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1313
results.
Updated on
13/08/2025 [07:30:00]
Results 525 to 550 of 1313
Absstract of: EP4597603A1
A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode mixture layer. The positive electrode mixture layer contains a positive-electrode active material, a conductive material, and a binder. The conductive material includes both carbon black and single-wall carbon nanotubes. The binder includes at least one selected from the group consisting of nitrile group-containing rubber and a cellulose derivative.
Absstract of: EP4597602A1
A disclosed positive electrode is a positive electrode for a nonaqueous electrolyte secondary battery. The positive electrode includes a positive electrode mixture layer. The positive electrode mixture layer contains a positive-electrode active material, a conductive material, and a binder. The conductive material includes both single-wall carbon nanotubes and multiwall carbon nanotubes. The binder includes at least one selected from the group consisting of nitrile group-containing rubber and a cellulose derivative.
Absstract of: EP4597609A1
A disclosed positive electrode for a nonaqueous electrolyte secondary battery includes a positive electrode mixture layer. The positive electrode mixture layer contains at least one compound selected from the group consisting of carboxylic acids and carboxylic acid anhydrides, a positive-electrode active material, a conductive material, a fluorine-containing polymer, and a dispersant. The positive-electrode active material includes a composite oxide represented by a composition formula LiyNixM(1-x)O2-δ (where x, y, and δ satisfy 0.6≤x≤1, 0
Absstract of: EP4597639A1
A secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte having lithium ion conductivity. The negative electrode includes a negative electrode current collector. The negative electrode current collector includes a resin film, and a transition metal layer laminated with the resin film. The resin film includes a base resin layer, and a surface resin layer, and at least the surface resin layer contains a nitrogen-containing resin. Accordingly, in the secondary battery, it is possible to suppress the embrittlement of the negative electrode current collector including a resin film.
Absstract of: EP4597713A1
A battery pack is disclosed. The battery pack comprises at least one part of a housing, at least one battery system arranged in the at least one part of the housing, at least one containing member contacted with the at least one part of the housing and the at least one battery system, the at least one containing member comprises a self-expendable filler material, the at least one containing member with the self-expendable filler material is contacted with the at least one part of the housing to provide stability to the battery pack and/or to the at least one battery system with respect to the at least one part of the housing.
Absstract of: EP4597718A1
A battery housing (100) for holding a plurality of battery cells (102) for a vehicle, the battery housing comprising: a cell compartment (104) comprising an opening (106); a vent channel (108) fluidly connected to the cell compartment via the opening, the vent channel comprising a first outlet (110) and a second outlet (112), each of the first and second outlet being fluidly connected to an outside of the battery housing; and a thermal expansion material (114) arranged in a flow path between the opening and the first outlet, the thermal expansion material being configured to expand to prevent a flow through the first outlet at a predetermined threshold temperature.
Absstract of: EP4597654A1
The present disclosure provides a battery module, an apparatus and method for manufacturing said battery module, and a method of disassembling said battery module. The battery module of the present disclosure is comprised of a plurality of pouch battery cells arranged within a structural enclosure, such that the battery module is folded about a plurality of module folding lines to form a folded battery module. Embodiments of the battery module provide improved mechanical strength and stiffness, improved safety, lower weight and cost, and provides further improvements to disassembly and recycling of the battery module.
Absstract of: WO2024107446A2
A battery' system, and associated, methods are disclosed. In one aspect, a battery system includes a. stack of battery cells, including two or more different thermal zones. Aspects are shows with two or more different thermal regulating members located between battery cells in the stack of lithium-ion battery cells at dividing location between the thermal zones.
Absstract of: WO2024067895A1
The object of the invention is a safety system of a battery module (1 ) and a method of operation of the safety system of the battery module (1 ) of the present invention, wherein the safety system of the battery module (1 ) comprises a reservoir (2) of a flame retardant for storing the flame retardant (3) connected to the battery module (1 ), wherein the battery module (1 ) comprises a set of at least 3 battery cells, wherein the battery cells are arranged such as to form a space between them for the flowing of the heat transfer medium (4), and that the battery module (1 ) comprises a cooling circuit (5) of the battery module comprising an inlet (6) of the heat transfer medium, an outlet (7) of the heat transfer medium, and a manifold (8) of the heat transfer medium, wherein the manifold (8) of the heat transfer medium is connected to the inlet (6) of the heat transfer medium and comprises at least two mutually spaced apart mouths for the outflow of the heat transfer medium (4) into the space for the flowing of the heat transfer medium (4) between the battery cells, wherein the reservoir (2) of the flame retardant is connected to the manifold (8) of the heat transfer medium. The method of operation of the safety system of the battery module (1 ) lies in the fact that when the first critical temperature is reached, the access of the flame retardant (3) to the manifold (8) of the heat transfer medium, through which the flame retardant (3) is discharged through the mouths for t
Absstract of: EP4597715A1
This application relates to a battery (100) and an electrical device. The battery (100) includes: a shell structure (10); and a battery cell (20), including a pressure relief structure (24). The shell structure (10) includes a first sidewall (14) oriented toward the pressure relief structure (24). A part of the first sidewall (14) is recessed toward outside of the shell structure (10) to form a recessed structure (141). An orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141). A part of the first sidewall (14) is recessed outward to form the recessed structure (141), and the orthographic projection of the pressure relief structure (24) toward the first sidewall (14) at least partially falls within the recessed structure (141), and therefore, a distance between the pressure relief structure (24) and the first sidewall (14) can be increased, and a cushion space (1411) between the pressure relief structure and the first sidewall (14) can be enlarged. In this way, when the pressure relief structure (24) relieves pressure, an instantaneous heat flow impact force can be cushioned in the cushion space (1411), thereby reducing a force exerted on the fireproof structure (40) and the shell structure (10), avoiding damage to the fireproof structure (40) and the shell structure (10), and eliminating a threat to the external environment.
Absstract of: EP4597651A1
The present specification relates to an embodiment of an electrode material winding apparatus, in which an electrode material is processed so that an electrode tab is not disposed in an impregnation region into which an electrolyte can be injected, and the electrode material is wound so that the electrode tab is arranged only in a specific region excluding the impregnation region, thereby winding the electrode material such that the electrolyte is injected through the impregnation region.
Absstract of: EP4597623A1
A positive electrode active material for a non-aqueous electrolyte secondary battery according to one embodiment comprises a lithium transition metal composite oxide represented by the compositional formula LiαNaβNi1-b-cMnbXcOd (where X is at least one element selected from metallic elements other than Li, Na, Ni, and Mn, 0.80≤α≤1.20, 0≤β≤0.05, 0.80≤α+β≤1.20, 0.25
Absstract of: EP4597636A1
Provided is a power storage device binder aqueous solution comprising: a water-soluble polymer; a (meth)acrylamide; and a (meth)acrylonitrile, wherein the water-soluble polymer includes 0.01-1 mass% of a polymerization initiator unit, and the content of the (meth)acrylamide with respect to the water-soluble polymer is 0.01-1,000 mass ppm (exclusive of 1,000 mass ppm).
Absstract of: EP4597735A1
This cylindrical battery (10) is provided with a positive electrode lead (20) which is led out from an electrode body (14) to a sealing body (17) side, and which is bonded to the inner surface of the sealing body (17). The sealing body (17), which closes an opening of an outer package can (16), has a projected part (40) that is arranged along a concentric circle of the outer circumference circle of the sealing body (17) on the electrode body (14)-side inner surface (30). The positive electrode lead (17) has, sequentially in the lead-out direction from the electrode body (14) side toward the sealing body (17) side, a first bent part (23) that is bent radially inward and a second bent part (24) that is bent into a generally U-shape toward the first bent part (23) side. The second bent part (24) overlaps with a region R, which is surrounded by the projected part (40), in the axial direction.
Absstract of: EP4597635A1
Provided are a binder storage container for a secondary battery and a binder product for a secondary battery that enable long-term storage of even a binder composition that can inhibit aggregate formation while also improving adhesiveness of a functional layer. The binder storage container for a secondary battery includes an accommodating part where a binder composition for a secondary battery is to be accommodated. The accommodating part is obtained through shaping of a resin composition that contains a polyolefin resin having a weight-average molecular weight of 400,000 or more as a main component. The accommodating part has a wall thickness of 2.5 mm or more and has a durability of 72 hours or more in an environmental stress cracking test in accordance with JIS K-6761 using dialkyl sodium sulfosuccinate aqueous solution of 1.5 mass% in concentration.
Absstract of: WO2024067894A1
The object of the invention is a device (1 ) for regulating the temperature of battery cells (2) comprising a casing (3), a cover (11), a cavity (4) inside the casing (3), at least one inlet (5) of a heat transfer medium into the cavity (4) and at least one outlet (6) of the heat transfer medium from the cavity (4), wherein at least 3 battery cells (2) are located in the cavity (4) and surrounded by the heat transfer medium (7), wherein the casing (3) comprises a first side (8) of the casing and a second side (9) of the casing and the cavity (4) has a mouth (10) adjacent to the first side (8) of the casing closed by the cover (11). The device further comprises an elastic plate (12), wherein the elastic plate (12) comprises a number of openings (13) corresponding to the number of battery cells (2) inside the cavity (4), where each battery cell (2) passes through one opening (13) and the cross-section of the openings (13) in the elastic plate (12) is as large as or smaller than the cross-section of the battery cells (2), wherein the cover (11) comprises electrical conductors (14) connected to the battery cells (2) and is adjacent to the first side (15) of the elastic plate, wherein the second side (16) of the elastic plate is in contact with the heat transfer medium (7).
Absstract of: WO2024067893A1
The object of the invention is a heat exchanger with regulation of the current of a heat transfer medium comprising an inlet port (1) for the heat transfer medium, an outlet port (2) for the heat transfer medium, a thermally regulated component (3) comprising heat transfer surfaces (4), a first path (5) of the flow and a second path (5) of the flow of the heat transfer medium in heat transfer contact with different heat transfer surfaces (4) of the thermally regulated component, and an inlet manifold (6) comprising an inlet integrated channel (7) connected to the inlet port (1), wherein the first path (5) of the flow and the second path (5) of the flow are connected by their first end to the inlet integrated channel (7) and by their second end to the outlet port (2). The inlet integrated channel (7) comprises a first inlet channel (8) and a second inlet channel (9), wherein the first inlet channel (8) connects the inlet port (1 ) to the mouth (10) of the first path from the inlet integrated channel (7) and the second inlet channel (9) connects the inlet port (1) to the mouth (10) of the second path from the inlet integrated channel (7), wherein furthermore the inlet manifold (6) in the first inlet channel (8) comprises a first valve (11) for the regulation of the flow of the heat transfer medium through the first inlet channel (3).
Absstract of: WO2024073496A1
A battery cell may include a first electrode coupled with a first current collector, a second electrode coupled with a second current collector, and a separator interposed between the first electrode and the second electrode. The battery cell may further include a current controller including one or more shape memory effect (SME) materials in a deformed conformation. The shape memory effect (SME) materials may recover at least partially an original conformation of the shape memory effect (SME) materials in response to one or more stimuli. The current controller may have a lower conductivity when the shape memory effect (SME) materials are in the original conformation than when the shape memory effect (SME) materials are in the deformed conformation such that the shape memory effect (SME) materials recovering the original conformation reduces current flow within the battery cell.
Absstract of: CN119948642A
Provided herein are electrolyte additives and formulations for energy storage devices having improved performance. The electrolyte comprises at least one carbon dioxide source dissolved in a fluorinated solvent. The improved performance may be achieved as improved cycling stability.
Absstract of: MX2025003265A
Fluoropolymer compositions for use as binder in a lithium-ion secondary battery electrodes are described, as well as methods of their manufacture, and electrode compositions and lithium-ion secondary batteries utilizing such. The fluoropolymer compositions are dry friable agglomerates manufactured by cocoagulation of aqueous dispersions of a first tetrafluoroethylene polymer having a melt creep viscosity of at least about 0.5 x 1011 poise, and a second polymer different from the first polymer. These fluoropolymer compositions afford lithium-ion secondary batteries with improved performance, through such as improved loading of electrodes, and stability of PTFE binder in the anode, and result in lithium-ion secondary batteries having improved performance, such as improved capacity and improved reversible capacity retention.
Absstract of: WO2024073410A1
Ternary electrolyte compositions are described, having a primary solvent, a mediating solvent, a diluent, and at least one lithium salt.
Absstract of: WO2024073001A1
Embodiments of the present disclosure include an anode for a battery including a substrate, a metal film disposed on the substrate, and a film stack disposed on the metal film. The film stack includes a lithium carbonate film and a lithium halide film disposed on the lithium carbonate. The lithium carbonate film is disposed on the metal film.
Absstract of: AU2023354916A1
The subject invention pertains to design of strategies that enable the more effective utilization of active intercalation materials in the production of lithium ion batteries. Na- and K-ion intercalation "props" open the ID tunnel, reduces electrostatic repulsions between inserted Li-ions, and entirely modifies diffusion pathways, enabling orders of magnitude higher Li-ion diffusivities and accessing higher capacities. The subject invention provides materials and batteries comprising the materials produced via the methods disclosed within this application.
Absstract of: WO2024073512A2
A device can include a battery electrode that comprises a substrate having one or more polymeric materials and a layer disposed on the substrate. The layer can include one or more conductive materials, have a thickness no greater than 12 micrometers, and have a porosity of at least 5% by volume. Additionally, an electrode layer including a seed layer can comprise a number of fused nanoparticles. The electrode layer can also include a lithium metal layer disposed on the number of fused nanoparticles. The electrode layer can be formed by producing, on a polymeric current collector layer, a seed layer that includes nanoparticles. A formulation to form the seed layer can include nanoparticles having ligands and then removing the ligands using one or more thermal and/or one or more chemical treatment processes. The seed layer can be electrically conductive, acting as the current collector when disposed on a polymeric substrate.
Nº publicación: EP4594046A2 06/08/2025
Applicant:
OHIO STATE INNOVATION FOUNDATION [US]
SOTERIA BATTERY INNOVATION GROUP INC [US]
Ohio State Innovation Foundation,
Soteria Battery Innovation Group Inc
Absstract of: TW202425391A
Disclosed herein are joining methods (e.g., methods of forming a joined material) and devices comprising materials joined by said methods. For example, the disclosed subject matter related to methods of joining one or more metallized polymer current collectors together and/or to a tab. For example, the methods can comprise: placing one or more metallized polymer current collector proximate a tab, such that at least a portion of the metallized polymer current collector(s) overlaps with at least a portion of the tab in an overlap region; placing a conductive material proximate the overlap region; inducing flow of the conductive material such that the conductive material flows at least between the portion of the metallized polymer current collector(s) and the portion of the tab; and subsequently solidifying the conductive material, thereby forming a joint that joins the metallized polymer current collector(s) to the tab.
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