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118
resultados
Última actualización
02/11/2026 [10:41:00]
Resumen de: WO2026223035A1
The present application relates to the technical field of batteries, and discloses a battery pack. In the battery pack of the present application, by defining that when 0.2≤c/d-2.8≤9 and/or 0.3≤l/d-6.4≤13, the value range of the thickness of a thermal insulation pad is 0.2-6 mm, the thermal insulation pad can block heat transfer between two single batteries, thereby reducing the risk of thermal runaway of one of the two single batteries after thermal runaway of the other single battery, and improving the thermal safety of the battery pack; moreover, during development of battery packs of different models, configurations of thermal insulation pads can be quickly determined, thereby facilitating improving research and development efficiency and reducing costs. In addition, the present application can prevent the thermal insulation pad from being too thin to effectively block heat transfer between two adjacent single batteries, and can also prevent the thermal insulation pad from being so thick that a single battery readily compresses the adjacent thermal insulation pad during charging and discharging, causing the thermal insulation pad to deform and, in turn, resulting in excessive deformation of a battery case.
Resumen de: US20260341804A1
Provided are a self-supporting flame-retardant polymer electrolyte, a preparation method and use thereof, and a solid-state lithium metal battery. The self-supporting flame-retardant polymer electrolyte includes: a polymer skeleton, formed by polymerization of an enenitrile substance, a phosphate ester containing an unsaturated carbon-carbon double bond, and a cross-linking agent; and succinonitrile, triethyl phosphate, and a lithium salt, all dispersed in the polymer skeleton.
Resumen de: US20260341733A1
Some example embodiments provide a positive electrode active material, a positive electrode including the same and a rechargeable lithium battery. The positive electrode active material includes core particles in a form of secondary particles in which a plurality of primary particles are agglomerated, including a lithium nickel-based composite oxide; and a coating layer disposed on the surface of the core particle and containing cobalt, aluminum, and yttrium.
Resumen de: US20260341837A1
Provided is a two-phase immersion liquid-cooled battery pack including a case, cells, and buffer assemblies. The case includes a cavity, and the cavity is configured to be filled with immersion liquid. The cells are provided in the cavity at intervals. The buffer assemblies are provided among the cells. Each buffer assembly includes a buffer member and spacers. The buffer member is connected to a side of the cell. The spacers are disposed on a side of the buffer member remote from the cell to form a passage between the buffer members. The passage is configured to contain the immersion liquid.
Resumen de: US20260341903A1
A composite separator is disclosed. The composite separator comprises a porous polyolefin substrate and an inorganic coating layer, wherein the inorganic coating layer coated on at least one surface of the porous polyolefin substrate comprises a plurality of inorganic particles, a binder resin, a hydrophilic polymer metal salt, and a polyamide epichlorohydrin resin. The composite separator has good high temperature resistance.
Resumen de: WO2026223592A1
A method for acquiring a characteristic knee point of a battery pack, a BMS, a battery pack, and an electrical device. During maintenance of a battery pack, a BMS can determine, on the basis of a current temperature of the battery pack, a corresponding target C-rate (S101), and control a charging device to charge the battery pack at the target C-rate (S102), thereby determining, on the basis of voltage variation data of the battery pack during the charging process, a characteristic knee point of the battery pack (S103).
Resumen de: WO2026223503A1
The present disclosure relates to the technical field of batteries. Provided are a cover plate assembly, a battery, a battery pack and an electric device. The cover plate assembly comprises a cover plate body, a conductive member, a cap component, and a lead-out tab. The conductive member is located on one side of a first through hole in the cover plate body and passes through the cover plate body. The cap component seals the first through hole. The lead-out tab is connected to the conductive member, and a portion thereof extends to the side of the first through hole facing away from the cap component or into the first through hole, and forms a first connecting portion for connection with a tab, thereby improving the volumetric energy density of the battery.
Resumen de: US20260341934A1
The electrolyte injection method includes: constructing an electrolyte injection curve based on the obtained electrolyte injection time and electrolyte injection volume of a battery sample; dividing the electrolyte injection curve into at least two segments so that the average slopes of two adjacent segments of electrolyte injection curves are different, and taking a connection point between the two adjacent segments of electrolyte injection curves as a target time inflection point; calculating electrolyte injection parameters according to the target time inflection point, the electrolyte injection parameters including the number of electrolyte injection operations and the electrolyte injection volume corresponding to each electrolyte injection operation; and providing an electrolyte to an initial battery according to the electrolyte injection parameters, and performing standing treatment between two adjacent electrolyte injection operations to obtain an electrolyte-injected battery. The electrolyte injection method can significantly improve the electrolyte injection efficiency.
Resumen de: WO2026223144A1
The present application provides a secondary battery and a preparation method therefor, and an electrical apparatus. The secondary battery comprises a positive electrode sheet. The positive electrode sheet comprises: a positive electrode current collector; a positive electrode active material layer, the positive electrode active material layer being located on at least one side of the positive electrode current collector, the positive electrode active material layer comprising a positive electrode active material, and the Mohs hardness of the positive electrode active material being 3-6; and a primer coating layer, the primer coating layer being located between the positive electrode current collector and the positive electrode active material layer, and the porosity of the primer coating layer being less than or equal to 3%.
Resumen de: WO2026222990A1
The present invention relates to a battery rejuvenation method and a rejuvenation solution. The battery rejuvenation method comprises the following steps: S1: perforating a battery to be decommissioned, and injecting a rejuvenation solution; and S2: sealing and then standing for 36 hours or more, wherein said battery is a lithium-ion battery, and the addition amount of the rejuvenation solution is 0.3-1.1 g/Ah. The rejuvenation method provided in the present invention restores the battery capacity by simply injecting the rejuvenation solution, thereby prolonging the service life, without generating gas or damaging the battery structure, thus maintaining battery safety and being environmentally friendly. The rejuvenation solution provided in the present invention has simple components, the lithium salt and the organic solvent used are common upstream products in the battery industry, the preparation process is mature, and the costs are low, thereby facilitating large-scale production.
Resumen de: US20260341797A1
The electrode stack includes: a plurality of electrode sheets stacked along a first direction; and an elongated separator that extends in a zigzag manner between the electrode sheets. A plurality of notches is provided at an outer edge of at least one of the electrode sheets. The separator includes, at each of the notches, a joint portion at which surfaces facing each other are joined together.
Resumen de: WO2026223326A1
The present application relates to a tab adhesive tape application apparatus, comprising driving mechanisms, adhesive tape application heads, and smoothing mechanisms. Each adhesive tape application head and the corresponding smoothing mechanism are both mounted at a driving end of the corresponding driving mechanism. When each adhesive tape application head acquires an adhesive tape, the corresponding driving mechanism drives the adhesive tape application head and the corresponding smoothing mechanism to move together towards a battery cell to be subjected to adhesive tape application, until a corresponding flexible abutting member comes into contact with a battery cell body; then, the flexible abutting member is driven by a corresponding smoothing driving member to move towards the adhesive tape application head, so as to uniformly apply one portion of the adhesive tape to the surface of the battery cell body; when the flexible abutting member moves to the tail end of the battery cell body, the driving mechanism continues to drive the adhesive tape application head and the smoothing mechanism to move, and the flexible abutting member moves obliquely under the combined action of the driving mechanism and the smoothing driving member, so as to work in conjunction with the adhesive tape application head to gradually apply the other portion of the adhesive tape to a tab; and during the adhesive tape application, the adhesive tape is applied mainly depending on the friction forc
Resumen de: WO2026226621A1
A flexible multilayer battery pack insulator to be disposed between stacked cells, within a cell module, of a battery pack of an electric vehicle. The insulator has a multilayer wall including a first layer of material having a first inner surface and a first outer surface with a first flame-resistant coating layer bonded to the first outer surface. Further, a second layer of material having a second inner surface and a second outer surface with a second flame-resistant coating layer bonded to the second outer surface. Further yet, an intermediate layer of foam sandwiched between the first inner surface of the first layer and the second inner surface of the second layer.
Resumen de: US20260343757A1
An electronic device including a housing, an electronic element and a movable member is provided. The housing includes an accommodation space. The electronic element is detachably disposed in the accommodation space. The movable member is movably connected to the housing, and the movable member includes a rotating shaft and a cover plate connected to each other. When the movable member is in a closed state to engage with the housing and cover the accommodation space, the movable member first slides relative to the housing along a first direction and then moves relative to the housing along a second direction, so that the cover plate is separated from the housing and the rotating shaft rotates relative to the housing, so that the movable element is in an open state. The first direction is different from the second direction.
Resumen de: WO2026223488A1
Provided in the present application are a battery cell and a battery pack, relating to the technical field of batteries. In the battery cell provided in the present application, a circuit board and an explosion-proof valve are far away from each other, thereby reducing interference of the explosion-proof valve on the circuit board, and improving reliability and stability of the circuit board.
Resumen de: WO2026223476A1
A sampling assembly, a power distribution box, a battery pack and an electric device. The sampling assembly comprises: a connecting busbar, which is connected to a contact of a relay and is provided with a positioning slot at the connecting end; and a sampling tab, which has one end fitted into the positioning slot and connected to the contact of the relay, and the other end connected to a control board.
Resumen de: US20260341723A1
A method for manufacturing a lithium ion battery including: forming a PGLYD polymer imparted with adhesiveness by forming urethane bonds in a PGLYD polymer; forming a cathode that includes lithium, iron, phosphorus, and amorphous carbon; forming an anode that includes graphite and amorphous carbon; and enclosing the cathode, the anode, and a predetermined electrolyte in a predetermined container and hermetically sealing the container, wherein at least one of the cathode or the anode includes, as a binder, the PGLYD polymer imparted with adhesiveness.
Resumen de: WO2026223153A1
A solid-state battery cell, a battery apparatus, an electrical apparatus, a positive electrode, a positive electrode active material, and a preparation method therefor. The solid-state battery cell comprises a positive electrode, an electrolyte layer, and a negative electrode. The electrolyte layer is located between the positive electrode and the negative electrode. The positive electrode comprises a positive electrode film layer. The positive electrode film layer comprises a positive electrode active material and a sulfide electrolyte. The positive electrode active material comprises one or more of an alkaline earth element-doped lithium titanium sulfide and an alkaline earth element-doped lithium titanium selenium sulfide. The solid-state battery cell can have high energy density, good cycle performance, and good rate performance.
Resumen de: WO2026222983A1
A bent lithium battery connecting piece, a cover plate, and a lithium battery, relating to the technical field of lithium batteries. The bent lithium battery connecting piece comprises a first welding portion (100), a second welding portion (200), and a third welding portion (300), wherein the first welding portion (100) is used for welding a pole, and the second welding portion (200) and the third welding portion (300) are used for welding cell tabs. The second welding portion (200) and the third welding portion (300) are separately connected to the first welding portion (100) by means of bent portions (110), and due to the bent portions (110), the first welding portion (100) is located in a plane different from that of the second welding portion (200) and the third welding portion (300). The bent portions (110) are each provided with a clearance position (120), and the clearance positions (120) enable gaps to be respectively formed between the first welding portion (100) and the second welding portion (200) and between the first welding portion (100) and the third welding portion (300). By means of the clearance positions, clearance space can be provided for cell tabs, thereby preventing impact on normal welding caused by tabs overlapping with protrusions of the bent portions of the connecting piece.
Resumen de: WO2026223440A1
The present disclosure relates to the technical field of batteries, and provides a battery module, a battery pack, and an electric device. The battery module comprises a lithium battery assembly, a first power distribution assembly, a sodium battery assembly, and a second power distribution assembly. The lithium battery assembly is electrically connected to the first power distribution assembly, and the sodium battery assembly is electrically connected to the second power distribution assembly. This keeps the lithium battery assembly and the sodium battery assembly independent of each other, preventing mutual interference between the lithium battery assembly and the sodium battery assembly. Parameters of the lithium battery assembly and the sodium battery assembly, such as internal resistance, voltage, capacity, discharge curve, and service life, do not need to be consistent. Accordingly, the battery module does not need to be provided with components and corresponding circuits for making electrical performance parameters of the lithium battery assembly and the sodium battery assembly consistent, thereby simplifying battery module structure and reducing battery module cost.
Resumen de: WO2026223722A1
The present application relates to the technical field of battery electrodes. Disclosed is a manufacturing method for an integrated electrode. The method comprises: subjecting precursor fibers to pre-oxidation, carbonization and cutting to obtain carbonized fiber filaments; activating the carbonized fiber filaments to obtain porous fiber filaments; subjecting the porous fiber filaments to a vapor deposition reaction to combine same with an energy storage battery electrode active material, so as to obtain active fiber filaments; and coating the active fiber filaments with a conductive and/or ion-conducting coating material to obtain an integrated electrode. By means of the synergistic effects of the porous carbon framework structural design, vapor deposition of active materials, and surface coating, the problem of active materials of traditional electrodes being prone to delaminating from current collectors during charging and discharging is solved, and the electrode manufacturing process is simplified. The manufactured self-supporting integrated electrode has high specific capacity and excellent cycling stability and rate performance, and can be applied to energy storage devices such as lithium-ion batteries, sodium-ion batteries, lithium-sulfur batteries and solid-state batteries.
Resumen de: US20260341813A1
A method is provided for preparing for processing of a production battery. The method includes determining a product exterior surface finish, product dimensions, product mass, and product center-of-gravity of the production battery; identifying a thermoplastic material and a surface grain for forming a housing having an exterior surface finish that is the same as the product exterior surface finish; modeling, with a processor, a surrogate battery including the housing and a ballast mass received within the housing, to provide the surrogate battery with a surrogate mass the same as the product mass and a surrogate center-of-gravity the same as the product center-of-gravity; forming the housing from the thermoplastic material and with the surface grain; forming the surrogate battery by positioning the ballast mass within the housing; and setting up equipment for processing the production battery by engaging the equipment with the surrogate battery.
Resumen de: DE102026115593A1
Ein Verfahren zur Batterieidentifizierung wird an einem Batteriemodul während der Herstellung eines Batteriepacks durchgeführt und beinhaltet: Messen einer Spannung einer Temperaturmessschaltung, die konfiguriert ist, um eine Temperatur einer Sammelschiene zu messen, die an dem Batteriemodul in einem Zustand bereitgestellt ist, in dem zu einem Zeitpunkt der Montage des Batteriemoduls in einem Gehäuse des Batteriepacks kein Strom durch die Sammelschiene fließt; Schätzen eines Eigenwiderstands eines Thermistors, der mit der Temperaturmessschaltung verbunden ist, basierend auf der gemessenen Spannung; Berechnen der Spannung der Temperaturmessschaltung basierend auf dem geschätzten Eigenwiderstand und einem Widerstand eines Unterscheidungswiderstands, der in der Temperaturmessschaltung bereitgestellt ist; und Bestimmen, ob das Batteriemodul ein unverfälschtes Produkt ist, durch Vergleichen der berechneten Spannung mit der gemessenen Spannung.
Resumen de: WO2026223441A1
A sealing structure and a battery. The sealing structure comprises a terminal post (1), a plastic component (2) and a sealing ring (3). The terminal post (1) comprises a crown portion (13), a head portion (11) and a support portion (12) that are coaxially connected in sequence, wherein the diameter of the support portion (12) and the diameter of the crown portion (13) are both greater than the diameter of the head portion (11); a smooth transition is provided between the support portion (12) and the head portion (11) via a first transition structure (14), and/or between the crown portion (13) and the head portion (11) via a second transition structure (15); the plastic component (2) is provided with a through hole, the plastic component (2) is sleeved outside the head portion (11) and abuts against the end face of the crown portion (13) facing the head portion (11); and the sealing ring (3) is sleeved outside the head portion (11), the sealing ring (3) is elastically deformable and abuts against the first transition structure (14) and/or the second transition structure (15), used for sealing the gap between the plastic component (2) and each of the crown portion (13), the head portion (11) and the support portion (12).
Nº publicación: US20260341852A1 29/10/2026
Solicitante:
AESC JAPAN LTD [JP]
AESC Japan Ltd.
Resumen de: US20260341852A1
A lid assembly and a lithium-ion battery is provided. The lid assembly includes a lid base, a lower insulating member stacked with the lid base, and a terminal and an explosion protection valve disposed on the lid base. The terminal penetrates the lower insulating member and the lid base. A terminal base plate is provided on the terminal. A first protruding portion corresponding to a position of the explosion protection valve and a second protruding portion are provided on the lower insulating member. A surface of the second protruding portion includes a planar region and a curved region. A minimum dimension of an orthogonal projection of the curved region on the lid base in a length direction is L1. A minimum distance between the planar region and the terminal base plate is L0, which satisfies 0.5≤L1/L0≤0.9.
BOPI
Sede Electrónica
