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1197
resultados
Última actualización
17/08/2025 [07:30:00]
Resultados 950 a 975 de 1197
Resumen de: WO2025162359A1
The present application relates to the technical field of secondary batteries, and in particular to an electrode assembly, a battery cell and a secondary battery. The electrode assembly comprises a first electrode sheet, a second electrode sheet and a separator. The first electrode sheet comprises a first electrode material and a second electrode material, the expansion rate of the first electrode material being greater than that of the second electrode material. The first electrode sheet has differently stressed positions, the greater the stress on a position, the greater the mass proportion of the first electrode material at the position.
Resumen de: WO2025162385A1
The present invention relates to the field of batteries, and in particular to a battery. The battery of the present invention comprises a positive electrode sheet and a negative electrode sheet, wherein the positive electrode sheet comprises a first carbon nanotube, a recessed portion is formed on the surface of the negative electrode sheet, and a ratio of the depth of the recessed portion to the tube diameter of the first carbon nanotube is (300-5,000):1. The battery of the present invention can effectively mitigate the lithium precipitation problem of a negative electrode sheet, and has both high energy density and fast charging capability.
Resumen de: WO2025162335A1
A battery protection plate, comprising a first continuous fiber reinforced resin layer, a fiber reinforced resin layer, and a second continuous fiber reinforced resin layer which are sequentially stacked. A metal plate and a foam layer are present between the first continuous fiber reinforced resin layer and the fiber reinforced resin layer; the fiber reinforced resin layer is a short fiber reinforced resin layer or a fiber mat reinforced resin layer; and the thickness ratio of the metal plate, the foam layer, and the fiber reinforced resin layer is (0.25-5):(0.6-8):(1-12). The fiber reinforced resin layer and the foam layer provided in the battery protection plate can achieve an excellent buffering and energy absorption effect, further improving the impact resistance of the battery protection plate. When the battery protection plate is in use, the applied stress can be evenly distributed, and no excessively high or low local impact force is caused, thereby preventing breakage or failure of the battery protection plate. In addition, the fiber reinforced resin layer and the foam layer can also achieve a weight reduction effect, thereby achieving a lightweight and high-strength technical effect.
Resumen de: WO2025162272A1
A battery cell. At least one end of a battery cell casing (100) forms an opening, and the inner wall surface of the battery cell casing (100) comprises an interlocking section (111) located on the side close to the opening. The interlocking section (111) is welded to the body (210) of a cover plate (200), the depth of the interlocking section (111) is d, and the thickness L2 of the body (210) satisfies: L2-0.5≤d≤L2+0.5, wherein L2≥0.5 mm. By using the described assembly size relationship, the matching degree between the body (210) of the cover plate (200) and the battery cell casing (100) is high, and the welding strength and the welding yield are high.
Resumen de: WO2025165038A1
Disclosed are: a solid electrolyte for an all-solid-state battery, which can be protected from moisture by chemically reacting a sulfide-containing solid electrolyte with an amphiphilic compound, for example, a material such as a surfactant; and an all-solid-state battery comprising such a solid electrolyte. The solid electrolyte for an all-solid-state battery is surface-modified with an amphiphilic compound having both hydrophilic and hydrophobic groups.
Resumen de: WO2025165027A1
An apparatus for applying pressure to a battery cell, according to one embodiment of the present invention, comprises: a pressure applying unit applying pressure to a battery cell; and a pressure reducing member input unit providing a pressure reducing member to the pressure applying unit. The pressure applying unit comprises: a mounting part for mounting the battery cell or the pressure reducing member; and a pressure applying jig moving toward the mounting part and applying pressure to the battery cell or the pressure reducing member. The pressure reducing member input unit comprises at least one grip part automatically gripping and moving the pressure reducing member.
Resumen de: WO2025165054A1
A battery diagnostic apparatus according to an embodiment of the present invention includes: a profile obtaining unit configured to obtain a differential profile indicating a correspondence relationship between a differential capacity and a voltage of a battery; and a control unit configured to determine a target peak in the differential profile, calculate a first capacity and a second capacity of the differential profile on the basis of the target peak, calculate a capacity ratio between the first capacity and the second capacity, and diagnose the state of the battery by comparing the calculated capacity ratio with a pre-stored reference capacity ratio.
Resumen de: WO2025165051A1
A battery diagnosing apparatus according to an embodiment of the present invention includes: a profile acquisition unit configured to acquire a charging profile indicating a correspondence relationship between a voltage and a current of a battery measured in a charging process; and a control unit configured to calculate a first CC capacity and a first CV capacity from the charging profile, calculate a capacity change rate for the first CC capacity and the first CV capacity on the basis of a pre-stored second CC capacity and second CV capacity, diagnosis a state of the battery on the basis of the calculated capacity change rate and a preconfigured correction coefficient, and configure a use condition for the battery according to a diagnosis result.
Resumen de: WO2025165063A1
The present invention relates to a negative electrode, a secondary battery comprising same, and a secondary battery system for same. The negative electrode comprises, in a coating layer, aluminum-containing particles having specific components and a conductive material, and thus can implement a predetermined volume resistivity. Such negative electrodes allow a certain amount of current to leak, while implementing appropriate insulation on the surface of the negative electrode in the event of an internal short circuit, and thus can prevent the internal short circuit from causing a meltdown and/or rapid heat generation in a secondary battery.
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: WO2025165065A1
The technical idea of the present invention provides a battery apparatus comprising: a base structure: a plurality of cell assemblies mounted on the base structure and each of the plurality of cell assemblies including a plurality of battery cells; and a top cover coupled to the base structure and including a pair of outer walls spaced apart from each other in a first direction and an upper plate covering the plurality of cell assemblies and having an upper cooling channel.
Resumen de: WO2025165076A1
The present invention relates to a lithium secondary battery comprising: an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode; an electrolyte; and a battery case including an inner space for accommodating the electrode assembly and the electrolyte, wherein the cathode includes a cathode active material, the cathode active material includes a lithium nickel-based oxide containing 50-70 mol% nickel from total metal content thereof excluding lithium, and the electrolyte filling factor (EFF) index (unit: g/Ah) defined by relation 1 is 1.82-2.06. Relation 1 In relation 1, RE unit: g represents the weight of the remaining electrolyte included in the lithium secondary battery after activation, SU represents the ratio (SA/SE) of the volume (SA) of the electrode assembly and the volume (SE) of the lithium secondary battery, and NC unit: Ah represents the capacity when the lithium secondary battery is discharged from 4.4 V to 2.5 V at 0.33 C at 25°C.
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: 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: 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.
Nº publicación: WO2025164928A1 07/08/2025
Solicitante:
ABR CO LTD [KR]
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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.
BOPI
Sede Electrónica
