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1455
resultados
Última actualización
14/08/2025 [07:17:00]
Resultados 200 a 225 de 1455
Resumen de: WO2025165002A1
Provided are a battery manufacturing system and a battery manufacturing method. One system may comprise: a first cutter configured to cut a first electrode sheet into a first electrode portion having a first length; a second cutter configured to cut a second electrode sheet into a second electrode portion having a second length; a winder configured to wind the first electrode portion, the second electrode portion, and a separator to form an electrode assembly; and an identification information assigning device configured to assign identification information to the electrode assembly on the basis of a cut count value of the first electrode sheet and/or a cut count value of the second electrode sheet, and/or a first pattern indicator of the first electrode sheet and/or a second pattern indicator of the second electrode sheet.
Resumen de: WO2025164997A1
The battery pack according to an embodiment of the present invention comprises: a plurality of battery cells; a pack frame including a bottom frame and side frames forming an accommodation space in which the battery cells are accommodated; and a refrigerant which flows and directly cools the battery cells in the accommodation space. An inlet port for introducing the refrigerant and an outlet port for discharging the refrigerant are provided in the side frames. Hollows are formed inside the side frames, and each of the hollows communicates with the inlet port and the outlet port.
Resumen de: WO2025164984A1
A battery module, and a battery pack and a vehicle including same are disclosed. A battery module according to one embodiment of the present invention includes: a battery cell stack in which a plurality of battery cells are stacked: a case in which the battery cell stack is accommodated; and a cooling member disposed between the plurality of battery cells, wherein the battery cells include a first battery cell in which electrode leads are formed on both sides and a second battery cell in which electrode leads are formed on only one side.
Resumen de: WO2025162326A1
Disclosed are a battery pack, a battery cabin, and a fire fighting method. The battery pack comprises: a box body used for placement of battery cells and protecting a battery; a protection module used for discharging smoke out of a battery environment and cooling the battery; a high-temperature early warning module used for decomposing when thermal runaway occurs in the battery, so that a fire extinguishing agent can completely cover the battery; and a battery management apparatus used for monitoring in real time the voltage and temperature of the battery cells and the concentration of the smoke, and giving an early warning about the thermal runaway state of the battery.
Resumen de: WO2025162466A1
A battery assembly and an electric device. The battery assembly comprises a battery and a bonding member. The battery comprises a packaging bag and a tab. The packaging bag comprises a top wall and a first side wall, and the packaging bag comprises a first sealing part. The first sealing part is connected to the top wall, and the tab extends out of the first sealing part. The bonding member comprises a first bonding layer, a second bonding layer, and a conductive layer. The first bonding layer is connected to the first side wall. The second bonding layer is configured to be connected to an external battery compartment. One side of the conductive layer is connected to the first bonding layer, and the other side of the conductive layer is at least partially connected to the second bonding layer. The conductive layer comprises a first body and a first extension section connected to the first body, the first body is connected to the first side wall, and the first extension section extends to the side of a second side wall away from the first side wall or the side of the first sealing part away from the first side wall. The second bonding layer is configured such that: when the conductive layer and the external battery compartment are electrified, the second bonding layer has weakened viscosity or loses viscosity. The battery assembly can reduce the risk of damaging the battery and improve the space utilization rate.
Resumen de: WO2025162187A1
An energy storage apparatus (100) and an electric device (400), which relate to the technical field of energy storage. The energy storage apparatus (100) comprises: an electrode assembly (20), which comprises a positive electrode sheet (21), a negative electrode sheet (22) and a separator (23), wherein the positive electrode sheet (21) comprises a current collector (211) and an active material layer (212), the active material layer (212) contains first lithium-containing compounds (Li1) and second lithium-containing compounds (Li2), and the second lithium-containing compounds (Li2) are lithium-replenishment particles and each comprise a lithium-replenishment core (Li21) and a shell (Li22); and a connected region (AA) and a separated region (BB) are formed between the lithium-replenishment core (Li21) and the shell (Li22), and in a cross section of the positive electrode sheet (21), the ratio of the path length of the shell (Li22) of each lithium-replenishment particle in the connected region (AA) to the total perimeter of the shell ranges from 5% to 45%.
Resumen de: WO2025165008A1
A battery pack according to an embodiment of the present invention includes: a pack case having a first inner surface, a second inner surface facing the first inner surface, and an inner space between the first inner surface and the second inner surface; and multiple modules arranged in the inner space of the pack case and including multiple secondary batteries having a first end portion having a vent portion and a second end portion opposite to the first end portion, wherein each secondary battery is arranged such that an imaginary center line passing through the first end portion and the second end portion is not parallel or orthogonal to the first inner surface and the second inner surface, and in each module, when at least one secondary battery is arranged to have the first end portion closer to the first inner surface than the second end portion, another secondary battery is arranged to have the first end portion closer to the second inner surface than the second end portion.
Resumen de: WO2025164985A1
A battery module, and a battery pack and a vehicle including same are disclosed. The battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a case in which a battery cell stack is accommodated; and a cooling member disposed between the plurality of battery cells, wherein the battery cell includes only first battery cells having an electrode lead formed on each of the two sides thereof, or includes only second battery cells having electrode leads formed on one side thereof.
Resumen de: WO2025164929A1
A battery according to the present invention comprises: an electrode; an electrode tab extending from the electrode; and a lead tab including a first material and coupled to the electrode tab. The electrode tab includes: a first portion including a coupling surface that is coupled to the lead tab and including the first material; and a second portion spaced apart from the lead tab and including a first layer including the first material, a second layer including the first material, and a third layer interposed between the first layer and the second layer and including a second material different from the first material.
Resumen de: WO2025164921A1
This test device for power prediction comprises: a database including a plurality of power map tables indicating power according to SOCs and temperatures; a tester executor, which generates a plurality of power prediction conditions by combining a plurality of SOCs and a plurality of temperatures in the power map tables for a battery device, provides, to a battery management system, each of the plurality of power prediction conditions and a power prediction command corresponding to each of the power prediction conditions, and receives a plurality of power prediction values according to the plurality of power prediction conditions; and a test comparator for comparing each of the plurality of power prediction values to a normal range defined by a plurality of reference power values in the power map table based on the power prediction condition corresponding to the respective power prediction value.
Resumen de: WO2025164928A1
The present invention includes: a current collector separation step of separating a current collector and a positive electrode active material layer by treating a positive electrode, determined to be defective in a battery manufacturing process, with an organic solvent; and a drying step of performing heat treatment on the positive electrode active material layer separated from the current collector, and the present invention enables effectively recycling the positive electrode material determined to be waste in the battery manufacturing process.
Resumen de: WO2025162183A1
A cover plate assembly, a battery cell and a battery pack. The cover plate assembly comprises a cover main body, heat conduction sheets and posts; the cover main body has a first surface and a second surface which are oppositely arranged; the heat conduction sheets are in contact with the first surface; each post comprises an adapter plate and a sub-post body, the adapter plates being in contact with the second surface, each sub-post body comprising a conduction column and a connection part, the connection parts abutting against the surfaces of the heat conduction sheets away from the first surface, and each conduction column passing through a heat conduction sheet and the cover main body to be connected to an adapter plate. The provided cover plate assembly enables the heat conduction sheets to effectively dissipate heat of the sub-post bodies, so as to effectively reduce the temperature rising speed of the sub-post bodies; and enables the heat conduction sheets to perform direct heat exchange with the first surface of the cover main body, such that the distance between the heat conduction sheets and the adapter plates is closer, thus effectively reducing the temperature rising speed of the adapter plates.
Resumen de: WO2025162389A1
A negative electrode active particle (100) and a preparation method therefor, a battery (400) and an electronic device (500). The negative electrode active particle (100) comprises: a porous carbon matrix (10), the porous carbon matrix (10) having a plurality of pores (11), and the plurality of pores (11) comprising micropores (111), mesopores (112) and macropores (113), wherein, with respect to the plurality of pores (11), the number of the micropores (111) accounts for 5% to 35%, the number of the mesopores (112) accounts for 60% to 90%, and the number of the macropores (113) accounts for 4% to 6%; and silicon particles (20), the silicon particles (20) being distributed in the plurality of pores (11). The negative electrode active particle (100) has a lower expansion rate and a higher cycle capacity retention rate.
Resumen de: WO2025162185A1
Provided in the present disclosure is a lithium-ion battery. The lithium-ion battery comprises a negative electrode sheet and a positive electrode sheet. The positive electrode sheet comprises a nickel-based positive electrode active material, a negative electrode active layer of the negative electrode sheet comprises a negative electrode active material and nickel, and the negative electrode active material comprises a silicon-carbon material and graphite. The components of the negative electrode active layer satisfies 9500≤α*d/η≤24500, wherein α is the content of nickel in the negative electrode active layer, η is the content percentage by mass of silicon in the negative electrode active layer, and d is the median particle diameter of the negative electrode active material. The negative electrode sheet comprises a carbon-silicon negative electrode active material, such that good cycle performance and safety performance can be taken into account while improving the energy density of the lithium-ion battery.
Resumen de: WO2025164907A1
Provided is an all-solid-state secondary battery, comprising: a positive electrode layer; a negative electrode layer; a solid electrolyte layer between the positive electrode layer and the negative electrode layer; and a solid separator disposed at least one of between the positive electrode layer and the solid electrolyte layer and between the negative electrode layer and the solid electrolyte layer, wherein the negative electrode layer includes a negative electrode current collector and a first negative electrode active material layer on one side of the negative electrode current collector, the solid electrolyte layer includes a sulfide-based solid electrolyte and an inorganic filler, and the inorganic filler includes lithium metal oxyhalide represented by chemical formula 1. The solid separator may include an inorganic filler or may include an inorganic filler and a sulfide-based solid electrolyte.
Resumen de: WO2025164710A1
This electrochemical device comprises a positive electrode, a negative electrode, and a lithium ion-conductive electrolyte, said negative electrode being provided with a negative electrode current collector, and a negative electrode material layer supported on the negative electrode current collector. The negative electrode material layer comprises a negative electrode active material that is reversibly doped with lithium ions. The negative electrode active material comprises a carbon material. The surface part of the negative electrode material layer has a coated region. A ratio A/B of a peak intensity A of a peak appearing where a binding energy is in the range of 530-534 eV in an O1s spectrum obtained by measuring the coated region using X-ray photoelectron spectroscopy relative to a peak intensity B of a peak appearing where a binding energy is in the range of 684.8-685.3 eV in an F1s spectrum is at least 4.0 throughout the range of depths of at most 50 nm inward from the surface of the coated region.
Resumen de: WO2025164669A1
A non-aqueous electrolyte secondary battery (10) disclosed herein includes: an electrode group (14) including a positive electrode (11), a negative electrode (12), and a separator (13); and a non-aqueous electrolyte. The negative electrode (12) includes a negative electrode current collector and a negative electrode mixture layer disposed on the negative electrode current collector. The activation energy at 100-135°C of the separator 13 measured via dynamic viscoelasticity measurement is 400-700 kJ/mol.
Resumen de: WO2025164898A1
A battery module according to one embodiment of the present invention comprises: a module housing having an accommodation space; and a plurality of pouch-type battery cells horizontally arranged inside the accommodation space and stacked in a thickness direction. The battery cells may comprise: a body portion for accommodating an electrode assembly; and a sealing portion extending from an edge of the body portion and having at least a portion folded downward to prevent moisture from accumulating.
Resumen de: WO2025162186A1
An energy storage apparatus (100), comprising an electrode assembly (20), wherein the electrode assembly (20) comprises a positive electrode sheet (21), a negative electrode sheet (22) and a separator (23); an active material layer (212) of the positive electrode sheet (21) contains first lithium-containing compounds (Li1) and second lithium-containing compounds (Li2), and the second lithium-containing compounds (Li2) are lithium-replenishment particles and each comprise a lithium-replenishment core (Li21) and a shell (Li22); and there are a connected region (AA) and a separated region (BB) between the lithium-replenishment core (Li21) and the shell (Li22), the standard deviation of path length ratios of M lithium-replenishment particles is less than or equal to 0.18, and the path length ratio of each lithium-replenishment particle refers to the ratio, in a cross section of the positive electrode sheet (21), of the path length of the shell (Li22) of the lithium-replenishment particle in the connected region (AA) to the total perimeter of the shell (Li22). By setting the standard deviation of the path length ratios of the shells (Li22) of the M lithium-replenishment particles in the connected regions (AA), it is ensured that lithium-ion deintercalation capabilities of the lithium-replenishment particles in the active material layer (212) are close, and uniform lithium replenishment throughout the active material layer (212) is thus ensured, thereby prolonging the cycle life of
Resumen de: WO2025162133A1
The present disclosure relates to the field of batteries, and provides a positive electrode material precursor and a preparation method therefor, a positive electrode material, a battery, and an electric device. The positive electrode material precursor comprises first-class secondary particles and second-class secondary particles, wherein the section of the first-class secondary particle has a radial structure, and the section has a porosity of 2-7%; and the section of the second-class secondary particle has a non-radial structure, and the section has a porosity of 5-12%. The positive electrode material precursor provided in the present disclosure has high rate performance, relatively strong cycling stability, and relatively high discharge capacity.
Resumen de: WO2025162140A1
A battery pack and a vehicle. The battery pack comprises a battery cell module (3) and a case (1). The battery cell module (3) comprises at least one column of battery cells arranged in a first direction. A pull bar (8) is arranged on the end faces of each column of battery cells on which poles (31) are provided; the pull bar (8) extends in the first direction; the case (1) is provided with an accommodating cavity; the battery cell module (3) is arranged in the accommodating cavity, and the end faces where the poles (31) are located face the bottom wall of the accommodating cavity; the pull bar (8) abuts against the bottom wall to form a liquid storage flow channel (111) in the accommodating cavity; and the poles (31) at least partially extend into the liquid storage flow channel (111). The battery cells are inverted in the case (1), the pull bar (8) is arranged on the end faces of the battery cells on which the poles (31) are provided, and the pull bar (8), the end faces of the battery cells on which the poles (31) are provided, and the bottom wall and the inner peripheral wall of the accommodating cavity form the liquid storage flow channel (111), thereby achieving a flow guide effect on a cooling liquid in the accommodating cavity, improving the fluidity of the cooling liquid, and further improving the cooling effect on the poles (31).
Resumen de: WO2025164671A1
The evaluation result prediction device, system, method, and program according to the present disclosure are configured to: extract a plurality of explanatory variables from data items pertaining to a lifespan evaluation test, which are test condition data items and charge/discharge data items, or from charge/discharge data items including an energy density and a power density; input the plurality of explanatory variables to a trained model; and thereby be able to predict a prediction evaluation result measured by a predetermined lifespan evaluation test or an energy density and a power density measured by a predetermined charge/discharge protocol. An operable factor prediction device, system, method, and program according to the present disclosure calculate a plurality of deterioration levels corresponding to lifespan determination events and a plurality of deterioration events of a storage battery from the prediction evaluation result, and thereby can predict, as operable factors, one or a plurality of operable factor candidates having a causal relationship with the lifespan determination events, from an association model that associates in advance the lifespan determination events and the plurality of deterioration events with the plurality of operable factor candidates to identify causal relationships therebetween.
Resumen de: WO2025164670A1
This disclosed non-aqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode collector and a negative electrode mixture layer that is disposed on the negative electrode collector and includes a negative electrode active substance. The negative electrode mixture layer includes graphite particles as the negative electrode active material. When the negative electrode mixture layer is divided into two equal parts in a thickness direction, namely an inner layer on the negative electrode collector side and an outer layer on an outer surface side, the mean value of the internal void ratio of the graphite particles present in the outer layer is less than the mean value of the internal void ratio of the graphite particles present in the inner layer. The non-aqueous electrolyte includes a heterocyclic compound. A heterocyclic ring in the heterocyclic compound includes nitrogen and sulfur. The heterocyclic compound has an electron-withdrawing group R that includes oxygen and/or nitrogen.
Resumen de: WO2025164596A1
A power storage device according to the present invention is provided with a power storage element and a spacer disposed at a position adjacent to the power storage element, wherein: the power storage element is provided with a container housing an electrode body; the container is provided with at least two recesses penetrating in the alignment direction of the power storage element and the spacer; the spacer is provided with a spacer body that overlaps the container when viewed from the alignment direction, and a spacer protrusion extending from the spacer body in the alignment direction and disposed within the recesses when viewed from the alignment direction; and the spacer protrusion performs positioning of the power storage element and the spacer.
Nº publicación: WO2025162390A1 07/08/2025
Solicitante:
ZHUHAI COSMX BATTERY CO LTD [CN]
\u73E0\u6D77\u51A0\u5B87\u7535\u6C60\u80A1\u4EFD\u6709\u9650\u516C\u53F8
Resumen de: WO2025162390A1
The present disclosure relates to the field of batteries, and in particular to a negative electrode sheet and a battery. The negative electrode sheet comprises a negative electrode current collector and a negative electrode coating. A recessed portion is formed in the surface of the negative electrode coating away from the negative electrode current collector. The negative electrode coating comprises a negative electrode active substance, and the negative electrode active substance comprises silicon-based particles. A rectangular area A is intercepted from the section of the negative electrode sheet in the depth direction of the recessed portion. The rectangular area A comprises a recess, and the depth of the recess in the section is h. Four edges of the rectangular area A are A1, A2, A3 and A4, respectively, wherein A1 is parallel to A4, A2 is parallel to A3, A1 coincides with the surface of the negative electrode coating, the midpoint of A1 is the midpoint of an orthographic projection line formed by the recess on the surface of the negative electrode coating, the lengths of A1 and A4 are both 200 µm, and the lengths of A2 and A3 are both (h+10) µm. The number of the silicon-based particles in the rectangular area A is 0-60. The negative electrode sheet of the present disclosure can mitigate the problems of lithium precipitation and expansion.
BOPI
Sede Electrónica
