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1357
resultados
Última actualización
05/05/2026 [07:31:00]
Resultados 250 a 275 de 1357
Resumen de: US20260121165A1
An inter-cell cooling unit for arrangement between two battery cells of a battery module. The inter-cell cooling unit has an outer casing that provides a first cooling side and a second cooling side opposite the first cooling side in the first direction, and at least one first cooling channel section extending within the outer casing that can be flowed through by a coolant. The inter-cell cooling unit includes a multi-layer compression component which is arranged within the outer casing and which includes at least one first outer layer made of a first plastic material and a compression layer made of a second plastic material which is more compressible than the first plastic material and which is flatly adjacent to the first outer layer with respect to the first direction.
Resumen de: US20260121202A1
A fastening structure of a battery pack includes a floor cross member extending in a vehicle width direction; a battery pack including one or more battery modules, and a battery case accommodating the one or more battery modules, the battery pack being disposed below the floor cross member; and a plurality of fastening brackets fixed to a top surface of the battery case and fastened to the floor cross member, in which at least one of the fastening brackets includes a spring-shaped portion that is extendable and contractible in an up-down direction.
Resumen de: US20260121135A1
A system and method for directly connecting a low voltage battery to a zonal controller in an electric vehicle. The zonal controller has inputs for directly receiving the positive and negative battery terminals and performs battery management functions including voltage and current sensing. The direct connection may reduce the use of separate sensors and fuses, enabling a compact and simplified battery connection. Packaging the battery and controller in proximity, such as under a vehicle seat, may allow for short, efficient connections.
Resumen de: WO2026086661A1
A sodium-ion secondary battery and an electric device. The secondary battery comprises a positive electrode sheet. The positive electrode sheet comprises a current collector and a positive electrode film layer located on at least one side surface of the current collector. The positive electrode film layer comprises a binder, the binder comprises a first polymer, and the first polymer comprises a butadiene-M1 copolymer, wherein the M1 monomer comprises at least one of styrene or acrylonitrile, and based on the total mass of the first polymer, the mass content of structural units derived from the M1 monomer is 20％-30％. The positive electrode sheet in the sodium-ion secondary battery has excellent bonding performance, and the secondary battery has good cycle performance.
Resumen de: WO2026086734A1
A sodium secondary battery, an electrolyte and an electric device. The sodium secondary battery comprises: a positive electrode sheet, wherein the positive electrode sheet comprises a positive electrode current collector, at least one side of the positive electrode current collector is provided with a positive electrode active material layer, and the positive electrode active material layer comprises a positive electrode active material; a negative electrode sheet, wherein the negative electrode sheet comprises a negative electrode current collector, and when the sodium secondary battery is charged, metal sodium is deposited in situ on the negative electrode current collector; and an electrolyte, wherein the electrolyte comprises an inorganic salt and/or an organic salt, with the inorganic salt comprising one or more of sodium nitrate, sodium trifluoroacetate and sodium tetrafluoroborate, and the organic salt comprising sodium tetraphenoxyborate.
Resumen de: US20260121024A1
An anode active material includes porous silicon, and a carbon coating disposed on at least part of the surface of the porous silicon. The specific surface area is 130 m2/g or more, and the proportion of the carbon coating is in the range of 1.5 masse to 12 masse relative to the total mass of the porous silicon and the carbon coating.
Resumen de: WO2026086286A1
Provided in the embodiments of the present disclosure are a battery device, an energy storage device and an electric device. The battery device comprises a case assembly, a battery cell assembly and a heat exchange assembly, wherein an accommodating cavity is provided inside the case assembly, the battery cell assembly is arranged in the accommodating cavity, and the heat exchange assembly is arranged in the case assembly; and the heat exchange assembly comprises a heat exchange member and an adapter member, wherein the heat exchange member is connected to the adapter member, the adapter member is flexibly connected to at least part of the case assembly, and at least one medium flow channel is provided inside the heat exchange member and same is configured to conduct a heat exchange medium, which is configured to perform heat exchange with the battery cell assembly, and the medium flow channel is in communication with the outside of the case assembly by means of the adapter member.
Resumen de: WO2026086125A1
The present application relates to the technical field of secondary batteries, and provides a secondary battery cell, a secondary battery, and an electric device, wherein a capacity C of the secondary battery cell satisfies C ≥ 300 Ah, and a width W and a height H of the secondary battery cell satisfy 1 ≤ W/H ≤ 2. The secondary battery cell comprises an electrode sheet, the electrode sheet comprises a main body and an electrode tab, and a distance M between a center line of the electrode tab and an edge of the main body distal to the electrode tab, and a length D of the main body, satisfies the following relationship: 0.6 ≤ M/D ≤ 0.85; the electrode sheet further comprises a positive electrode sheet, a positive electrode active material of the positive electrode sheet comprises a V-doped lithium-containing phosphate material, and a weight percentage of the V element in the positive electrode active material is 0.01%-0.25%. Coordinately controlling the width-to-height W/H ratio of a secondary battery cell, the arrangement position of an electrode tab, and the selection of an active material enables large-capacity batteries with a capacity of at least 300 Ah to achieve low DCR, thereby improving battery energy efficiency.
Resumen de: WO2026086126A1
A lithium metal battery cell, an electrolyte, a battery apparatus, and an electric apparatus. The lithium metal battery cell comprises an electrode assembly and an electrolyte; the electrode assembly comprises a lithium metal negative electrode sheet; the electrolyte comprises a lithium salt, an ether-based solvent, and a fluorine-free ether-based diluent, a solubility of the fluorine-free ether-based diluent with respect to the lithium salt is less than a solubility of the ether-based solvent with respect to the lithium salt, and the fluorine-free ether-based diluent has a structure as represented by formula (1) or formula (2), wherein R1 and R2 are each independently C1-C8 alkyl; R3 represents any C1-C4 alkylene, R4 and R5 are each independently C3-C8 alkyl, and at least one of R1 and R2 is C3-C8 alkyl.
Resumen de: WO2026086345A1
The present application relates to the field of battery management. Disclosed are a battery management circuit, a battery pack and an electronic device. By means of one battery management chip, the connection state between a battery module and the battery management chip can be controlled, so as to control the connection and disconnection between the battery module and a main control board, thereby improving the real-time performance of control. The battery management circuit is disposed on a battery pack, and comprises a battery management chip and a battery module control circuit, wherein the battery management chip detects in real time state parameters of a battery module in the battery pack; and on the basis of the state parameters of the battery module, the battery management chip controls the connection state between the battery module and the battery management chip by means of the battery module control circuit.
Resumen de: US20260121184A1
The present disclosure provides a battery cell including: a cell case including a sidewall having an accommodating space and an end plate; an electrode assembly; and a cap assembly sealing the cell case, wherein the cap assembly includes: a cap plate covering one side of the accommodating space; and a sealing gasket disposed between the cap plate and the cell case, wherein the cap plate includes a first surface facing the accommodating space, a second surface opposite the first surface, and a third surface connecting the first surface and the second surface, the second surface includes an edge region and a central region, and the sealing gasket is formed integrally with the cap plate by insert injection, so that at least a portion thereof is in contact with the edge region.
Resumen de: US20260121036A1
The present invention relates to a positive electrode active material and a lithium secondary battery comprising the same, and more particularly, to a positive electrode active material comprising a mid-Ni type lithium transition metal oxide having a relatively low nickel content, wherein the c-axis length of unit particles constituting the lithium transition metal oxide is increased to enhance the efficiency of reversible intercalation/deintercalation of lithium ions, thereby improving electrochemical characteristics, which are relatively insufficient compared to those of a high-Ni type lithium transition metal oxide having a relatively high nickel content, and to a lithium secondary battery comprising the same.
Resumen de: WO2026086464A1
The present application relates to a negative electrode material and a battery. The negative electrode material comprises a silicon-based material, graphite and an amorphous carbon material, wherein the surface of the silicon-based material is provided with a coating layer; the coating layer comprises at least one of a metal oxide, a metal silicate and a silicon oxide; and at least part of the amorphous carbon material is located on the surface of the graphite. After the testing of the negative electrode material by means of a colorimeter, the obtained yellowness index of the negative electrode material satisfies: 1.5≤YI(D1925)≤30, and -5≤YI(E313-73)≤20. The negative electrode material of the present application can ameliorate side reactions between the negative electrode material and an electrolyte, improve the interface stability of the negative electrode material, and can also reduce the loss of active lithium ions, thereby improving the voltage decay rate of a battery prepared from the negative electrode material.
Resumen de: WO2026086270A1
Provided in the embodiments of the present application are a rotation speed regulation method and apparatus, which can reduce the power consumption of a thermal management system and improve the reliability of the thermal management system. The method is applied to an energy storage system, the energy storage system comprising a thermal management system, wherein the thermal management system is used for regulating the temperature of an energy storage device. The method comprises: acquiring an ambient temperature; on the basis of the ambient temperature, determining an operating mode of a thermal management system, wherein the operating mode includes a natural cooling mode and/or a refrigeration-based cooling mode; and on the basis of the operating mode, regulating the operating rotation speed of a fan in the thermal management system.
Resumen de: DE102024139726A1
Ein Elektrodenmaterial, das ein Aktivmaterial, ein nicht fluoriertes Polymerbindemittel, das eine nachweisbare Markierung umfasst, und einen leitfähigen Füllstoff umfasst.
Resumen de: US20260121162A1
A system includes a prismatic battery assembly including an enclosure, an air flow inlet, an air flow outlet, an air flow channel, and a vent channel. The enclosure has a first end, a second end, a first side wall, and a second side wall. The air flow inlet is disposed at the first side wall, and the air flow outlet is disposed at the second side wall. The air flow channel extends within the enclosure between the air flow inlet and the air flow outlet. The vent channel has a gas vent inlet that is fluidically connected to the air flow channel. The system also includes an air flow source configured to direct air flow from the air flow inlet along the air flow channel and out the air flow outlet. The air flow draws heated vent gasses away from the prismatic battery assembly.
Resumen de: WO2026087644A1
The electrical system (2) for a motor vehicle (1) comprises: - a housing (3) comprising a lower wall (6) and a cover (7) fastened to the lower wall so as to delimit an internal volume comprising electrical components, the cover (7) comprising an upper wall (8) and a lateral skirt (9), the lateral skirt comprising a through-connection orifice (10), - a connection panel (4) extending, in an assembled position, from the through-connection orifice towards the inside of the housing (3), and bearing at least one electrical connection member (13). The connection panel is fastened to the lower wall via at least one elastically deformable electrical conduction member (15), the electrical conduction member electrically connecting the electrical connection member to at least one of the electrical components.
Resumen de: US20260118322A1
An improved system for estimating the SoC of a battery is provided. In one embodiment, an ultrasonic pulser transmits a multiple-cycle sine wave at an excitation frequency through the thickness of a lithium-ion battery. Due to the inherent acoustic nonlinearity of composite materials within the lithium-ion battery (electrodes and electrolytes), part of the ultrasonic energy is converted into a second harmonic wave. An ultrasonic receiver detects this wave on the opposite side of the battery. The strength of the second harmonic is quantified by a nonlinear parameter β′, which correlates linearly with the battery's SoC, increasing with charging and decreasing with discharging. By establishing a linear relationship between β′ and SoC through non-destructive calibration, the system can then estimate the SoC of any battery by measuring the nonlinear parameter β′. This technique enables real-time, accurate, online and offline SoC estimation, making it highly suitable for vehicular applications and non-vehicular applications alike.
Resumen de: WO2026089340A1
The present invention provides a cathode active material for which, in a particle size distribution (PSD) graph, there are two or more peaks, the height ratio of the upper two peaks on the basis of height being in the range of 1-1.5, thus providing a high pellet density, and accordingly achieving a high energy density.
Resumen de: WO2026089576A1
The present invention relates to a positive electrode active material for a sodium secondary battery, a positive electrode comprising same, and a sodium secondary battery. More specifically, the positive electrode active material for a sodium secondary battery exhibits an effect of improving capacity and output performance when applied to a sodium secondary battery due to having a form in which a sodium super ionic conductor (NaSICON) compound is coated in an island shape on the surface of an oxide-based layered compound.
Resumen de: US20260121026A1
A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the negative electrode are provided. The negative electrode includes: a negative electrode current collector including a carbon layer including a first porous substrate and a carbon-based material existing inside the first porous substrate and a silicon layer including a second porous substrate and a silicon-based negative electrode active material existing inside the second porous substrate; and a negative electrode active material layer arranged on a surface of the negative electrode current collector and including a negative electrode active material.
Resumen de: WO2026089193A1
The present invention provides a battery module comprising: a cell stack in which a plurality of cells are stacked; and a module case accommodating the cell stack, wherein the module case includes a case body having openings and end cover assemblies coupled to the openings of the case body, the end cover assemblies each having, formed therein, a mounting structure for fixing the battery module to a pack case and a voltage/current sensing structure comprising a sensing line directly connected to the plurality of cells.
Resumen de: WO2026089554A1
The present application relates to an electrode composition comprising: an electrode active material; an electrode binder; and polymer beads, wherein the polymer beads are soluble in an electrolyte.
Resumen de: DE102024131108A1
Die Erfindung betrifft ein Batteriegehäuse (5), insbesondere einer Traktionsbatterie (3),- mit einem vom Batteriegehäuse (5) umschlossenen Gehäuseinnenraum (6) zur Aufnahme mehrerer elektrochemischer Batteriezellen (7),- mit einer ersten Platte (8), die eine den Gehäuseinnenraum (6) nach unten begrenzende Bodenplatte (9) bildet,- mit einer zweiten Platte (10), die eine den Gehäuseinnenraum (6) nach oben begrenzende Deckelplatte (11) bildet,- mit einer Seitenwand (12), die den Gehäuseinnenraum (6) seitlich begrenzt und die Bodenplatte (9) mit der Deckelplatte (11) verbindet,- wobei zumindest eine Platte von erster Platte (8) und zweiter Platte (10) als Kühlplatte (13) zum Temperieren der Batteriezellen (7) konfiguriert ist,- wobei die jeweilige Kühlplatte (13) wenigstens eine Entgasungsöffnung (14) aufweist, die einen Gasaustausch zwischen dem Gehäuseinnenraum (6) und einer das Batteriegehäuse (5) umgebenen Umgebung (15) ermöglicht,- wobei die jeweilige Entgasungsöffnung (14) mittels einer semipermeablen Membran (16) verschlossen ist, die für Gas durchlässig und für Flüssigkeiten und Festkörper undurchlässig konfiguriert ist.
Nº publicación: WO2026088941A1 30/04/2026
Solicitante:
TORAY IND INC [JP]
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Resumen de: WO2026088941A1
The present invention addresses the problem of providing a polyolefin microporous film that, when used as a separator for a nonaqueous electrolyte secondary battery, achieves both resistance to impact and resistance to internal short-circuiting at a high level without compromising cycle characteristics and output characteristics. The present invention is a polyolefin microporous film that has both characteristics (1) and (2). (1) The puncture strength per basis weight is not less than 0.9 N/(g/m2). (2) In a differential scanning calorimetry (DSC) measurement, the peak top temperature of the maximum peak in the second temperature increase process is not lower than 130°C but lower than 138°C.
BOPI
Sede Electrónica
