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1482
resultados
Última actualización
11/09/2025 [07:18:00]
Resultados 1175 a 1200 de 1482
Resumen de: US2025273730A1
Provided are an electric vehicle, and a lithium ion battery and a manufacturing method therefor. The lithium ion battery includes a first metal plate, a second metal plate, a metal frame, a battery cell, poles, and an explosion-proof valve; the first metal plate, the metal frame, and the second metal plate are sequentially connected to form a mounting chamber; the battery cell is accommodated in the mounting chamber; the poles are provided on the metal frame in an insulating manner and are electrically connected to the battery cell; the explosion-proof valve is provided on the metal frame; and the metal frame is provided with a liquid injection hole.
Resumen de: US2025273787A1
The battery pack comprises a plurality of cell modules; and at least one battery-related device, wherein the plurality of cell modules are arranged side by side in a longitudinal direction thereof, with an intermediate space interposed therebetween, and the at least one battery-related device is disposed inside the intermediate space or above the intermediate space.
Resumen de: US2025273781A1
A cell top cover rewelding reflow system includes a discharge conveyor line, a reflow conveyor line, and a sorting module. An input end of the discharge conveyor line is connected to welding equipment, and an output end extends toward a discharge position; the reflow conveyor line is disposed on one side of the discharge conveyor line, and an output end of the reflow conveyor line is connected to the welding equipment; a conveying direction of the discharge conveyor line is opposite to a conveying direction of the reflow conveyor line, and the discharge conveyor line and the reflow conveyor line are arranged side by side; the sorting module includes a first frame and a pickup member, where the first frame, the discharge conveyor line, and the reflow conveyor line are relatively fixed, and the pickup member is movably disposed on the first frame.
Resumen de: US2025273726A1
An electrode for a secondary battery may include an electrode collector, a coating portion having an active material coated on the electrode collector, a first non-coating portion on which the active material is not applied to the electrode collector, and a second non-coating portion on which the active material is not applied to the electrode collector. The first non-coating portion may be adjacent to the coating portion in a width direction perpendicular to a longitudinal direction of the electrode collector, the first non-coating portion having a longitudinal dimension extending along the longitudinal direction, the first non-coating portion configured to be bent and electrically coupled to a can member of the secondary battery. The second non-coating portion may be adjacent to the coating portion in the longitudinal direction. The electrode may be stacked into a stack with a separator and a second electrode of an opposite polarity than the electrode.
Resumen de: WO2025177405A1
This electrode composition is for a secondary battery electrode layer and comprises an electrolytic solution. The electrode composition satisfies all of criteria (1) through (4): (1) the composition contains an active substance and an additive but does not contain a binder resin; (2) the HSP distance (Ra_Act) between the additive and the active substance is 12.0 MPa0.5 or less; (3) the HSP distance (Ra_Elec) between the additive and the electrolytic solution is 14.0 MPa0.5 or less; and (4) the weight average molecular weight (Mw) of the additive is 50,000 or less.
Resumen de: WO2025177410A1
This negative electrode material for lithium-ion secondary batteries contains silicon particles. The silicon particles have an average particle size of 0.1 μm to 10 μm, inclusive. The silicon particles have an internal region and a surface region. The surface region includes a silicide. The thickness of the surface region is 10 nm to 500 nm, inclusive.
Resumen de: WO2025177116A1
Provided is a novel positive electrode active material. A positive electrode active material according to the present invention includes a lithium cobalt oxide. The lithium cobalt oxide includes magnesium, aluminum, and nickel. A powder of the lithium cobalt oxide has a volume resistivity of at least 1.0×E+8 Ω⋅cm but no more than 5.0×E+8 Ω⋅cm at a pressure of 64 MPa. When the lithium cobalt oxide is analyzed by XPS, the magnesium concentration (Mg/Co) is at least 0.50 but no more than 0.90 relative to a cobalt concentration of 1, and the half width of the Mg 1s peak is at least 1.0 eV but no more than 2.6 eV.
Resumen de: WO2025177213A1
Electrochemical energy-storage cells that include cores having cathode-active materials of both nickel-oxide (NO) type and metal-based phosphate (MP) type, wherein the MP active material is provided to increase resistance to thermal runaway. In some embodiments: the NO and MP active materials are provided on differing cathodes; cathodes include a blend of the NO and MP active materials; a weight ratio of MP active material to NO active material varies within a cathode-active layer, in some cases with a weight percentage of MP active material increasing in a direction away from a current collector; cathodes include a cathode-active layer having multiple sublayers having differing uniform blends of NO and MP materials; cathodes include discrete NO and MP layers, with some embodiments having the NO layer located between the MP layer and a current collector; and/or cathodes include particles each composed of both NO and MP active materials. Methods are also disclosed.
Resumen de: US2025273816A1
Electrochemical devices are disclosed for various applications such as secondary batteries. In an embodiment, an electrochemical device includes a positive electrode, a negative electrode, a separator, and an electrolyte. The separator includes a porous membrane including a core-shell structure that includes formed on at least one polyolefin strand. The coating shell includes one or more of a hydrophilic inorganic material or a hydrophilic polymer. The electrolyte includes a nitrile-based compound. The electrochemical device exhibits high ionic conductivity by including the porous separator having wettability to the electrolyte.
Resumen de: US2025273811A1
A battery system includes: a coffin having a battery compartment and a sand-filled compartment separated from the battery compartment; and a battery pack accommodated within the battery compartment. The battery pack includes a pack housing, a plurality of battery cells accommodated within the pack housing, and a pack venting element in the pack housing configured to exhaust venting gases from the pack housing. The sand-filled compartment forms a venting channel filled with sand and is configured to guide venting gases exhausted from the pack venting element through the sand to a venting outlet in the coffin in the event of a thermal runaway of one or more of the battery cells of the battery pack.
Resumen de: US2025273655A1
A method for producing a positive electrode active material which can minimize the surface degradation of a positive electrode active material which occurs in a washing process, effectively control residual lithium, and form a uniform coating layer on the surface of the positive electrode active material, the method including the steps of: preparing a lithium transition metal oxide; mixing the lithium transition metal oxide and a first washing solution to first wash and then first filter the lithium transition metal oxide; simultaneously second washing and second filtering the lithium transition metal oxide using a filter device capable of washing and filtering simultaneously with a second washing solution; and drying the lithium transition metal oxide, then mixing a coating element-containing raw material with the dried lithium transition metal oxide and heat-treating the mixture to form a coating layer. A positive electrode active material produced by the method is also provided.
Resumen de: US2025273794A1
A battery cell includes a housing, an electrode assembly, and an insulating member. The housing includes a first wall. The electrode assembly is housed within the housing. The insulating member is covered on an outer side of the housing and covers an outer surface of the first wall that is away from the electrode assembly in a thickness direction of the first wall. The insulating member is further provided with a first hollow region; along the thickness direction of the first wall, the first hollow region is positioned on a side of the first wall that is away from the electrode assembly; the first wall forms a first exposed region at a position corresponding to the first hollow region; and the first exposed region is configured for connecting with a compression strip.
Resumen de: WO2025178469A1
Provided is a solid-state battery device. The solid-state battery includes a cell. The cell includes a positive electrode, a negative electrode, and a solid electrolyte layer. The positive electrode includes positive electrode active material particles, solid electrolyte particles, and carbon particles. The positive electrode active material particles include a positive electrode active material configured to bind to lithium ions. The positive electrode active material particles include single crystal particles, each of which does not include polycrystalline grains therein, and thus first and second solid electrolyte materials are absent inside the single crystal particles, but the first solid electrolyte material is in contact with the surface of the single crystal particles. The positive electrode has a lithium ion diffusivity in the range of 1x10-14 cm2/s to 1x10-7 cm2/s.
Resumen de: WO2025178244A1
A battery module disclosed herein includes: a plurality of battery cells; a cover portion overlapping at least a portion of the plurality of battery cells; a blocking member disposed in at least one of the spaces between the plurality of battery cells and protruding further than the plurality of battery cells toward the cover portion; a first protruding portion protruding from the cover portion toward the plurality of battery cells and including a pair of protrusions; and a venting flow path formed inside the cover portion, wherein the blocking member is inserted between the pair of protrusions of the first protruding portion.
Resumen de: WO2025178298A1
The present disclosure relates to an all-solid-state battery and can provide an all-solid-state battery comprising a cathode, a solid electrolyte layer, an anodeless coating layer, and an anode current collector, and a manufacturing method therefor, wherein the anodeless coating layer includes amorphous carbon and silver nanoparticles, and when the anode-free coating layer is divided in the thickness direction into two equal parts, referred to as a first region and a second region in order from the side closer to the anode current collector, the ratio (C2/C1) of the silver nanoparticle content (C2) in the second region to the silver nanoparticle content (C1) in the first region falls within the range of 0.4 to 2 after charging/discharging. This configuration ensures excellent reactivity between silver nanoparticles and lithium ions, and high lithium ion conductivity. Even after charge and discharge cycles, the distribution characteristics of silver nanoparticles remain excellent, contributing to the uniformity of internal resistance in the battery and effectively regulating lithium dendrite growth. Accordingly, the all-solid-state battery of the present invention has an excellent capacity retention rate, particularly, an excellent capacity retention rate at a high rate, and also exhibits excellent lifespan characteristics.
Resumen de: WO2025178286A1
A battery management apparatus according to an embodiment disclosed in the present document includes: a temperature estimation unit for estimating the temperature of a battery on the basis of EIS data associated with the impedance of the battery; a data acquisition unit for acquiring measurement data associated with the measured temperature of the battery; and a temperature correction unit for correcting the estimated temperature of the battery to correspond to the measured temperature of the battery on the basis of at least one correction coefficient generated on the basis of the error between the measured temperature and the estimated temperature.
Resumen de: WO2025176203A1
The present disclosure relates to the field of batteries. Provided are a gel electrolyte precursor fluid, a gel electrolyte solution, a lithium secondary battery and a preparation method therefor. The gel electrolyte precursor fluid comprises a reaction monomer, a cross-linking agent, an initiator and an electrolyte solution, wherein the reaction monomer comprises at least one of the compounds represented by formula 1, and the cross-linking agent comprises at least one of the compounds represented by formula 2-1 and formula 2-2. The gel electrolyte prepared from the gel electrolyte precursor fluid has relatively high oxidation resistance, and also has a relatively high ionic conductivity and a relatively high mechanical strength.
Resumen de: WO2025176157A1
The present application provides an explosion-proof battery valve and a battery. The explosion-proof battery valve comprises a protective shell (1), a piercing pin (2) and a diaphragm (3). The protective shell (1) comprises a shell body (11) and a protective cover (12) which are integrally connected by means of injection molding, wherein the shell body (11) is in the shape of a cylinder with two open ends, and radial exhaust holes (111) are formed in the peripheral wall of the shell body (11); the protective cover (12) is connected to one end opening of the shell body (11) in a plugged manner; and the other end opening of the shell body (11) is a pressure relief hole (113), and the pressure relief hole (113) communicates the radial exhaust holes (111) with the interior of a battery. The piercing pin (2) is arranged on the top wall of the protective cover (12), and is located in an inner cavity of the shell body (11). The diaphragm (3) is arranged in the pressure relief hole (113) in a covering manner, and gas discharged from the interior of the battery can drive the diaphragm (3) to deform towards the piercing pin (2), such that the diaphragm (3) is pierced by the piercing pin (2).
Resumen de: WO2025176150A1
Provided in the present application are a silicon-carbon composite material and a preparation method therefor, and a secondary battery. The silicon-carbon composite material comprises a core and a shell coating the core, wherein the shell comprises a carbon material; and the core comprises a carbon framework, a first silicon-deposited layer formed on the carbon framework, a second silicon-deposited layer formed on the first silicon-deposited layer, and an oxide layer formed between the first silicon-deposited layer and the second silicon-deposited layer, the oxide layer comprising SiOx (0.5≤x≤2). The silicon-carbon composite material provided by the present application has a good specific capacity and initial coulombic efficiency, and also has relatively high cycle performance and rate capability.
Resumen de: WO2025176147A1
A pre-charging method, a pre-charging apparatus, a controller, and a vehicle. The pre-charging method comprises: in response to a pre-charging instruction of a target device, acquiring a first initial temperature of a target component in a pre-charging circuit; controlling the pre-charging circuit to pre-charge a load, and acquiring the number of times of pre-charging and a total pre-charging duration; determining a first real-time temperature of the target component in the pre-charging process on the basis of the total pre-charging duration, a pre-charging temperature rise coefficient of the target component, and the first initial temperature; and controlling the pre-charging circuit on the basis of the first real-time temperature and the number of times of pre-charging. The temperature rise safety of the target component is protected, and pre-charging safety is improved.
Resumen de: WO2025175666A1
Disclosed in the present invention are a method and system for testing the air tightness of a battery pack, the method comprising: step S1, by means of an upper-computer APP, setting air tightness test parameters comprising a target test air pressure and an allowable leakage rate; step S2, the upper-computer APP generating an inflation policy in light of an air inflow rate per unit time and the target test air pressure, and issuing same to a lower-computer program; step S3, the lower-computer program stepwise inflating a battery pack on the basis of the inflation policy until the battery pack reaches the target test air pressure, and displaying a real-time air pressure value; step S4, the lower-computer program stopping inflating the battery pack, and waiting until the air pressure of the battery pack is stable; step S5, the upper-computer APP acquiring from the lower-computer program the difference between an initial air pressure and a final air pressure during a leakage test time period, calculating a leakage rate per unit time and, on the basis of the allowable leakage rate set in step S1, determining whether the air tightness of the battery pack passes; and step S6, the lower-computer program controlling the battery pack to deflate. The present invention can improve the precision of testing the air tightness of batteries, helping to improve the production quality of the batteries.
Resumen de: WO2025175683A1
An electrolyte injection system (100) and an electrolyte injection method. The electrolyte injection system (100) comprises an electrolyte injection device (110), an upper computer (120), and a control device (130). The electrolyte injection device (110) is used for injecting an electrolyte into a battery cell in a battery cell electrolyte injection process. The upper computer (120) is used for: acquiring electrolyte injection data of the battery cell after battery cell electrolyte injection is completed, and locally recording the electrolyte injection data of the battery cell as historical electrolyte injection data; determining a first battery cell set placed in a battery cell tray that currently enters the electrolyte injection device (110); on the basis of the local historical electrolyte injection data, determining from among the first battery cell set a second battery cell set, electrolyte injection of which has not been completed; determining from among the second battery cell set a target battery cell set to be subjected to electrolyte injection; and sending to the control device (130) the position of each target battery cell in the target battery cell set in the battery cell tray. The control device (130) is used for controlling the electrolyte injection device (110) to perform electrolyte injection on the target battery cell set on the basis of the position corresponding to each target battery cell.
Resumen de: US2025273651A1
Provided is a lithium secondary battery negative electrode active material including a pre-lithiated silicon oxide-based complex containing Al, Li, and Si. More particularly, the present disclosure relates to a lithium secondary battery negative electrode active material and a production method thereof in which aluminum (Al) is additionally mixed and heat treated during pre-lithiation of a silicon oxide-based negative electrode active material, such as SiOx(0<x<2), to form compounds, such as Al2O3 and Li2SiO3, which have the effect of preventing the silicon oxide-based negative electrode active material from cracking, which occurs due to shrinkage and expansion of the silicon oxide-based negative electrode active material during charging and discharging of a battery.
Resumen de: US2025273800A1
An electric storage device includes: a first case that houses a first cell group; and a second case that houses a second cell group. Each of the first cell group and the second cell group includes a plurality of electric storage cells that is connected in a first direction. The first case includes an opening portion at one end in a second direction orthogonal to the first direction. The first case and the second case are disposed such that the second case closes the opening portion of the first case.
Nº publicación: US2025273795A1 28/08/2025
Solicitante:
HYUNDAI MOTOR COMPANY [KR]
KIA CORP [KR]
LG ENERGY SOLUTION LTD [KR]
HYUNDAI MOTOR COMPANY,
KIA CORPORATION,
LG Energy Solution, LTD
Resumen de: US2025273795A1
A vehicle battery pack structure includes: a lower case, a plurality of battery modules accommodated in the lower case, an upper case coupled to an upper portion of the lower case and configured to cover a space accommodating the battery modules, and a plurality of module fixing bolts configured to penetrate end plates of the battery modules and fixed to the lower case. The vehicle battery pack structure further includes: a connection support bar disposed on upper sides of the end plates so as to connect the end plates of the battery modules adjacent to each other, and a plurality of support bolts configured to respectively penetrate the upper case and the connection support bar and fixed to the end plates.
BOPI
Sede Electrónica
