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1603
results.
Updated on
10/11/2025 [07:13:00]
Results 825 to 850 of 1603
Absstract of: WO2025226065A1
A positive electrode for lithium-sulfur batteries according to the present invention includes predetermined contents of polyacrylic acid, polyacrylamide, carboxymethyl cellulose, and styrene-butadiene rubber as binder polymers. The positive electrode for lithium-sulfur batteries has excellent adhesion between a positive electrode active material layer and a positive electrode current collector, and can ensure sufficient output performance when applied to lithium-sulfur batteries.
Absstract of: WO2025226061A1
Disclosed are a quenching solution, a method for manufacturing a surface-stabilized Li-rich manganese-based positive electrode material, and a secondary battery. The quenching solution contains a solvent, a lithium hydroxide or lithium salt, a reducing agent, and a phosphate, and the Li-rich manganese-based positive electrode material is treated by a quenching method in the quenching solution, thereby improving the initial coulombic efficiency and cyclic stability of the battery and alleviating voltage decay.
Absstract of: WO2025225694A1
Provided is a solid electrolyte sheet comprising a wet-laid nonwoven fabric containing synthetic fibers and a solid electrolyte. The wet-laid nonwoven fabric includes at least a flat first short fiber in which a ratio a/b of the length of a long axis a and the length of a short axis b of a cross section is 5 or more. In a cross section in the thickness direction of the solid electrolyte sheet, a ratio d/c of an area c of a solid part composed of fibers constituting the wet-laid nonwoven fabric and a solid electrolyte and an area d of a void part is 0 to 0.1. A ratio e/f of an area e of fibers constituting the nonwoven fabric in the solid part and an area f of the solid electrolyte f is 0.05 to 0.5.
Absstract of: WO2025222827A1
A positive electrode active material, comprising NaxRyPmOn, wherein 3.5≤x≤4.5, 2.5≤y≤3.5, 3.7
Absstract of: WO2025222812A1
The present application provides a positive electrode material, a preparation method thereof, a positive electrode sheet, a battery and an electrical apparatus, and relates to the field of batteries. The positive electrode material comprises sodium iron phosphate pyrophosphate and a carbon coating layer covering the surface of same; and the positive electrode material contains an impurity phase sodium ferric phosphate, the mass ratio of the impurity phase sodium ferric phosphate in sodium iron phosphate pyrophosphate being 14% or below. The positive electrode material has a low content of the impurity phase sodium ferric phosphate, such that the initial charging capacity can be effectively improved, and the electrochemical performance of the positive electrode material is effectively improved.
Absstract of: WO2025222796A1
A battery cell, a lithium ion battery, and an electric device. The battery cell comprises a wound electrode assembly, and the wound electrode assembly has bent areas. The wound electrode assembly comprises a negative electrode sheet and a positive electrode sheet, the negative electrode sheet comprises a plurality of first bent portions located in the bent areas, and the positive electrode sheet comprises a plurality of second bent portions located in the bent areas; the distance L1 between the concave surface of a second bent portion and the convex surface of an adjacent first bent portion located on the inner side of the second bent portion is greater than or equal to the distance L2 between the convex surface of the second bent portion and the concave surface of an adjacent first bent portion located on the outer side of the second bent portion, 17 μm≤L1≤34 μm, 14 μm≤L2≤34 μm, and L1≥L2; the equivalent charge rate c of the battery cell from 10% SOC to 80% SOC satisfies: 3C≤c≤8C. The battery cell can enable fast-charging lithium ion batteries to have good cycle performance and safety performance.
Absstract of: WO2025225640A1
A battery 1000 according to the present disclosure conforms with at least one configuration that is selected from the group consisting of (I) and (II) described below. (I) At least one layer that is selected from the group consisting of a first electrode layer 100, a second electrode layer 200, and a solid electrolyte layer 300 contains a solid electrolyte that contains a halogenated oxide. (II) The battery 1000 additionally comprises a side surface layer which contains a solid electrolyte that contains a halogenated oxide, and which is disposed on a side surface of at least one layer that is selected from the group consisting of the first electrode layer 100, the second electrode layer 200, and the solid electrolyte layer 300. The halogenated oxide includes at least one substance that is selected from the group consisting of a halogenated oxide A which is composed of Li, M1, X1, and O, and a halogenated oxide B which is composed of Li, M2, X2, and O. M1 represents at least one element that is selected from the group consisting of trivalent metal elements and trivalent metalloid elements, and M2 represents at least one element that is selected from the group consisting of tetravalent metal elements and tetravalent metalloid elements. X1 and X2 each represent at least one element that is selected from the group consisting of F, Cl, Br, and I.
Absstract of: WO2025226097A1
A battery assembly according to an embodiment of the present invention comprises: a plurality of battery cells; and a cell frame in which the battery cells are accommodated. A cooling flow path through which refrigerant flows in direct contact with at least some of the battery cells is provided inside the cell frame. The cooling flow path includes a plurality of cooling flow paths disposed along the longitudinal direction of the battery cells in which the battery cells extend. The flow direction of the refrigerant in any one of the plurality of cooling flow paths and that of the refrigerant in another one of the plurality of cooling flow paths are opposite to each other.
Absstract of: WO2025225989A1
A battery cell assembly relating to one embodiment of the present invention may comprise: a plurality of battery cells; a housing including an accommodation part in which the plurality of battery cells is accommodated; and at least one fixing member which is provided to cover at least a partial area of the outer surface of each of the plurality of battery cells so as to fix the battery cell to the inside of the accommodation part, and which has a battery cell exposure hole to allow a part of the battery cell to be exposed to the outside.
Absstract of: WO2025225986A1
A charging/discharging device for a secondary battery, related to one embodiment of the present invention, comprises: a chamber including one or more charging spaces in which trays that store secondary batteries can be individually accommodated, and having a charging gripper electrically connected to the secondary battery in the charging space; a thermoelectric cooling unit which includes a thermoelectric element and a cooling fin that transfers, into the vicinity thereof, cold air of a cooling side of the thermoelectric element, and which cools the air in the charging space at the upper part of the charging space; a first fan which suctions the cooling air in the vicinity of the thermoelectric cooling unit at the upper part of the charging space and which blows the cooling air toward the secondary battery accommodated in the tray; and a second fan, which suctions the air in parallel to the longitudinal direction of the secondary battery at the lower part of the charging space so that the cooling air flows in the longitudinal direction of the secondary battery.
Absstract of: WO2025222771A1
The present application belongs to the technical field of batteries. Provided are a battery cell, a battery and an electric device. The battery cell comprises a battery electrode sheet. The battery electrode sheet comprises a current collector, an active layer, a first insulating layer and a second insulating layer, wherein a connecting surface is formed on the current collector; the active layer covers part of the connecting surface, and a first edge is formed on the connecting surface; the first insulating layer covers part of the connecting surface, and the first insulating layer is arranged to extend along the first edge; and the second insulating layer covers the first insulating layer. The present application aims to reduce the risk of burr exposure during electrode sheet die-cutting, thereby reducing the risk of short circuits in battery cells.
Absstract of: WO2025222770A1
The present application provides a composite current collector, and a preparation method therefor and the use thereof. The composite current collector comprises: a polymer supporting layer; a transition layer, which is provided on the surface of at least one side of the polymer supporting layer, wherein the material of the transition layer comprises a nano metal material modified with a silane coupling agent, the nano metal material comprising a nano metal simple substance and/or a nano metal oxide; and a conductive layer, which is provided on the surface of the transition layer along a direction away from the polymer supporting layer. In the present application, introducing the nano metal material modified with a silane coupling agent as a transition layer can tightly combine the organic and inorganic interfaces, and improve the bonding force between the polymer supporting layer and the transition layer; in addition, the particle aggregation degree can be reduced by means of the modification of the silane coupling agent, such that the particles are evenly distributed in the transition layer, thereby improving the bonding force between the conductive layer and the transition layer. The composite current collector has excellent bonding force and stability; and the safety performance and high-temperature cycle performance of a battery prepared on this basis are significantly improved.
Absstract of: WO2025222739A1
The present application provides a multi-cavity battery pack structure, comprising a housing, a cover plate, and a plurality of battery cell units. The battery cell units are arranged in the housing, and the cover plate covers the end face of one end of the housing. The housing comprises a housing body and a plurality of cavity units arranged in the housing body, a wall plate is provided between every two adjacent cavity units, and the wall plate respectively abuts against the bottom surface of the housing body and the side surfaces of the housing body; and a first boss is provided at one end of the side of each cavity unit close to the cover plate, and a second boss is arranged at the other end thereof. Each battery cell unit is arranged in the corresponding cavity unit, and the battery cell unit is arranged between the first boss and the second boss; the battery cell units and the cavity units are arranged in a one-to-one correspondence manner; the second bosses are pairwise communicated with each other; and the first bosses located in the middle are pairwise communicated with each other, and the first bosses located at the two ends are independently arranged. The present application achieves low costs and environmental friendliness.
Absstract of: WO2025225977A1
The present invention provides a battery module assembly comprising: a plurality of battery cells; a pair of end plates disposed at both sides of the plurality of battery cells; and a clamp extending to surround the plurality of battery cells and welded to the pair of end plates, wherein at least one of the pair of end plates includes a through hole and a first stopper portion formed to protrude beyond the surrounding area in a direction away from the battery cells by means of the through hole to support the clamp.
Absstract of: WO2025225582A1
Provided is a bonding glass for bonding a β-alumina solid electrolyte to an α-alumina insulator. The bonding glass contains: 29.0-38.0 mass% of SiO2, 14.0-22.0 mass% of Al2O3, 29.0-42.5 mass% of B2O3, 5.0-8.5 mass% of MgO, 2.5-6.5 mass% of Na2O, less than 0.20 mass% of Fe2O3, less than 0.25 mass% of CaO, less than 0.20 mass% of K2O, and less than 0.50 mass% of As2O3.
Absstract of: WO2025225985A1
The present invention relates to an electrolyte composition for a lithium secondary battery. The electrolyte composition for a lithium secondary battery comprises a fluorine-substituted linear ester-based solvent and a fluorine-substituted acrylic additive as a non-aqueous organic solvent and an electrolyte additive, respectively, and thus can uniformly form a solid electrolyte membrane layer (SEI layer), having high lithium-ion conductivity and excellent heat resistance, on the surface of a negative electrode when the lithium secondary battery is activated. Consequently, the reactivity between a negative electrode active material and the electrolyte composition is remarkably lowered, such that the temperature (that is, the exothermic onset temperature) at which heat generation between the negative electrode active material and the electrolyte composition begins increases, and thus heat generation caused by negative electrode deterioration or the like can be suppressed. Furthermore, a lithium secondary battery comprising the electrolyte composition can minimize side reactions of the electrolyte composition, which occur on the surface of the negative electrode when exposed to high temperatures, and thus has the advantage of exhibiting excellent high-temperature safety.
Absstract of: WO2025225536A1
A battery according to the present disclosure comprises: an electrode group that includes a first electrode, a second electrode, and a separator, and that is wound in a cylindrical shape; and a tab that is connected to the first electrode. The tab has: a thin section that is formed at the winding-direction end of the electrode group; and a main section that is thicker than the thin section.
Absstract of: WO2025225539A1
Provided are a lithium secondary battery, a separator for a lithium secondary battery, and a method for suppressing the porosity of a negative electrode, the lithium secondary battery comprising: a positive electrode; a negative electrode operated by dissolution and precipitation of metallic lithium; an electrolyte containing a non-aqueous solvent and a lithium salt and having a lithium salt concentration of at least 2.0 mol/L; and a separator having a polyolefin microporous membrane and a porous layer provided on one surface or both surfaces of the polyolefin microporous membrane, wherein the porous layer contains a wholly aromatic polyamide, and the film thickness of the porous layer is 5-20 μm for each surface of the separator.
Absstract of: WO2025222735A1
Provided are a battery (100) and an electric apparatus, which belong to the technical field of batteries. The battery (100) comprises a case (10), battery cell groups (20) and support members (30). The case (10) comprises a bottom plate (11). The battery cell groups (20) are accommodated in the case (10), and each battery cell group comprises at least one battery cell (21), the battery cell (21) comprising a casing (211), electrode terminals (212) and a pressure relief mechanism (213). The casing (211) has a wall portion (2111), wherein the wall portion (2111) is arranged to face the bottom plate (11) in the thickness direction of the bottom plate (11); and both the electrode terminals (212) and the pressure relief mechanism (213) are disposed on the casing (211), and at least one of the electrode terminals (212) and the pressure relief mechanism (213) is disposed on the wall portion (2111). The support members (30) are arranged between the wall portion (2111) and the bottom plate (11) and are connected to the wall portion (2111), and in the thickness direction of the bottom plate (11), each support member (30) has a first surface (31) facing away from the wall portion (2111), wherein the first surface (31) is closer to the bottom plate (11) than the electrode terminals (212) and the pressure relief mechanism (213). The support members (30) can protect the electrode terminals (212) or the pressure relief mechanism (213) of the battery cell (21), so as to reduce the risk of th
Absstract of: WO2025222736A1
The present application belongs to the technical field of batteries. Provided are a battery and an electric apparatus. The battery comprises at least one battery cell group, first busbar components and fasteners, wherein the battery cell group comprises a plurality of battery cells stacked in a first direction, each battery cell comprising a casing, electrode terminals and an electrode assembly, the electrode terminals being disposed on the casing, and the electrode assembly being accommodated in the casing and being electrically connected to the electrode terminals; the first busbar components are electrically connected to electrode terminals of two adjacent battery cells in the same battery cell group; and the fasteners are connected to casings of the plurality of battery cells in the battery cell group. By means of fasteners, when battery cells expand in a first direction, the change in the spacing between electrode terminals of two adjacent battery cells in the first direction can be reduced, such that the torque or tensile force between the electrode terminals and first busbar components is absorbed and shared by the fasteners, which is conducive to reducing the risk of a connection failure between the electrode terminals and the first busbar components.
Absstract of: WO2025222722A1
Provided are a battery (1100), an electric device, and an assembly method for the battery (1100), relating to the technical field of batteries. The battery (1100) comprises at least one battery module (1120). Each battery module (1120) comprises battery cells (1121), a heat exchanger (1122) and a bonding layer (1123), wherein the heat exchanger (1122) is provided with a heat exchange surface (11222), and channels (11221) are formed on the heat exchanger (1122); and the bonding layer (1123) is arranged between the outer surface of each battery cell (1121) and the heat exchange surface (11222), thus bonding each battery cell (1121) to the heat exchange surface (11222). The curing time of a binder forming the bonding layer (1123) can be shortened, thereby improving the assembly efficiency of the battery (1100).
Absstract of: WO2025225535A1
A battery according to the present disclosure comprises a wound electrode group including a first electrode, a second electrode, and a separator. The first electrode includes a current collector, an active material layer, and a lead. The lead is joined to an exposed portion of the current collector where the active material layer is not provided. The electrode group further includes an insulating member attached to the exposed portion, and a protective tape covering at least a portion of the insulating member and at least a portion of the lead. The exposed portion is covered by at least one selected from the group consisting of the protective tape and the insulating member.
Absstract of: WO2025225473A1
In an intermittent charging device of a conventional secondary battery module, two charging periods are required, namely, a charging period for a charging capacitor and a period for charging a secondary battery by the charging capacitor. Therefore, the charging time becomes relatively long as compared with that of a general charging device which continuously charges a secondary battery. By adding a relay capacitor and a relay capacitor switch to an intermittent charging circuit, the relay capacitor is charged during a period in which a charging capacitor charges the secondary battery, and the charge is supplied to the charging capacitor in a short time after the end of charging the secondary battery, immediately starting the period in which the charging capacitor charges the secondary battery. This allows intermittent charging to be performed in a short time that is essentially the same as in continuous charging.
Absstract of: WO2025225455A1
This secondary battery comprises: an electrode body in which a positive electrode (11) and a negative electrode (12) are wound, with a separator (13) being interposed therebetween; an outer can casing which houses the electrode body and an electrolyte solution; and a negative electrode current collector plate (17) which is disposed on the bottom of the outer can casing and is electrically connected to the outer can casing. The negative electrode (12) has a core body and a mixture layer that is provided on the core body, and a negative electrode core body exposure part (41) is joined to the negative electrode current collector plate (17). The mixture layer contains a silicon-containing material as an active material, and 5 mass% or more of the silicon-containing material is contained in a lower region (43) and an upper region (44) which each have a length ratio of 20% or less in the vertical direction. The negative electrode charge capacity is 470 mAh/g or more, and the silicon-containing material includes a low expansion silicon-containing material that has a particle expansion coefficient of 210% or less in the lower region.
Nº publicación: WO2025225333A1 30/10/2025
Applicant:
ORGANO CORP [JP]
\u30AA\u30EB\u30AC\u30CE\u682A\u5F0F\u4F1A\u793E
Absstract of: WO2025225333A1
A battery accommodation body 1 includes: a housing 3 which accommodates battery cells 2; an active gas removal part 4 which is provided in the housing 3 and removes active gas generated from the battery cells 2; and a blower part 5 which is provided in the housing 3 and circulates a gaseous body in the housing 3 while distributing the gaseous body to the active gas removal part 4.
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