of the plurality of battery cells and a second channel along a second direction of the plane, and where the first channel and the second channel are in fluid communication through a crossing position that connects the first channel and the second channel.
Absstract of: US20260058264A1
A plastic part, a battery cell, a battery, and a power consuming device. The plastic part includes: a plate-shaped body, where the body is provided with a first through hole, and the first through hole penetrates through the body in a thickness direction; and a first reinforcing member, disposed on the body and protruding from a surface of the body, where the first reinforcing member is located around the first through hole and is close to the first through hole.
Absstract of: US20260058295A1
A battery module includes a housing, at least one battery cell accommodated inside the housing, an extinguishing cartridge inside the housing, the extinguishing cartridge being filled with an extinguishing fluid, a triggering unit inside the housing, the triggering unit being configured to release the extinguishing fluid from the extinguishing cartridge toward the at least one battery cell, and a controller configured to control the triggering unit according to an abnormal condition of the at least one battery cell.
Absstract of: US20260058279A1
A battery tray and a battery transfer system may safely transfer produced batteries using magnetism to reduce the impact amount applied to the battery tray, and may reduce the impact applied to the battery inserted into the battery tray such that the battery may be transferred safely.
Absstract of: US20260058235A1
A current collecting foil is obtained by adhering a positive electrode foil and a negative electrode foil to each other via an adhesive layer containing a conductive material. Further, the adhesive layer contains a resin foaming agent.
Absstract of: US20260058289A1
Disclosed are a battery module and a battery pack. The battery module includes: a shell, having an opening; multiple battery cell stacking bodies, having a tab side, and are stacked and arranged in the shell; a partition, disposed on the shell, and separating adjacent two battery cell stacking bodies; and an adhesive block, filled in the opening to block the opening and cover the tab side of the battery cell stacking body. The partition may reduce the influence on adjacent battery cell stacking bodies when the battery cell stacking body loses control, lowering the risk of thermal spread. The adhesive block has effects of heat insulation and flame retardation. The adhesive block blocks the opening, ensuring structural strength and product performance without the need to separately dispose the end plate to block the opening.
Absstract of: US20260058284A1
A power storage apparatus includes: a power storage module including a plurality of power storage cells and a module case; and a power storage case. A first guide groove that extends along a first direction is formed on one of a first inner surface of the power storage case and a first outer surface of the module case. A first protruding portion that engages with the first guide groove is formed on another of the first inner surface and the first outer surface. A second guide groove that extends along the first direction is formed on one of a second inner surface of the power storage case facing the first inner surface and a second outer surface of the module case. A second protruding portion that engages with the second guide groove is formed on another of the second inner surface and the second outer surface.
Absstract of: US20260058291A1
An electrochemical energy storage element has a winding assembly with at least two electrode strips wound spirally around a winding axis and at least one separator strip arranged between the electrode strips. The winding assembly has two terminal end faces and an axially aligned cavity in its center. A winding core is arranged in the cavity. In order to increase the safety of the energy storage element, an anchor element is arranged on at least one of the two terminal end faces, the anchor element being connected to the winding core. The anchor element projects laterally from the axial center of the winding assembly at least in certain regions over the end face of the winding assembly.
Absstract of: WO2026042955A1
The present invention relates to a device for manufacturing a secondary battery, and more specifically, comprises a supply unit for supplying a laminate to a punching unit, the punching unit for punching the laminate, and a discharge unit for discharging the punched laminate, the punching unit including: a first punching unit for primarily punching the laminate to form tab units and alignment holes; and a second punching unit for aligning the laminate relative to the alignment holes and secondarily punching the laminate to form a plurality of unit sheets.
Absstract of: WO2026042968A1
The present invention relates to an all-solid-state battery manufacturing apparatus and an all-solid-state battery manufacturing method using same, and, more specifically, comprises: a separation unit for separating a protective film from an all-solid-state battery; and a transfer unit for transferring the separation unit toward the all-solid-state battery, wherein the separation unit includes: a head part for separating an outer region of the protective film, the outer region being disposed on an outer portion of the all-solid-state battery; a pusher part for separating a central region of the protective film, the central region being disposed on a central portion of the all-solid-state battery; and a gas control part connected to the head part or the pusher part, wherein the gas control part can control the flow of gas such that the protective film is held to the head part or the pusher part by suction.
Absstract of: WO2026042960A1
The present invention relates to a solid electrolyte membrane and an all-solid-state battery comprising same and, more specifically, to a solid electrolyte membrane and an all-solid-state battery comprising same, the solid electrolyte membrane comprising a sulfide-based solid electrolyte and an additive, wherein the additive comprises a compound represented by chemical formula 1.
Absstract of: WO2026042962A1
The present invention relates to a device for pressing an electrode body and a method for pressing an electrode body. More specifically, the device for pressing an electrode body may comprise: a die plate including a landing portion and a peripheral portion around the landing portion; a cavity structure disposed in the peripheral portion and including a cavity which exposes the landing portion and provides a space for accommodating an electrode body on the landing portion; a protective body for sealing the die plate and the cavity structure; and a release layer provided on at least one of a mounting surface, on which the electrode body is mounted, on the landing portion, or a sealing surface, which faces the electrode body, on the protective body.
Absstract of: WO2026042963A1
The present invention relates to a pressing device for an electrode body. More specifically, the pressing device for an electrode body comprises: a vessel extending horizontally, the vessel including an inner space for accommodating an object to be pressed; a heating jacket surrounding the vessel; at least one closure provided on at least one end of the vessel to seal the inner space; and a heating unit provided inside the vessel and adjacent to the rear surface of the at least one closure. The heating unit is configured to heat the lower part of the inner space.
Absstract of: WO2026040369A1
The present application relates to the technical field of batteries, and specifically relates to a battery cell casing and a battery cell. The battery cell casing comprises: a casing body, which is enclosed by a plate-like structure, such that an accommodating cavity is formed therein, wherein two ends of the plate-like structure are formed as connection portions, the connected portions are welded to form a welded portion on a side wall of the casing body, and part of the welded portion protrudes from an inner wall of the accommodating cavity to form a boss portion. In the battery cell casing of the present application, a welding extrusion amount is increased at a welded position on the inner side of the casing body, such that part of the welded portion protrudes from the inner wall of the accommodating cavity to form the boss portion. In this way, the welding strength of the casing body is ensured, the casing body is prevented from cracking at the welded portion, and the problem of poor welding of the battery cell casing caused by a significant height difference at a joint after assembly is also solved, thus effectively ensuring the safety of the battery cell.
Absstract of: WO2026040355A1
The battery cell (5) comprises a positive electrode sheet, a negative electrode sheet, and a separator; the positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer located on at least one side of the positive electrode current collector, and the positive electrode film layer comprises a lithium iron phosphate material and a pre-lithiation agent; and the separator is located between the positive electrode sheet and the negative electrode sheet. When the battery cell (5) is discharged to 2.5 V at a rate of 0.04 C, the lithium content is 4.0%-4.3% based on the total mass of the positive electrode film layer, thereby resulting in a battery cell (5) having both good cycle performance and energy density.
Nº publicación: WO2026040361A1 26/02/2026
Applicant:
CONTEMPORARY AMPEREX TECH CO LIMITED [CN]
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Absstract of: WO2026040361A1
A battery and an energy storage system, relating to the technical field of batteries. The battery comprises at least one battery cell group and a case, the case being used for accommodating the at least one battery cell group. The case comprises: a framework comprising a frame and at least one cross beam connected between opposite sides of the frame; a liquid cooling plate fixedly connected to the frame and fixedly connected to the cross beam, the liquid cooling plate being used for carrying the battery cell group and comprising a first sub-plate and a second sub-plate fixedly connected to each other, and the second sub-plate being located between the first sub-plate and the cross beam; and a connecting member connected to the cross beam and connected to at least one of the first sub-plate and the second sub-plate.
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