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1670
resultados
Última actualización
22/03/2026 [07:31:00]
Resultados 275 a 300 de 1670
Resumen de: WO2026056559A1
Provided are a thermal runaway management system and method, and a battery pack. The thermal runaway management system comprises a battery monitoring circuit, a fire suppression assembly, and a gas collection assembly, wherein the battery monitoring circuit and the fire suppression assembly are both arranged inside a battery pack; the battery monitoring circuit is electrically connected to a battery cell in the battery pack; the fire suppression assembly and the gas collection assembly are electrically connected to the battery monitoring circuit; the battery monitoring circuit can be configured to monitor the temperature of the battery cell, control the fire suppression assembly to perform fire extinguishing inside the battery pack, and simultaneously control the gas collection assembly to collect gas inside the battery pack.
Resumen de: WO2026056554A1
A battery energy storage container and a battery energy storage apparatus. The battery energy storage container comprises a container body and a fire-fighting system; the fire-fighting system comprises aerosol fire-extinguishing devices and a water spray fire-extinguishing device; the aerosol fire-extinguishing devices are configured to be located above a battery pack; the water spray fire-extinguishing device comprises a fire-fighting pipe and spray heads; one end of the fire-fighting pipe is configured to be connected to a fire-fighting water source, and the other end of the fire-fighting pipe is connected to the spray heads; and the spray heads are configured to be located above the battery pack.
Resumen de: WO2026056835A1
A casing (1), a battery cell (2) being accommodated in the casing (1), and the casing (1) comprising a side wall and a bottom cover; the connection point between the side wall and the bottom cover is a connecting portion (4); after the battery cell (2) is accommodated in the casing (1), a bottom corner portion of the battery cell (2) and an inner side surface of the connecting portion (4) do not interfere with one another; the connection point between the side wall and the bottom cover is thinned to form the connecting portion (4); the connecting portion (4) comprises a longitudinal section (42) in a first direction, a transverse section (41) in a second direction, and an arc-shaped section (43) for connecting the longitudinal section (42) and the transverse section (41), the longitudinal section (42) connecting the arc-shaped section (43) and the side wall, and the transverse section (41) connecting the arc-shaped section (43) and the bottom cover; material reduction treatment is performed at the position of an inner rounded corner of the casing (1), so that interference with the battery cell (2) in the casing (1) can be avoided, and the safety of the battery is improved; moreover, the material reduction treatment method reduces the weight of the casing (1) while satisfying molding processing on the casing (1), and improves the energy density of the battery.
Resumen de: WO2026056797A1
The present invention belongs to the field of batteries, and specifically relates to a method for restoring lithium-ion battery capacity, comprising step a and step b; step a: over-discharging a lithium-ion battery to be restored, discharging gas from an inner cavity of the lithium-ion battery, and injecting an electrolyte into the inner cavity; and step b: using a lithium replenishment electrode to replenish lithium in the electrodes of the lithium-ion battery to be restored. In the present invention, a lithium-ion battery prior to scrapping treatment is restored and regenerated, combining over-discharging and lithium replenishment without damaging the electrode assembly; the charge and discharge cycle performance of waste lithium-ion batteries is prolonged and the pressure of waste lithium-ion batteries on the environment is reduced, and battery use costs are lowered.
Resumen de: WO2026056216A1
The present application belongs to the technical field of batteries, and provides a positive electrode active material, a positive electrode slurry, a positive electrode sheet, and a battery. The positive electrode active material comprises lithium manganese iron phosphate and lithium-rich lithium ferrite; the mass ratio of the lithium-rich lithium ferrite added to the positive electrode active material is 0.5%-5%; the particle size D50 of the lithium manganese iron phosphate is d1, and the particle size D50 of the lithium-rich lithium ferrite is d2, 0.05≤d1/d2≤0.32.
Resumen de: WO2026056518A1
A sodium secondary battery and an electric device. The secondary battery comprises a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte; the negative electrode sheet comprises a negative electrode current collector, or comprises a negative electrode current collector and a sodium metal layer arranged on the surface of the negative electrode current collector; the electrolyte comprises colloidal particles, an electrolyte salt and a solvent; the Raman spectrum of the electrolyte comprises a first Raman characteristic peak having a Raman shift ranging from 815 cm-1 to 825 cm-1 and a second Raman characteristic peak having a Raman shift ranging from 845 cm-1 to 855 cm-1, the peak area A1 of the first Raman characteristic peak and the peak area A2 of the second Raman characteristic peak satisfying: (A1+A2)/S1≤30%. In the formula, S1 represents the sum of peak areas of all characteristic peaks appearing in the Raman spectrum and having a Raman shift ranging from 800 cm-1 to 900 cm-1. The sodium secondary battery achieves both high capacity and high safety performance.
Resumen de: WO2026056509A1
The present application relates to the technical field of secondary batteries, and provides a battery cell, a secondary battery, and an electric device. By using a graphite material having a high initial Coulombic efficiency and an ID/IG ratio of 0.06-0.25 in combination with a silicon-based material as a negative electrode active material, a negative electrode sheet is able to maintain a high initial Coulombic efficiency on the basis of adding the silicon-based material, allowing for combination with a lithium-containing phosphate positive electrode active material having a high initial Coulombic efficiency (generally, the initial Coulombic efficiency of the positive electrode active material is not less than 94%), thereby improving the energy density of the entire battery cell while fully utilizing the characteristics of the high initial Coulombic efficiency of the lithium-containing phosphate, and effectively striking a balance between battery energy density and initial Coulombic efficiency. Moreover, controlling a lithium intercalation specific capacity of the silicon-based material to be 1000 mAh/g-2300 mAh/g allows for a thinner negative electrode active material layer, which enables the negative electrode sheet to have a higher energy density, thereby taking into account both energy density and rate performance.
Resumen de: WO2026056538A1
Provided in the present application are a battery separator and a battery. The battery separator comprises a base membrane and a composite coating arranged on one side of the base membrane, wherein the composite coating comprises a heat-resistant material and an adhesive material; the heat-resistant material forms a layered structure and is attached to the base membrane; and the adhesive material is distributed in the layered structure and satisfies: 1.6≤D50/H≤4.3, and 2.2≤D90/H≤6.6, where D50 is the corresponding particle size at which the cumulative particle size distribution of the adhesive material reaches 50%, with the unit thereof being μm, D90 is the corresponding particle size at which the cumulative particle size distribution of the adhesive material reaches 90%, with the unit thereof being μm, and H is the thickness of the layered structure, with the unit thereof being μm. In the battery separator provided by the present application, by combining the heat-resistant material and the adhesive material to form the composite coating, the coating of the separator is effectively simplified; moreover, by limiting the relationship between the particle sizes of the adhesive material and the thickness of the heat-resistant material, the composite coating has a good binding power, and the thickness of the separator can also be reduced, thereby improving the energy density of a battery.
Resumen de: WO2026056464A1
Provided in the embodiments of the present application are a battery apparatus and an electrical device. The present application can improve the use performance of the battery apparatus. The battery apparatus comprises: a box body, a battery cell and a heat exchange apparatus. The box body is provided with a first accommodating cavity, the battery cell being accommodated in the first accommodating cavity, and the heat exchange apparatus being accommodated in the first accommodating cavity and being arranged close to the battery cell. The heat exchange apparatus is used for performing heat exchange with the battery cell. The heat exchange apparatus comprises a pipe body accommodating a heat exchange medium and a first protective layer arranged on the outer surface of the pipe body, the first protective layer being used for blocking the impact of emissions discharged from the battery cell on the pipe body. The heat exchange apparatus further comprises a second protective layer, the second protective layer being provided between the outer surface of the pipe body and the first protective layer, and/or, the second protective layer being arranged on the inner surface of the pipe body, and the second protective layer being used for thermal isolation for the pipe body.
Resumen de: WO2026060419A1
A method for manufacturing an electrode on a current collector includes contacting nano-particle coated micro-particles with a rubbing element to impart an electrical charge to the nano-particle coated micro-particles to form electrically charged nano-particle coated micro-particles, and electrostatically adhering to a current collector the electrically charged nano-particle coated micro-particles to form an electrode on the current collector whereby the electrically charged nano-particle coated micro-particles exhibit sufficient adhesion to the current collector to resist detachment under the force of gravity.
Resumen de: WO2026060309A1
Solution combustion synthesis of amorphous metal-ionic conductor layers is provided using an ambient processing environment having 5% or less relative humidity. The resulting layers are ionic conductors having an ionic conductivity at least 10x their electronic conductivity, and preferably higher in some applications such as solid-state battery electrolytes. The amorphous nature of these layers is a significant advantage for battery applications, since the amorphous morphology inhibits dendrite formation.
Resumen de: WO2026060290A1
Methods, systems, and devices are disclosed for generating a battery charging signal. A method includes generating an initial waveform having a voltage curve and a current curve, wherein the initial waveform includes a leading edge portion characterized by a leading edge parameter, a body portion characterized by a body parameter, and a rest portion characterized by a rest parameter. By comparing leading edge phase shifts and body phase shifts to leading edge thresholds and body thresholds, an adjusted leading edge, body, and rest parameters may be determined and saved for use in generating subsequent waveforms. A method of charging a battery includes charging a battery using a constant current mode, probing the battery with a probing signal and receiving a response signal from the battery, determining a resonance frequency from the response signal, and constructing a charging waveform based on the resonance frequency.
Resumen de: WO2026060045A1
A battery with an anode, a cathode, and an electrolyte in contact with the anode and cathode has an anode-electrolyte interface and a cathode-electrolyte interface where the electrolyte includes a surfactant in sufficient concentration to generate a gradient liquid crystal interphase layer at the anode-electrolyte interface and/or at the cathode- electrolyte interface. The battery may use various battery chemistries including Zn/MnO2, Cu/MnO2, Fe/MnO2, LiTFSI, or NaPF6.
Resumen de: WO2026059720A1
Anodes for Li batteries and energy storage devices are provided, including anodes with an altered solid electrolyte interface (SEI). The anode SEI formed by exposure to a dicarboxylic acid shows significant improvement in energy storage and stability. Methods of making anodes with an improved SEI include exposing a lithium-containing metal anode to an acid solution comprising one or more dicarboxylic acids for a time sufficient to cause the formation of an artificial SEI on a surface of the anode.
Resumen de: WO2026059301A1
The present invention relates to an electrolyte solution additive, an electrolyte solution and a secondary battery which comprise same, and a manufacturing method therefor. According to the present invention, the secondary battery and the like are provided, the secondary battery having a stable film formed on a cathode or an anode for various lithium secondary batteries including high-nickel, mid-nickel, Si anode, lithium iron phosphate (LFP), lithium manganese-rich (LMR) batteries or cobalt-free batteries so as to inhibit side reactions inside a battery, having low charging/discharging resistance such that charging efficiency and output can be improved, enabling an increase in battery resistance to be suppressed even if stored for a long time under high temperature conditions and low temperature conditions, enabling flammable ethylene gas, which is generated at a cathode by SEI decomposition due to an increase in the internal temperature of a nonaqueous electrolyte lithium secondary battery so as to cause thermal runaway acceleration, to react to significantly suppress gas generation in an anode so that thermal runaway can be delayed and even suppressed, having LSV oxidation film and/or a CV reduction film so that cathode/anode protection and solvent decomposition inhibition effects can be exhibited, and having an improved resistance value, which deteriorates during formation in a battery manufacturing line, such that initial resistance and a resistance increase rate can be
Resumen de: WO2026059151A1
A communication control method according to an embodiment of the present invention is a communication control method of a battery system control device interworking with one or more battery management systems (BMSs) and a network switch, and may comprise the steps of: monitoring a dynamic host configuration protocol (DHCP) allocation process between the network switch and each battery management device; collecting client internet protocol (IP) addresses and media access control (MAC) addresses during the monitoring; and matching and storing the IP addresses with battery management devices having MAC addresses matched with the collected MAC addresses.
Resumen de: WO2026056208A1
The present application relates to an energy storage container and a fuse adaptation method. The energy storage container comprises: a busbar unit; a plurality of high-voltage boxes connected to the busbar unit; a plurality of battery clusters, each battery cluster being electrically connected to a corresponding high-voltage box; and a processing unit electrically connected to the plurality of high-voltage boxes. The high-voltage boxes each comprise a first short-circuit protection unit and a first current detection unit electrically connected to the first short-circuit protection unit, wherein the first short-circuit protection units are electrically connected to the processing unit.
Resumen de: WO2026056205A1
A fixing module (1000) for fixing a battery assembly (3000) in place, and an electric device (2000). The fixing module comprises a support member (100) for supporting the battery assembly, and a clamping assembly (200); the clamping assembly comprises a plurality of clamping members (210) arranged at intervals on the support member in a first direction; at least one clamping member is movably arranged on the support member so that the clamping assembly can be switched between a clamping state and a separated state; in the clamping state, the plurality of clamping members are separately in contact with the battery assembly to fix the battery assembly; and in the separated state, at least one clamping member is separated from the battery assembly so that the battery assembly is detachable.
Resumen de: WO2026056203A1
The present application relates to an electrolyte solution additive, an electrolyte solution, and an electrochemical energy storage device. The electrolyte solution additive comprises a fluoroaluminate compound and a nitrile compound, wherein the mass ratio of the fluoroaluminate compound to the nitrile compound is 0.01-20. In the solution provided in the present application, both positive and negative electrode interfaces of a battery can be simultaneously passivated, and film-forming products have high thermodynamic and electrochemical stability, thereby meeting the requirements for high energy density performance of the battery.
Resumen de: WO2026056198A1
The present application discloses a collection wire harness connecting terminal, a battery module, and an electric device. The collection wire harness connecting terminal has conductivity, and comprises an intermediate connecting portion, a wire harness connecting portion, and a busbar connecting portion. The intermediate connecting portion is separately fixedly connected to the wire harness connecting portion and the busbar connecting portion. The wire harness connecting portion and a collection wire harness are fixed by crimping. The busbar connecting portion can be snap-fitted with a preset accommodating portion on a busbar.
Resumen de: WO2026056160A1
Disclosed in the present application are a sodium ion battery positive electrode material and a preparation method therefor, and a sodium ion battery. The preparation method comprises the following steps: mixing a nickel manganese precursor with a sodium salt and a scandium source, and then sintering at a high temperature to obtain a sodium ion battery positive electrode material. The method of the present application uses doping of a nickel site by scandium (Sc), and special charge polarons can be introduced due to a change in crystal structure, which enhances the stability of a framework structure of a transition metal layer in a layered oxide, and improves the mechanical properties of the material, while also improving the electronic conductivity and ion diffusion properties of the material, and alleviating irreversible phase transition of the material. A battery assembled by using the prepared sodium ion battery positive electrode material has excellent rate performance and capacity retention.
Resumen de: WO2026056155A1
Provided are a semi-solid-state battery electrolyte precursor, a semi-solid-state battery electrolyte, and a semi-solid-state battery and a preparation method therefor. The electrolyte precursor comprises: a first polymer monomer, a second polymer monomer, and an initiator; the first polymer monomer is an acrylic monomer or an acrylate monomer; and the second polymer monomer is a fluorine-containing unsaturated monomer.
Resumen de: WO2026056157A1
The present application provides a modified lithium-rich manganese-based positive electrode material, and a preparation method therefor and a use thereof. The modified lithium-rich manganese-based positive electrode material comprises a core and a coating layer coated on the surface of the core. The core comprises a vanadium-doped lithium-rich manganese-based positive electrode material, and the coating layer comprises a vanadium-cerium co-doped lithium-rich manganese-based positive electrode material. By doping vanadium into the core of the modified lithium-rich manganese-based positive electrode material, and synergistically combining vanadium-cerium co-doping in the coating layer, the present application improves the capacity and cycle performance of the modified lithium-rich manganese-based positive electrode material.
Resumen de: WO2026056153A1
The present invention relates to the technical field of container energy storage. Provided are a thermal management assembly based on semiconductor cooling and an energy storage container. The thermal management assembly based on semiconductor cooling provided in the present invention applies to the energy storage container, comprising a semiconductor cooler, an internal heat sink, an external heat sink, a first heat-conducting member, a second heat-conducting member and a third heat-conducting member, wherein the internal heat sink is arranged on the inner side of the wall of the container and encloses to form a first cavity, in which the semiconductor cooler and the first heat-conducting member are arranged, the semiconductor cooler having a cooling surface and a heating surface; and the external heat sink is arranged on the outer side of the wall of the container and encloses to form a second cavity, in which the second heat-conducting member is arranged, the third heat-conducting member connecting the first heat-conducting member and the second heat-conducting member. The thermal management assembly based on semiconductor cooling and the energy storage container provided in the present invention have low energy consumption, low costs and strong environmental adaptability.
Nº publicación: WO2026056145A1 19/03/2026
Solicitante:
EVE ENERGY CO LTD [CN]
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Resumen de: WO2026056145A1
Disclosed in the present application is a battery pack, comprising a housing, a cell assembly, and reinforcing plates. The reinforcing plates each comprise a foam adhesive layer and a fiberglass cloth layer, wherein the foam adhesive layer is wrapped around the fiberglass cloth layer. The cell assembly is arranged in the housing, one reinforcing plate is arranged on each of two side walls of the cell assembly in the direction of length thereof, and the foam adhesive layers are fitted to the side walls of the cell assembly. On the basis of the law of the lever, the battery pack has the lowest bending and shear resistance in the direction of length of the cell assembly, and mounting the reinforcing plates on both sides of the cell assembly in the direction of length thereof can specifically improve the bending and shear resistance of the battery pack.
BOPI
Sede Electrónica
