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593
resultados
Última actualización
26/08/2026 [07:22:00]
Resultados 250 a 275 de 593
Resumen de: WO2026171080A1
The present disclosure relates to the technical field of batteries, and particularly relates to a lithium-ion secondary battery. A positive electrode sheet of the lithium-ion secondary battery comprises first particles having the chemical formula of LixNia1Cob1Mnc1M1 d1O2 and second particles having the chemical formula of LiyNia2Cob2Mnc2M2 d2O2. A negative electrode sheet thereof comprises a negative electrode active material, the negative electrode active material comprises a silicon-carbon material, and the silicon-carbon material comprises a porous carbon matrix and a silicon material located in pore channels of the porous carbon matrix. The specific surface area A of the positive electrode active material, the oil absorption value B of the silicon-carbon material in the negative electrode sheet and the mass content C of lithium difluorophosphate in an electrolyte satisfy: 0.13≤C/A≤5.45, and 0.002≤C/B≤0.23. The lithium-ion secondary battery of the present disclosure has good high-temperature storage and high-temperature cycle performance.
Resumen de: WO2026170945A1
The present application relates to an energy storage apparatus and a power consumption system. The energy storage apparatus comprises: a first battery module and a second battery module, the first battery module comprising a first separator; the second battery module is connected in parallel to the first battery module, and the second battery module comprises a second separator; and a thermal shrinkage rate of the first separator at 150° C in a predefined direction is less than a thermal shrinkage rate of the second separator at 150° C in the predefined direction, wherein the predefined direction is a height direction of the first battery module.
Resumen de: WO2026170612A1
The present application provides a battery cell assembly, a battery module, a battery pack, and an electric device. The battery cell assembly comprises: a battery cell, having two side planes opposite to each other in a first direction, and two main planes opposite to each other in a second direction; a casing, sleeved on the outer side of the battery cell and comprising two recessed plates opposite to each other in the second direction, two side plates opposite to each other in the first direction, and connecting plates respectively connecting the two recessed plates and the two side plates, wherein the inner surface of each recessed plate is in contact with a corresponding main plane, and the height of the side plates in the second direction is greater than the height of the recessed plates in the second direction, so that the maximum height of the casing in the second direction is defined by the side plates; and a fixing structural member, arranged around the outer side of the casing and used for pressing and retaining the battery cell by means of the casing.
Resumen de: WO2026170611A1
Provided in the present application are a cover plate assembly, a cell, and a battery pack. The cover plate assembly comprises an end cap, a post, a bottom plate, and a sealing ring. The post comprises a first section and a second section that are connected to each other, the diameter of the second section being smaller than the diameter of the first section, the first section having a first shoulder face facing toward the second section, and the first section passing through the end cap. The bottom plate is sleeved onto the second section. The sealing ring is sleeved onto the second section and is located between the end cap and the bottom plate, the sealing ring having a first end face facing away from the bottom plate. The inner diameter side of the first end face abuts against the first shoulder face.
Resumen de: WO2026170782A1
The present disclosure relates to the technical field of battery management, and provides a control method and apparatus for a circulating current in a multi-branch parallel battery pack under a recharging operating condition, a device, and a storage medium. The control method for a circulating current in a multi-branch parallel battery pack under a recharging operating condition comprises: detecting a duration of a recharging operating condition of a multi-branch parallel battery pack; when the duration of the recharging operating condition is greater than a predefined duration, determining a recharging current limit according to a recharging current difference between branches, a maximum allowable recharging current, a maximum cell voltage of a branch having a highest recharging current, and a branch count; when the duration of the recharging operating condition is less than or equal to the predetermined duration, according to the recharging current difference between the branches and the maximum cell voltage of the branch having the highest recharging current, completing circulating current control under the recharging operating condition by means of performing thermal management on the battery pack. The present disclosure reduces circulating current impacts resulting from termination of a recharging operating condition.
Resumen de: WO2026170778A1
A lithium-ion secondary battery, comprising a negative electrode sheet. The negative electrode sheet comprises a negative electrode current collector and negative electrode active material layers; the negative electrode active material layers comprise a first negative electrode active material layer and a second negative electrode active material layer; the first negative electrode active material layer is located between the negative electrode current collector and the second negative electrode active material layer, the first negative electrode active material layer comprises first artificial graphite, the first artificial graphite comprises primary particles, Dv501 of the first artificial graphite satisfies: 13μm≤Dv501≤18μm, and R1 of the first artificial graphite satisfies: 0
Resumen de: US20260245865A1
Described herein are examples of methods for making solid-state batteries. The method may include preparing a cathode comprising graphene, sulfur, and phosphorus, wherein the sulfur and phosphorus are mixed together and then mixed with the graphene, and preparing an anode comprising silicon and lithium that is deposited on a copper current collector plate, as well as preparing a separator comprising an ion-conducting material and a solvent, wherein the ion-conducting material and solvent are mixed together and deposited onto the cathode and the cathode, separator, and anode are assembled to form a solid-state battery without a liquid electrolyte layer. The method of building the battery can be instrumental in simplifying the manufacturing process in next-generation factories. The solid-state batteries can be prepared without liquid electrolytes by substituting solid electrolyte particles into the electrode material itself, or by other means, resulting in safer, smaller and easier to manufacture batteries.
Resumen de: AU2025294561A1
A battery pack according to an embodiment of the present invention includes: a cell module assembly including a battery cell stack including a plurality of stacked battery cells, and a bus bar frame covering both side surfaces of the battery cell stack; and a pack frame in which the cell module assembly is seated, wherein a gap is formed between the pack frame and the upper end of the cell module assembly and between the pack frame and the lower end of the cell module assembly, and air is introduced into the gap through holes formed in the bus bar frame to cool the edge portion of the battery cells.
Resumen de: WO2026170822A1
The present application provides a battery device (100) and an electric device. A battery cell assembly (110) of the battery device (100) comprises a plurality of battery cells (20) sequentially arranged in a second direction (X); in a first direction (Z), a first thermal management component (12) and a second thermal management component (13) are respectively arranged on two opposite sides of the battery cell assembly (110) and are respectively close to or connected to the plurality of battery cells (20) in the battery cell assembly (110). In the battery device (100) provided in embodiments of the present application, the first thermal management component (12) and the second thermal management component (13) can be used together for performing heat-exchange cooling processing on the battery cells (20), and the battery device (100) has better reliability in a high-rate operating state.
Resumen de: WO2026170768A1
The present application relates to a valve assembly and a battery production device. In a liquid injection or exhaust process, a valve core can apply a pushing force to a valve body so as to push the valve body, such that a flow channel is in communication with the interior of a battery cell, and at this time, a medium can be injected into the interior of the battery cell by means of a flow guide channel and the flow channel, or can be discharged to the exterior of the battery cell. When the flow channel is in communication with the interior of the battery cell, a first sealing surface is in sealing contact with a second sealing surface, such that the valve core is in sealing fit with the valve body. Thus, when the valve is opened, an electrolyte is prevented from seeping out between the valve body and the valve core due to the internal pressure of the battery cell, thereby effectively reducing the probability of back-seepage of the electrolyte during the liquid injection process, ensuring normal liquid injection operation, and reducing contamination to the battery cell.
Resumen de: WO2026170940A1
Embodiments of the present application provide a battery cell and a manufacturing method therefor, and an electric device. The battery cell comprises a casing, an electrode assembly, and a filler. The electrode assembly comprises a first electrode assembly and a second electrode assembly; the first electrode assembly and the second electrode assembly are stacked in a first direction; in a second direction, the length of the second electrode assembly is greater than that of the first electrode assembly; the second electrode assembly has a first surface facing the first electrode assembly; when viewed in the first direction, the second electrode assembly has an overlapping region that overlaps with the first electrode assembly, and a non‑overlapping region that does not overlap with the first electrode assembly; the side wall of the first electrode assembly close to the non-overlapping region in the second direction and a first surface of the non-overlapping region form a first step; the casing forms a second step corresponding to the first step, and an accommodating space is formed between the first step and the second step; the second direction is perpendicular to the first direction; and the filler is provided in the accommodating space. The technical solution of the present application can improve the safety and reliability of the battery cell.
Resumen de: WO2026170941A1
Provided in the embodiments of the present application are a battery cell and a manufacturing method therefor, and an electrical device. The battery cell comprises a housing and electrode assemblies. A first electrode assembly and a second electrode assembly are stacked in a first direction; in a second direction, the length of the second electrode assembly is greater than the length of the first electrode assembly; the side wall of the first electrode assembly close to a non-overlapping region in the second direction and a surface of the non-overlapping region form a first step; the housing forms a second step corresponding to the first step, an accommodating space being formed between the first step and the second step; the second electrode assembly has a first region, and the first region comprises a region overlapping the accommodating space in the first direction; in the first region, the difference in the bonding force between any two second negative electrode sheets and second separators connected thereto is less than or equal to 2 N/m, and the bonding force between any second negative electrode sheet and a second separator connected thereto is greater than or equal to 5 N/m. The technical solution of the present application can improve the safety and reliability of the battery cell.
Resumen de: WO2026171221A1
The present application relates to the technical field of batteries. Disclosed are a battery, a battery pack, and a preparation method for a battery. The battery comprises: an electrode assembly, a first encapsulation film, and a second encapsulation film, wherein an accommodating groove for mounting of the electrode assembly is provided on the first encapsulation film, and the electrode assembly is arranged in the accommodating groove; the second encapsulation film is arranged opposite to the first encapsulation film, and a hot-melt region surrounding the periphery of the accommodating groove is reserved at each of the second encapsulation film and the first encapsulation film; and the hot-melt regions of the first encapsulation film and the second encapsulation film are respectively provided with a plurality of rows of embossments, the plurality of rows of embossments being arranged around the periphery of the electrode assembly, a spacing L 1 between adjacent embossments in the direction of width of the battery satisfying 0.1 mm≤L 1≤3 mm, and a spacing L 2 between adjacent embossments in the direction of length of the battery satisfying 0.1 mm≤L 2≤3 mm. In the present application, by providing the plurality of rows of embossments in the hot-melt regions and limiting the spacings between adjacent embossments, the melting uniformity of a hot-melt layer can be improved, a sealing effect can be improved, and the prolonging of the service life of a hot-melt pressing hea
Resumen de: WO2026171130A1
The present application belongs to the technical field of batteries, and provides a positive electrode sheet, and a manufacturing method therefor and the use thereof. The positive electrode sheet comprises a current collector, and a first positive electrode active layer and a second positive electrode active layer which are stacked on the surface of the current collector, wherein a positive electrode active material in the first positive electrode active layer comprises a high-nickel ternary material, and a positive electrode active material in the second positive electrode active layer comprises a medium-nickel ternary material. In the present application, a double-layer heterogeneous positive electrode sheet is obtained by means of a functional layered design combined with the capacity advantage of a high-nickel material and the kinetic advantage of a medium-nickel material. A lithium-ion battery assembled from the positive electrode sheet has effectively balanced advantages such as a high energy density and a high cycling stability.
Resumen de: US20260246190A1
A detachable and replaceable connector base structure for a lithium-ion power tool battery pack includes a housing with a detachable connector base at its bottom. A positioning structure between the base and the housing secures the base in place while permitting removal, and a buckle mechanism on the battery pack locks the battery pack to the base. Conductive inserts in the base provide electrical connection to the tool's circuitry. This design allows the power tool to interchangeably use battery packs of different brands or models without requiring any modification to the tool housing.
Resumen de: WO2026171114A1
The present disclosure relates to a battery enclosure body, a battery pack, and a vehicle. The battery enclosure body comprises: a front beam and a rear beam, wherein in the extension direction of the front beam and the rear beam, the heights of the left ends and/or the right ends of the front beam and the rear beam are smaller than the heights of the middle portions of the front beam and the rear beam; and a left beam and a right beam, wherein the left beam is connected to left ends of the front beam and the rear beam, the left ends of the front beam and the rear beam have the same height as the left beam, the right beam is connected to right ends of the front beam and the rear beam, and the right ends of the front beam and the rear beam have the same height as the right beam. In the battery enclosure body of the present embodiment, the height of at least one end of each of the front beam and the rear beam is reduced, and the heights of the left beam and/or the right beam are also reduced, so that the weight of the battery enclosure body is reduced. The reduced heights at the end portions of the front beam and the rear beam, and the reduced heights of the left beam and/or the right beam can be compensated by an enclosure upper cover. For the same volume, the weight of the enclosure upper cover is smaller than that of the battery enclosure body, thereby reducing the overall weight of the battery pack and satisfying the lightweight requirement.
Resumen de: WO2026171119A1
Disclosed are a waste battery material powder, and a preparation method therefor and a use thereof, relating to the technical field of battery recycling. The waste battery material powder comprises a metal compound powder and an elemental carbon material, the content percentage of carbon in the waste battery material powder is 10-40 wt%, and ID/IG≤0.5, wherein ID and IG are respectively the intensity of a D-band characteristic peak and the intensity of a G-band characteristic peak in a Raman spectrum of the waste battery material powder. The waste battery material powder has a low ID/IG value, which means that the waste material powder has low amorphous carbon content and graphite has low degree of oxidation. The waste battery material powder meeting the requirements that the content percentage of carbon is 10-40 wt% and ID/IG≤0.5 exhibits a good metal recovery rate in a hydrometallurgy process, and obtained graphite residue exhibits good regeneration capacity.
Resumen de: WO2026171224A1
The present application relates to the technical field of batteries. Disclosed are a battery cell and a battery pack. The battery cell comprises an electrode assembly. The electrode assembly is provided with internal tabs. The internal tabs comprise a positive tab and a negative tab which are arranged at two ends of the electrode assembly, respectively, wherein the width of the positive tab is defined as b in units of mm, the number of layers of electrode sheets of the positive tab is m, and the thickness of an electrode sheet foil of the positive tab is t1 in units of μm; and the width of the negative tab is defined as c in units of mm, the number of layers of electrode sheets of the negative tab is n, and the thickness of an electrode sheet foil of the negative tab is t2 in units of μm, satisfying 1.5≤mbt1/nct2≤2.2. The battery cell provided by the present application can ensure that the sizes of the positive tab and the negative tab are rationally matched, and the current-carrying capacity of the positive tab is equivalent with that of the negative tab during a charging and discharging process of the battery cell. Moreover, when heat from a major surface of the electrode assembly flows towards the tab in the direction of length of the battery cell, the heat at the root of the tab will not cause excessive temperature rise at the tab due to excessive concentration, ensuring that the temperature of the entire battery cell is evenly transferred at the major surface and t
Resumen de: WO2026171220A1
The present application relates to the technical field of batteries, and discloses a battery cell and a battery pack. The battery cell comprises: an electrode assembly, tabs being provided at the end portions of the electrode assembly; and a packaging film, wrapping the outer side of the electrode assembly and forming a packaging edge around the electrode assembly, wherein a packaging area is provided at the packaging edge, the width of the packaging area is W1, the range of W1 is 0.8 mm≤W1≤50 mm, and each tab has one end located in the packaging film and the other end extending out of the packaging edge. In the present application, the width W1 of the packaging area is set according to the described parameters, so that on the one hand, the width W1 of the packaging area can be prevented from being excessively small, causing poor sealing performance of the packaging film; and on the other hand, the width W1 of the packaging area can be prevented from being excessively large, causing material waste and excessive occupation of space, thereby affecting the energy density of the battery cell.
Resumen de: WO2026171108A1
A current collector cylinder, a lithium thionyl chloride battery, and an assembly process for a lithium thionyl chloride battery. The current collector cylinder comprises a cylinder body (51) and a limiting structure (52), wherein the cylinder body (51) is inserted into a positive electrode member (4), and cooperates with a side wall (12) of a housing (1) to provide lateral support and restraint for the positive electrode member (4); the limiting structure (52) comprises an abutting portion (5201) and an elastic portion (5202) connected to the abutting portion (5201); and in the radial direction of the cylinder body (51), the limiting structure (52) is configured to be spaced apart from the side wall (12) of the housing (1) of a lithium thionyl chloride battery.
Resumen de: WO2026170998A1
The present utility model provides a battery pack and an energy storage cabinet, the battery pack comprising: a housing, a gas-based fire extinguishing module, a liquid-based fire extinguishing module, and a pressure relief mechanism, wherein an accommodating space for accommodating a battery module is formed within the housing; the gas-based fire extinguishing module is arranged on a side wall of the housing or in the accommodating space; the liquid-based fire extinguishing module comprises an inlet and an outlet which are arranged on a first side wall of the housing; the pressure relief mechanism is arranged on a second side wall of the housing, and the pressure relief mechanism is configured for releasing high-pressure gas from the accommodating space. The present utility model allows for multi-agent fire protection to be performed on a battery pack, thereby effectively extinguishing flames, preventing battery cell re-ignition, and suppressing battery fires. In addition, direct impact from incoming water on a pressure relief mechanism is prevented during a water-based fire suppression stage, and a liquid-based fire extinguishing agent is retained in an accommodating space, thereby enabling full utilization of the fire extinguishing efficiency thereof, and further improving reliability and safety of water-based fire suppression.
Resumen de: WO2026170739A1
The present disclosure relates to a power battery and construction machinery. The power battery comprises: at least two battery module assemblies stacked in a first direction, wherein each battery module assembly comprises at least two battery modules, each battery module comprising at least two battery cells; at least two tray assemblies, wherein a tray assembly is disposed between two adjacent battery module assemblies, and a tray assembly is disposed on a first side of the at least two battery module assemblies in the first direction; and a cover plate assembly disposed on a second side of the at least two battery module assemblies in the first direction. The power battery uses a modular design, the number of the battery module assemblies can be flexibly set on the basis of the spatial layout and power requirements of different main unit products, and the power battery can be adapted to power battery boxes of different specifications, thereby achieving a high adaptability.
Resumen de: WO2026170641A1
The present application relates to the technical field of lead-acid batteries, and provides a plate group assembly and a lead-acid battery. The plate group assembly comprises grids, a first busbar, a second busbar and a casing structure; tabs are fixed to the tops and bottoms of the grids; the tabs at the tops of the multiple grids are electrically connected by means of the first busbar, and the tabs at the bottoms of the multiple grids are electrically connected by means of the second busbar; the multiple grids are all mounted in the casing structure; a mounting hole is provided in a side wall of the casing structure; the mounting hole extends from the top of the casing structure to the bottom thereof; a conductive member is provided in the mounting hole; by means of the conductive member, the first busbar and the second busbar are electrically connected. In the plate group assembly, the tabs are provided on both the tops and bottoms of the grids, and the conductive member is used to electrically connect the first busbar to the second busbar, thus not only reducing the potential difference between the tops and bottoms of the grids and improving the utilization rate of active materials in the middles and bottoms of the grids, but also allowing the current density distribution on the grids to be more uniform and thus improving the capacity of a battery and prolonging the cycle life thereof.
Resumen de: WO2026170783A1
The present disclosure relates to the technical field of battery management. Provided are a method, apparatus and device for controlling a circulating current of a multi-branch parallel battery pack under a discharge operating condition, and a storage medium. The method for controlling a circulating current of a multi-branch parallel battery pack under a discharge operating condition comprises: detecting the duration of a discharge operating condition of a multi-branch parallel battery pack; when the duration of the discharge operating condition is longer than a preset duration, determining a target discharge current limit on the basis of an inter-branch discharge current difference, a maximum allowable discharge current, the minimum cell voltage of the branch having the maximum discharge current, the current discharge power and the number of branches; and when the duration of the discharge operating condition is shorter than or equal to the preset duration, determining the target discharge current limit on the basis of the inter-branch discharge current difference, the maximum allowable discharge current, and the minimum cell voltage of the branch having the maximum discharge current. The present disclosure can reduce the influence of a circulating current caused by the termination of a discharge operating condition.
Nº publicación: WO2026171222A1 20/08/2026
Solicitante:
SVOLT ENERGY TECH CO LTD [CN]
\u8702\u5DE2\u80FD\u6E90\u79D1\u6280\u80A1\u4EFD\u6709\u9650\u516C\u53F8
Resumen de: WO2026171222A1
The present application relates to the technical field of batteries, and discloses a soft package battery and a battery pack. The soft package battery comprises: an electrode set, a first packaging film, and a second packaging film. The first packaging film is provided with an accommodating recess used for mounting the electrode set, and the electrode set is arranged in the accommodating recess; the second packaging film is arranged opposite to the first packaging film, a packaging region surrounding the periphery of the accommodating recess is reserved on each of the second packaging film and the first packaging film, and the packaging regions are fixed by means of hot-melt plastic packaging, so as to package the electrode set in the accommodating recess; and the depth of the accommodating recess is H, the thickness of the first packaging film is T1, the thickness of the second packaging film is T2, the thickness of the soft package battery is T3, and it is satisfied that (T3-T1-T2)/1.1≤H≤(T3-T1-T2)/0.9. In the present application, the relationship among the depth of the accommodating recess, the thickness of the first packaging film, the thickness of the second packaging film, and the thickness of the soft package battery is defined, so that the depth of the accommodating recess is maintained within an appropriate range, thereby improving the mounting effect of the electrode set.
BOPI
Sede Electrónica
