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BATTERY PACK HAVING CELL EDGE COOLING STRUCTURE AND DEVICE INCLUDING SAME

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.

BATTERY DEVICE AND ELECTRIC DEVICE

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.

VALVE ASSEMBLY AND BATTERY PRODUCTION DEVICE

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.

SAMMELSCHIENE

Resumen de: DE102026105517A1

Eine Sammelschiene weist eine Plattenform auf und ist aus einem elektrisch leitfähigen Material hergestellt. Die Sammelschiene ist konfiguriert, um mit Anschlüssen verbunden zu werden, die auf einer Seite von zwei in einer vorbestimmten Richtung angeordneten Batteriezellen vorgesehen sind. Die Sammelschiene umfasst: einen ersten Verbindungsabschnitt, der konfiguriert ist, um mit dem Anschluss einer der beiden Batteriezellen verbunden zu werden; einen zweiten Verbindungsabschnitt, der konfiguriert ist, um mit dem Anschluss der anderen Batteriezelle verbunden zu werden; und ein erstes Durchgangsloch und ein zweites Durchgangsloch, die in einem Bereich zwischen dem ersten und dem zweiten Verbindungsabschnitt vorgesehen sind und in einer Oben-Unten-Richtung angeordnet sind. Ein vertiefter Abschnitt, der in Richtung zu der gegenüberliegenden Seite von dem zweiten Durchgangsloch ausgespart ist, ist an einer Kante des ersten Durchgangslochs vorgesehen, die sich auf der Seite des zweiten Durchgangslochs befindet.

NONWOVEN MAT

Resumen de: WO2026171722A1

The present invention refers to a nonwoven mat for thermal insulation and protection from fire, a method for the preparation of said nonwoven mat, a partition member, a battery housing and a battery pack; and to the use of the nonwoven mat, the partition member and the battery housing for thermal insulation and protection from fire.

METHOD OF OPERATING A BATTERY TESTING ASSEMBLY, COMPUTER PROGRAM, COMPUTER-READABLE MEDIUM, CONTROL ARRANGEMENT, AND BATTERY TESTING ASSEMBLY

Resumen de: WO2026173518A1

A method (100) of operating a battery testing assembly (1) for initiating a thermal runaway in a battery arrangement (2) comprising at least one battery cell (3) is disclosed. The method (100) is performed by a control arrangement (8). The battery testing assembly (1) comprises a current generating device (6) configured to generate a varying current. The current generating device (6) is electrically connected to the at least one battery cell (3). The method (100) comprises controlling (104) the current generating device (6) to generate a varying current having a first frequency (f) to heat the at least one battery cell (3) to a temperature which initiates thermal runaway. The present disclosure further relates to computer program, a computer-readable medium, a control arrangement (8), and battery testing assembly (1).

METHOD OF ELECTRICALLY CONNECTING ONE OR MORE BATTERY PACKS TO AN ELECTRICAL SYSTEM OF A VEHICLE, COMPUTER PROGRAM, COMPUTER-READABLE MEDIUM, CONTROL ARRANGEMENT, AND VEHICLE

Resumen de: WO2026173517A1

A method (100) of electrically connecting one or more battery packs (P1 – P4) to an electrical system (10) of a vehicle (20) is disclosed. The method (100) comprises obtaining (110) voltages (V1 – V4) of the three or more battery packs (P1 - P4), estimating (120) an upcoming power demand of the electrical system (10), estimating (130) a possible power delivery of the battery pack (P1) having the highest voltage (V1), and if the voltage difference (D1) between the battery pack (P1) having the highest voltage (V1) and the battery pack (P2) having the second-highest voltage (V2) exceeds a first threshold (T1), and the voltage difference (D2) between the battery pack (P2) having the second-highest voltage (V2) and the battery pack (P3) having the third-highest voltage (V3) is below a second threshold (T2), connecting (140) the battery pack (P1) having the highest voltage (V1) if the estimated possible power delivery thereof exceeds the estimated upcoming power demand, otherwise connecting (150) the battery pack (P2) having the second-highest voltage (V2). The present disclosure further relates to a computer program, a computer-readable medium (200), a control arrangement (21), and a vehicle (20).

BATTERY TERMINAL UNIT

Resumen de: US20260246114A1

0000 A battery terminal unit includes a battery terminal configured to be connected to a battery post of a battery, and a base member configured to be mounted to the battery terminal. The base member includes a base rotation suppressing part capable of coming into contact with a base abutting surface of a casing of the battery in a direction in which the battery terminal rotates relative to the battery, and a coupling part for attaching an attachment member configured to come into contact with the casing.

BATTERY PACK INTERCONNECT ASSEMBLY FOR A BATTERY PACK

Resumen de: US20260246098A1

A busbar interconnect for electrically connecting cell terminals of battery cells in a battery pack includes a cell bussing web having a metal sheet with slots forming adjacent busbars in the metal sheet in one or more rows and one or more columns with sacrificial connecting tabs spanning across the slots between the corresponding adjacent busbars to hold relative positions of the busbars. The sacrificial connecting tabs are configured to be removed to singulate the busbars and electrically separate the adjacent busbars from each other. The busbar interconnect includes a conductive adhesive film applied to the metal sheet. The busbar interconnect includes a sensor assembly coupled to the metal sheet having a flexible circuit spanning the metal sheet with sensing circuits electrically coupled to the corresponding busbars with the conductive adhesive film.

BATTERY

Resumen de: WO2026170770A1

The present application relates to the technical field of batteries, and discloses a battery, comprising: a laminated battery cell, comprising a plurality of electrode sheets stacked layer by layer in a first direction, wherein each electrode sheet comprises an electrode sheet body and a tab, the tab is led out from the electrode sheet body in a second direction, the size of the electrode sheet body in a third direction is L1 mm, and the size of the tab in the third direction is L2 mm, meeting: 20≤L1-L2≤120, and the first direction, the second direction and the third direction intersect in pairs. By defining the size range of a cut-off portion, the present application can ensure the stability of suction or clamping of a cutting operation while meeting overcurrent requirements of tabs, thereby improving the positioning accuracy of the cutting operation, improving the yield of the tabs, and thus improving the overall yield of laminated batteries.

COMPOSITE, CONDUCTIVE MATERIAL, ELECTRODE, AND SECONDARY BATTERY COMPRISING SAME

Resumen de: US20260245899A1

0000 Provided is a composite capable of reducing the resistance of a cell. According to an aspect, provided is a composite comprising graphene and carbon nanotubes on the graphene, wherein the ratio (I/I) of the intensity (I) of the D band to that (I) of the G band of the composite as measured by Raman spectroscopy is 1.00 or less. According to the composite, structural stability is improved, an impurity content within the composite is low, and powder conductivity is high.

Battery Module and Battery Pack Including Same

Resumen de: US20260246100A1

A battery module including a battery cell stack in which multiple battery cells are stacked, a module case configured to accommodate the battery cell stack, a terminal busbar disposed on one side of the battery cell stack, an insulating cover disposed on one side of the module case, one end portion of the terminal busbar being positioned on the insulating cover, and a fixing member having a fixing hole configured to fix the one end portion of the terminal busbar, where the fixing member being disposed below the one end portion of the terminal busbar in the insulating cover is provided.

WASTE BATTERY MATERIAL POWDER, AND PREPARATION METHOD THEREFOR AND USE THEREOF

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.

BATTERY CELL AND BATTERY PACK

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

SECONDARY BATTERY AND ELECTRONIC APPARATUS

Resumen de: US20260246092A1

A secondary battery includes an electrode assembly. The electrode assembly is a stacking structure, and the electrode assembly includes a first electrode sheet, a separator, and a second electrode sheet sequentially stacked in a first direction. The first electrode sheet includes a first outer electrode sheet located at one end of the electrode assembly in the first direction and at least one first inner electrode sheet located inside the electrode assembly relative to the first outer electrode sheet. The separator includes a first separator bonded to the first outer electrode sheet and a second separator bonded to the first inner electrode sheet. A bonding strength between the first separator and the first outer electrode sheet is defined as F1, a bonding strength between the second separator and the first inner electrode sheet is defined as F2, and F1>F2.

WIRELESS COMMUNICATION SYSTEM

Resumen de: US20260246151A1

0000 A wireless communication system includes a housing formed of a conductive material, battery packs installed in the housing, each battery pack having outer surfaces formed of a conductive material, and wireless communication devices, each of which includes an antenna. The antenna of each wireless communication device is disposed in a corresponding propagation path defined between the housing and one or more of the battery packs. The wireless communication devices perform radio-wave wireless communication with one another using a predetermined communication frequency. The antenna of each wireless communication device transmits and receives radio waves having a predetermined-directional polarization plane more strongly than other radio waves having polarization planes other than the predetermined-directional polarization plane. In the predetermined-directional polarization plane, a cutoff frequency defined based on a longitudinal length of a cross section of the corresponding propagation path is lower than the predetermined communication frequency.

BATTERY CELL AND BATTERY PACK

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.

PLATE GROUP ASSEMBLY AND LEAD-ACID BATTERY

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.

METHOD, APPARATUS AND DEVICE FOR CONTROLLING CIRCULATING CURRENT OF MULTI-BRANCH PARALLEL BATTERY PACK UNDER DISCHARGE OPERATING CONDITION, AND STORAGE MEDIUM

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.

POSITIVE ELECTRODE FOR SECONDARY BATTERY AND SECONDARY BATTERY COMPRISING THE SAME

Resumen de: US20260245958A1

0000 The present invention relates to a positive electrode for a secondary battery and a secondary battery comprising the same, and more specifically, to a positive electrode for a secondary battery comprising a first positive electrode layer and a second positive electrode layer.

SOFT PACKAGE BATTERY AND BATTERY PACK

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.

SILICON-CARBON PARTICLE, NEGATIVE ELECTRODE PLATE, AND BATTERY

Resumen de: US20260242294A1

0000 The present disclosure relates to the technical field of batteries, and specifically to silicon-carbon particles, a negative electrode plate, and a battery. The present disclosure provides silicon-carbon particles, wherein the surface of the silicon-carbon particles has recessed portions; the number N of the recessed portions on the surface of the silicon-carbon particles is ≥1; the diameter of the recessed portions is 0.05 μm-5 μm; the depth of the recessed portions is 10 nm-μm. By providing recessed portions on the surface of the silicon-carbon particles, the present disclosure is beneficial for improving the cycling stability and expansion performance of silicon-based negative electrode materials.

SODIUM-ION BATTERY CELL, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: US20260245915A1

0000 A sodium-ion battery cell, a secondary battery, and an electric device are provided. The sodium-ion battery cell includes a cylindrical casing defining an accommodating cavity and an electrode assembly disposed within the accommodating cavity. The electrode assembly includes a negative electrode sheet comprising a negative electrode current collector and a negative electrode active layer disposed on at least one surface of the negative electrode current collector. The negative electrode current collector has a density less than or equal to 5.0 g/cm<3>. A group margin of the sodium-ion battery cell satisfies 0.95≤group margin<1, where the group margin is a ratio of a diameter of the electrode assembly to a diameter of the accommodating cavity.

ELECTRODE PLATE AND BATTERY

Resumen de: WO2026171225A1

The present application relates to the technical field of batteries. Disclosed are an electrode plate and a battery. The electrode plate comprises: an electrode plate body, wherein in the direction of thickness of the electrode plate body, a corner of the electrode plate body is cut to form a recess, and a corner line is formed at the corner of the electrode plate body, the corner line comprising at least one rounded corner structure, and the radius of the rounded corner structure ranging from 0.3 mm to 10 mm. In the present application, the corner of the electrode plate body is cut, so as to remove a right angle at the corner of the electrode plate body, and form the corner line having the rounded corner structure at the corner of the electrode plate body, such that the corner line is relatively gentle and smooth, thereby avoiding puncturing of a separator, avoiding short circuits, and ensuring the safety performance of the battery during stacking and hot pressing.

BATTERY PACK, NEW ENERGY EQUIPMENT, FIRE EXTINGUISHING METHOD AND SYSTEM FOR THE BATTERY PACK, AND READABLE STORAGE MEDIUM

Nº publicación: AU2025355974A1 20/08/2026

Solicitante:

JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INST LTD
JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD.

Resumen de: AU2025355974A1

A battery pack, a new energy device, a fire-extinguishing method and system for a battery pack, and a readable storage medium, which relate to the technical field of new energy batteries and are used to improve the reliability of battery packs during use. The battery pack comprises a case assembly (1), a cell assembly (2), a first-stage fire-extinguishing assembly (3) and a second-stage fire-extinguishing assembly (4). The case assembly (1) comprises an accommodating cavity (11) and a fire-extinguishing agent injection port (12) in communication with the accommodating cavity (11). The cell assembly (2) is mounted in the accommodating cavity (11). The first-stage fire-extinguishing assembly (3) is mounted in the accommodating cavity (11), and the first-stage fire-extinguishing assembly (3) is configured to extinguish a fire on the cell assembly (2). The second-stage fire-extinguishing assembly (4) is mounted outside the case assembly (1) and is in communication with the fire-extinguishing agent injection port (12), and the second-stage fire-extinguishing assembly (4) is configured to spray a fire-extinguishing agent onto the cell assembly (2) in the accommodating cavity (11). In the technical solution, a two-stage fire-extinguishing assembly is used, thus improving the fire-extinguishing effect. In addition, the battery pack can adapt to battery systems of different sizes, with a high level of universality, thereby greatly reducing research and development and design costs.