Alerta

COMPOSITE CURRENT COLLECTOR, ELECTRODE PLATE, BATTERY CELL, AND METHOD FOR PREPARING AND TESTING BATTERY CELL

Resumen de: WO2026171024A1

A composite current collector, electrode plate, battery cell, and method for preparing and testing a battery cell, relating to the technical field of composite current collectors. The composite current collector comprises a heating layer (100) and two metal layers (200), wherein the heating layer (100) is disposed between the two metal layers (200) and is connected separately to each of the metal layers (200), and a heating element is disposed within the heating layer (100). At least one metal layer (200) has a coating region on the side facing away from the heating layer, and a heating region of the heating element corresponds to the coating region. According to the composite current collector provided by the embodiments of the present application, heat is generated by the heating element to uniformly heat the heating layer, and is uniformly transferred to the coating region, such that the temperature distribution is uniform and the temperature difference at each location is small, thereby improving the performance and service life of the battery.

POSITIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, BATTERY, BATTERY PACK AND ELECTRICAL DEVICE

Resumen de: WO2026171072A1

Provided in the present application are a positive electrode sheet and a preparation method therefor, a battery, a battery pack and an electrical device. The positive electrode sheet comprises a current collector, and a first active layer and a second active layer which are sequentially stacked on at least one functional surface of the current collector, wherein the first active layer comprises a first active material, a first conductive agent and a first binder, the second active layer comprises a second active material, a second conductive agent and a second binder, the first active material comprises lithium manganese oxide and/or lithium iron manganese phosphate, the second active material comprises a ternary material, and the mass ratio of the first active material to the second active material is 5-9:1-5.

BATTERY MANAGEMENT SYSTEM AND CONTROL METHOD THEREOF

Resumen de: US20260245993A1

A battery management system may include: a first battery cell; a second battery cell; a cable connecting the first battery cell and the second battery cell to each other; and a battery management circuit which monitors the voltage of the first battery cell and the second battery cell and determines whether to switch states of the first battery cell and the second battery cell to a permanent fail state on the basis of the voltage of the first battery cell and the second battery cell and whether the first battery cell and the second battery cell are connected by the cable.

BATTERY CELL, BATTERY APPARATUS, AND ELECTRIC APPARATUS

Resumen de: WO2026170545A1

The present application discloses a battery cell, a battery apparatus, and an electric apparatus. The battery cell comprises an electrode assembly, the electrode assembly comprising a plurality of positive electrode sheets and a plurality of negative electrode sheets stacked in a third direction, and a positive electrode tab and a negative electrode tab respectively located at a first side end and a second side end of the electrode assembly in a second direction; each negative electrode sheet comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector, and the negative electrode film layer is configured to have a reduced thickness at least at an end adjacent to the negative electrode tab so as to form a negative electrode thinned portion; each positive electrode sheet comprises a positive electrode current collector and a positive electrode film layer located on at least one side of the positive electrode current collector, and the positive electrode film layer is configured to have a reduced thickness at least at an end adjacent to the negative electrode tab so as to form a first positive electrode thinned portion, and projections of the first positive electrode thinned portion and the negative electrode thinned portion in the third direction at least partially coincide. The technical solution of the present application helps reduce the risk of lithium plating at negative electr

BATTERY CELL, BATTERY APPARATUS AND ELECTRICAL APPARATUS

Resumen de: WO2026170546A1

Disclosed in the present application are a battery cell, a battery apparatus and an electrical apparatus. The battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a positive electrode sheet and a negative electrode sheet; a positive electrode film layer of the positive electrode sheet comprises a positive electrode active material, the positive electrode active material comprising a lithium-containing phosphate; the porosity of the positive electrode sheet is 20-30%; the thickness of a positive electrode current collector is 5%-8% of the thickness of the positive electrode sheet; a negative electrode film layer of the negative electrode sheet comprises a negative electrode active material, the negative electrode active material comprising graphite; the porosity of the negative electrode sheet is 24-33%; the thickness of a negative electrode current collector is 2.5%-5% of the thickness of the negative electrode sheet. The technical solution of the present application achieves a balance among good fast charging performance, power performance and high energy density of 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.

Prüfstand zur Durchführung von Sicherheitstests an Batteriezellen

Resumen de: DE102026106498A1

Es sind Prüfstände zur Durchführung von Sicherheitstests an Batteriezellen mit einer Sicherheitskammer (10), in der die Batteriezelle (14) angeordnet ist und einer Konditioniereinheit (22), über die zumindest eine Temperatur in der Sicherheitskammer (10) regelbar ist, bekannt.Um Schäden an der Konditioniereinheit (22) durch ein thermisches Durchgehen der Batteriezelle (14) zu verhindern, wird vorgeschlagen, dass die Konditioniereinheit (22) mit der Sicherheitskammer (10) fluidisch verbunden ist, wobei die fluidische Verbindung zwischen der Sicherheitskammer (10) und der Konditioniereinheit (22) bei Überschreiten eines definierten Schaltdrucks in der Sicherheitskammer (10), eines definierten Schaltdifferenzdrucks zwischen der Sicherheitskammer (10) und der Konditioniereinheit (22) oder einer definierten Schalttemperatur in der Sicherheitskammer (10) über ein Sicherheitsventil (30; 32) unterbrochen ist und bei Unterschreiten des definierten Schaltdrucks in der Sicherheitskammer (10), eines definierten Schaltdifferenzdrucks zwischen der Sicherheitskammer (10) und der Konditioniereinheit (22) oder der definierten Schalttemperatur in der Sicherheitskammer (10) zumindest teilweise freigegeben ist.

METHOD FOR REPAIRING A BATTERY MODULE

Resumen de: WO2026171435A1

The invention relates to a method for repairing a battery module (1) comprising a plurality of individual battery cells (2) which have electrodes, separators and electrolyte in a cell housing (8), and at least one of which is defective, wherein the at least one defective individual battery cell is electrically short-circuited. The method according to the invention is characterised in that, before being short-circuited, the at least one defective individual battery cell (2) is brought into a safe state in which the electrolyte is suctioned out of the cell housing (8) of the individual battery cell (2) through a provided opening (5, 6, 7) in its cell housing (8).

BATTERY CELL, BATTERY DEVICE AND ELECTRIC DEVICE

Resumen de: WO2026170544A1

Disclosed in the present application are a battery cell, a battery device and an electric device. The dimension of the battery cell in a first direction ranges from 80 to 130 mm; the dimension of the battery cell in a second direction ranges from 200 to 350 mm; the ratio of the dimension of the battery cell in the second direction to the dimension of the battery cell in the first direction ranges from 1.5 to 4.4; and the battery cell comprises a casing, an electrode assembly, a positive electrode connector and a negative electrode connector. The positive electrode connector comprises a first main body portion and a first bending portion, which are arranged at an included angle, the dimension of the first main body portion in the second direction ranging from 1.5 to 3.0 mm, and the dimension of the first bending portion in the first direction ranging from 1.5 to 3.0 mm; and the negative electrode connector comprises a second main body portion and a second bending portion, which are arranged at an included angle, the dimension of the second main body portion in the second direction ranging from 1.2 to 2.5 mm, and the dimension of the second bending portion in the first direction ranging from 1.2 to 2.5 mm. The technical solution of the present application has a more reasonable structure, further improving the energy density and fast-charging reliability of the battery.

BATTERY APPARATUS AND ELECTRIC APPARATUS

Resumen de: WO2026170999A1

The present application provides a battery apparatus and an electric apparatus. The battery apparatus comprises a frame, a heat exchange plate, a connecting base, and a tube fitting; the frame encloses to form an accommodating cavity, the heat exchange plate is arranged on one side of the accommodating cavity, the heat exchange plate is provided with a flow channel, the heat exchange plate extends to an outside of the accommodating cavity and has an opening outside the accommodating cavity, and the opening is in communication with the flow channel; the connecting base covers the opening on the heat exchange plate and is connected to the heat exchange plate, the connecting base is provided with a connecting through-hole, and the connecting through-hole is in communication with the opening; and the tube fitting is connected to the connecting base and is in communication with the opening on the heat exchange plate by means of the connecting through-hole. As described above, a heat exchange plate has a portion located outside an accommodating cavity, and an opening on the heat exchange plate is located outside the accommodating cavity, thereby allowing both a connecting base and the opening to be located outside the accommodating cavity. On the one hand, this facilitates detection of leakages, and on the other hand, if leakage occurs in a connection between the two, this allows for easier repair of the leakage.

BATTERY ASSEMBLY AND DEVICE INCLUDING THE SAME

Resumen de: US20260246075A1

0000 A battery assembly according to an embodiment of the present disclosure is a battery assembly comprising a plurality of battery cell units, each comprising at least one battery cell and a cell cover covering a lower surface and both side surfaces of the respective at least one battery cell, in which the cell cover comprises at least one cell cover venting hole at a lower surface portion corresponding to the lower surface of the respective at least one battery cell, electrode leads protrude from both end surfaces in a longitudinal direction of the respective at least one battery cell, and a foamed layer is adjacent to at least one of the electrode leads of the respective at least one battery cell.

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.

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.

HOUSING DEVICE, ENERGY STORAGE SYSTEM, MOTOR VEHICLE, AND MANUFACTURING METHOD FOR AN ENERGY STORAGE SYSTEM

Resumen de: US20260246056A1

0000 A housing device for receiving cell devices for storing electrical energy for a motor vehicle. Further, the invention relates to an energy storage system comprising at least one housing device and at least one cell device, a motor vehicle with an energy storage system, and a manufacturing method for manufacturing an energy storage system.

BATTERY APPARATUS AND ELECTRIC APPARATUS

Resumen de: US20260246004A1

0000 A battery apparatus of the present application comprises a case body, a battery cell assembly, and a heating component. The battery cell assembly is located in an accommodating space, and comprises a plurality of battery cells arranged in a first direction. The first direction intersects a height direction of the case body. The heating component is located in the accommodating space and arranged between the battery cell assembly and a bottom wall of the case body. The heating component comprises a heating member and protective layers. In the height direction of the case body, the protective layers are respectively provided on both sides of the heating member. The protective layers on both sides of the heating member are connected to each other.

BATTERY PROCESSING DEVICE AND PROCESSING METHOD

Resumen de: US20260246111A1

0000 A battery processing device and a processing method. The battery processing device includes a material conveying assembly, a pairing assembly, and a welding assembly. The material conveying assembly is configured to convey a first electrode assembly and a second electrode assembly, where the first electrode assembly and the second electrode assembly each include an electrode main body and a tab part disposed on the electrode main body. The pairing assembly is configured to pair the first electrode assembly and the second electrode assembly such that the electrode main body of the first electrode assembly and the electrode main body of the second electrode assembly are stacked on each other. The welding assembly is configured to weld the tab part of the paired first electrode assembly and the tab part of the paired second electrode assembly.

POLE INSPECTION DEVICE AND INSPECTION METHOD

Resumen de: US20260243696A1

A pole inspection device comprises image collection devices, a first light source, and a second light source; the image collection devices are movably arranged and have a first position where an extreme pole is inspected and a second position where a minimalistic pole is inspected; the first light source is provided on one side of the image collection devices and is configured to emit first light towards at least one side surface of the extreme pole in the first position of the image collection devices; the second light source is configured to be arranged above the image collection devices and surrounds the minimalistic pole; and the second light source is configured to emit second light towards the minimalistic pole in the second position of the image collection devices.

BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: US20260243839A1

Provided are a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a data obtaining unit configured to obtain a first target full-cell profile representing a relationship between capacity and voltage of a target cell at a first electric stimulation applied to the target cell, and temperature information of the target cell, and a control circuit configured to generate an estimated full-cell profile based on the first target full-cell profile and an overpotential profile. The control circuit determines a first performance factor group as a primary estimation result for charge/discharge performance of the target cell by applying a cell diagnosis logic to the estimated full-cell profile. The control circuit determines a second performance factor group as a secondary estimation result for the charge/discharge performance of the target cell by applying a factor correction model to the first performance factor group and the temperature information.

BATTERY CELL, BATTERY DEVICE, AND ELECTRIC DEVICE

Resumen de: WO2026170543A1

A battery cell, a battery device, and an electric device. The battery cell comprises an electrode assembly and an electrolyte, wherein the electrode assembly comprises a positive electrode sheet and a negative electrode sheet; a positive electrode film layer of the positive electrode sheet comprises a positive electrode active material, the positive electrode active material comprises a lithium-containing phosphate, and the porosity of the positive electrode sheet is 20-30%; a negative electrode film layer of the negative electrode sheet comprises a negative electrode active material, the negative electrode active material comprises graphite, and the porosity of the negative electrode sheet is 24-33%; the electrolyte comprises an electrolyte salt and a solvent, the solvent comprises a linear carboxylate ester and a linear carbonic ester, the mass percentage of the linear carboxylate ester in the electrolyte is 8.5%-40%, and the mass percentage of the linear carbonic ester in the electrolyte is 8.5%-50%. The battery cell simultaneously achieves good fast charging performance, good cycle performance and high energy density of a battery.

CATHODE ACTIVE MATERIAL, CATHODE MIXTURE, BATTERY, AND METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL

Resumen de: US20260245889A1

A main object of the present disclosure is to provide a cathode active material with which the increase in resistance due to charge and discharge can be suppressed. The present disclosure achieves the object by providing a cathode active material including: a crystalline primary particle containing Li, TM, which is a transition metal, and O, wherein the cathode active material is an aggregate configured by a plurality of the primary particle; an average particle size of the primary particle in the aggregate is 0.5 μm or more; and in a pore diameter distribution obtained by a mercury press-in method, a peak is present in a range of 65 nm or more and 300 nm or less.

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.

LITHIUM-ION BATTERY

Resumen de: WO2026170858A1

The present invention relates to the technical field of lithium-ion batteries, and specifically relates to a lithium-ion battery having good fast charging cycle performance, high-temperature storage performance, and high energy density. The lithium-ion battery comprises a positive electrode sheet, a negative electrode sheet, and a non-aqueous electrolyte; the positive electrode sheet comprises a positive electrode material layer comprising a positive electrode active material; the positive electrode active material comprises a phosphate compound; the non-aqueous electrolyte comprises an additive, a lithium salt, and a non-aqueous organic solvent; the lithium salt comprises lithium bis(fluorosulfonyl)imide; the additive includes a first additive; the solvent comprises a compound of structural formula 2; and the lithium-ion battery satisfies: 2.8≤C/(10A+B)+D/100≤14, 0.05≤A≤2, 0.5≤B≤6, 24≤C≤56, and 160≤D≤220.

LITHIUM-MANGANESE DIOXIDE BATTERY

Resumen de: WO2026171291A1

A lithium-manganese dioxide battery, comprising a positive electrode sheet, a negative electrode sheet, a separator and an electrolyte solution, wherein a positive electrode active material of the positive electrode sheet comprises manganese dioxide, and the negative electrode sheet comprises a lithium metal negative electrode; and the separator comprises a base membrane and a coating located on the surface of at least one side of the base membrane, with the coating comprising a polymer solid electrolyte and an inorganic solid electrolyte. The separator in the lithium-manganese dioxide battery is functionalized by means of a combined coating of the polymer solid electrolyte and the inorganic solid electrolyte, such that the liquid retention capacity of the separator is increased, and the defect of the reduced amount of separator electrolyte solution caused by the expansion of a positive electrode during a discharge process is avoided.

BATTERY CELL ASSEMBLY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL DEVICE

Nº publicación: WO2026170613A1 20/08/2026

Solicitante:

SHENZHEN INX TECH CO LTD [CN]
\u6DF1\u5733\u6B23\u754C\u80FD\u6E90\u79D1\u6280\u6709\u9650\u516C\u53F8

Resumen de: WO2026170613A1

Provided in the present application are a battery cell assembly, a battery module, a battery pack and an electrical device, belonging to the technical field of battery packaging. The battery cell assembly comprises: a battery cell having two main planes opposite to each other in a first direction; and an elastic assembly provided on the two main planes and configured to buffer expansion of the battery cell during charging. The elastic assembly comprises: a first elastic member, which is provided to cover the middle portions of the two main planes, the first elastic member having a first hardness; and a second elastic member, which is provided to cover the portions of the two main planes that are not covered by the first elastic member, the second elastic member having a second hardness different from the first hardness. The technical problem to be solved is how to limit expansion of a battery cell while protecting the battery cell. The present application achieves the technical effects of better buffering expansion of different portions of the main planes of the battery, thereby limiting excessive expansion of the battery cell and protecting the battery cell.