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1310
results.
Updated on
24/04/2025 [07:17:00]
Results 475 to 500 of 1310
Absstract of: WO2025076885A1
The present application is applicable to the technical field of power batteries, and provides a battery cell, a battery, and an electrical apparatus. The battery cell (100) comprises: an adapter (10), a welding mark (20) being formed in a protruding manner on the adapter; and a covering member (30), connected to the adapter and covering the welding mark, an accommodation cavity (40) used to accommodate the welding mark being formed between the covering component and the adapter component, and the welding mark being at least partially accommodated in the accommodation cavity. The battery cell provided by the present application is provided with an accommodation cavity between the covering component and the adapter component, at least part of the welding mark being accommodated in the accommodation cavity, the welding mark accommodated in the accommodation cavity enabling the covering component to better contact the adapter component near the welding mark, and decreasing the occurrence of situations wherein the covering component is suspended, so that negative impact of the welding mark on the covering component is reduced, the covering component can better contact the adapter component, and the problem of the covering component potentially loosening or falling off is alleviated.
Absstract of: WO2025076875A1
The present disclosure belongs to the technical field of electronic assemblies. Disclosed are a battery mounting structure, an outdoor mobile power supply and an electronic assembly. The battery mounting structure comprises a telescopic member, a first battery assembly and at least one second battery assembly, wherein the first battery assembly is sleeved on the telescopic member; and one second battery assembly is sleeved on the telescopic member and electrically connected to the first battery assembly, and the remaining second battery assemblies are sequentially sleeved on the telescopic member in the axial direction of the telescopic member and electrically connected to each other in sequence. The battery mounting structure provided in the present disclosure allows a user to freely increase or reduce the number of second battery assemblies according to actual electricity needs, thereby freely increasing or decreasing the battery capacity, improving the ease of use and portability.
Absstract of: WO2025076874A1
The present disclosure relates to the technical field of electronic assemblies. Disclosed are an outdoor mobile power supply and an electronic assembly. The outdoor mobile power supply comprises a base assembly, a guide rail member, a telescopic member, and a first battery. The guide rail member is provided on the base assembly; the telescopic member is provided on the base assembly, and a part of the telescopic member is located in the guide rail member; the first battery is provided on the guide rail member and is sleeved on the telescopic member, and the end of the first battery distant from the guide rail member is provided with a first electrical connection portion. According to the outdoor mobile power supply provided by the present disclosure, a user can flexibly assemble and disassemble a battery according to usage and mobile transportation requirements, thereby effectively improving the convenience of use and portability.
Absstract of: WO2025077183A1
Provided are a separator, and a preparation method therefor and the use thereof. The separator comprises a base film, wherein a positive electrode region and a negative electrode region are respectively located at two sides of the base film, the positive electrode region is used for being connected to a positive electrode sheet, and the negative electrode region is used for being connected to a negative electrode sheet; a fluoropolymer material layer is provided on a surface of the positive electrode region; and an Al-containing inorganic material layer is provided on a surface of the negative electrode region, the Al-containing inorganic material layer further comprises non-fluoropolymer particles, the non-fluoropolymer particles are arranged in the Al-containing inorganic material layer or partially embedded into the Al-containing inorganic material layer, and the height of the non-fluoropolymer particles embedded into the Al-containing inorganic material layer is 20-50% of the particle size of the non-fluoropolymer particles. A coating of the separator has strong adhesion to a negative electrode and can meet the requirements of high-speed lamination of a battery.
Absstract of: WO2025077178A1
Provided are a die cutting and slitting system, and a visual inspection method for die cutting and slitting. The die cutting and slitting system comprises: an inner electrode-sheet inspection mechanism (1004), an outer electrode-sheet inspection mechanism (1005), a conveying apparatus and an upper computer, wherein the inner electrode-sheet inspection mechanism (1004) acquires first image information, the outer electrode-sheet inspection mechanism (1005) acquires second image information, and the upper computer performs quality inspection on the basis of the first image information and the second image information,. Inspections are respectively performed on inner and outer electrode sheets on the basis of an inner inspection mechanism and an outer inspection mechanism, such that the product quality of electrode sheets is confirmed by means of two paths of electrode sheet images, thereby effectively increasing the yield of a die cutting stage in a cutting process, and effectively screening out electrode sheets with poor quality.
Absstract of: WO2025077152A1
A sodium ion battery positive electrode material, and a preparation method therefor and a use thereof. The preparation method comprises the following steps: (1) injecting a nickel-iron-manganese mixed salt solution, a complexing agent and a precipitant in parallel into a bottom liquid, carrying out a primary coprecipitation reaction, then injecting a copper-iron-manganese mixed salt solution, a complexing agent and a precipitant in parallel into the bottom liquid, and carrying out a secondary coprecipitation reaction to obtain a positive electrode precursor; (2) mixing the positive electrode precursor, a metal oxide and an organic solvent, stirring to obtain a coated precursor, and mixing and sintering the coated precursor and a sodium source to obtain a semi-finished positive electrode material; and (3) coating the semi-finished positive electrode material with a coating agent to obtain the sodium ion battery positive electrode material. The sodium ion battery positive electrode material has good structural stability, the capacity and rate performance of the material are improved while ensuring the cycle performance thereof, and dissolution of transition metal can be effectively prevented.
Absstract of: WO2025079960A1
A secondary battery according to the present invention comprises an electrode assembly and a battery case, which includes a cup part for accommodating the electrode assembly and a terrace part extending from the cup part, wherein the terrace part includes a degassing sealing part with a curved surface.
Absstract of: WO2025079811A1
The present invention relates to a system for fire extinguishment in a battery test bed. To this end, the present invention may provide a system for fire extinguishment in a battery test bed, the system comprising: a submersion tank sealed by a bottom surface and a lateral portion such that the upper portion thereof is partially open, thereby containing a predetermined liquid; and a dropping device for dropping a battery placed over the submersion tank, wherein the dropping device comprises: a first mounting member installed over the submersion tank and having a first mounting area in which one side of the bottom portion of the battery is placed; a second mounting member that is installed over the submersion tank, is positioned to be spaced apart from the first mounting member by a predetermined distance, and has a second holding area in which the other side of the bottom portion of the battery is placed; and a battery dropping member installed in at least one of the first and second mounting areas to separate the battery from the first and second mounting members when the occurrence of a fire or the precursor phenomenon of a fire in the battery is detected, thereby dropping the battery into the submersion tank.
Absstract of: WO2025079959A1
The present invention relates to an electrode assembly, and an electrode assembly according to an aspect of the present invention includes: a first electrode including a first body part coated with a first electrode active material and a first tab part extending outward from an edge of the first body part; a second electrode including a second body part stacked on one surface of the first body part and coated with a second electrode active material and an uncoated part provided on an edge of the second body part and overlapping the edge of the first body part; and a separator interposed between the first electrode and the second electrode, wherein the first electrode may further include an extension part provided at the edge of the first body part and protruding to the outside of the uncoated part.
Absstract of: WO2025079939A1
Provided is a charge/discharge apparatus for a secondary battery, having improved internal airflow and layout so as to enable the efficient cooling of the inside of the charge/discharge apparatus. The charge/discharge apparatus of the present invention comprises: a mechanism unit for bringing a pin for charging/discharging into contact with battery cells; a power supply unit disposed adjacent to the mechanism unit and supplying power and controlling the charging/discharging; and an airflow circulation unit for continuously circulating air to the mechanism unit via the power supply unit. According to the present invention, air may be circulated using a duct directly connected to a factory air conditioning apparatus, and the inside of the charge/discharge apparatus may be more efficiently cooled, thereby enabling the reduction of a temperature deviation between the battery cells when the battery cells are being charged/discharged.
Absstract of: US2025123334A1
According to aspects of the disclosure, a battery diagnosis apparatus includes: a sensor configured to generate first open circuit voltage (OCV) data by measuring an OCV from a diagnosis target battery; and a controller configured to: obtain first SOC data regarding a state of charge (SOC) of the diagnosis target battery based on the first OCV data, derive second SOC data for estimating the SOC of the diagnosis target battery based on the first SOC data, obtain second OCV data of the diagnosis target battery based on the second SOC data, and diagnose a state of the diagnose target battery based on the first OCV data and the second OCV data.
Absstract of: US2025123337A1
According to an aspect of the present invention, there is provided a battery management apparatus receives a plurality of resting voltages collected in a resting period after charging or discharging is completed from a plurality of battery cells, and is configured to calculate a plurality of voltage deviations based on a difference between a representative value of the plurality of resting voltages and each resting voltage, calculate a plurality of rates of change over time of the plurality of voltage deviations, and diagnose a state of at least one of the plurality of battery cells.
Absstract of: US2025123335A1
A charging system includes a charger for a storage battery including a lithium-ion battery, and a battery-side device that monitors a battery state including a lithium precipitation amount in the lithium-ion battery. The charger includes an information acquisition unit that acquires battery information including the battery state from the battery-side device, a charging determination unit that determines whether charging of the storage battery is possible based on the battery information, and a charging control unit that charges the storage battery based on a determination result of the charging determination unit.
Absstract of: US2025123336A1
A battery monitoring system includes battery measuring devices and a battery monitoring device. Each of the battery measuring devices detects voltage information on a corresponding battery. The battery monitoring device is configured to: acquire the voltage information from each of the battery measuring devices by using wireless communication; and acquire current information on current flowing through the corresponding battery from an electric-current sensor. The battery monitoring device includes a control unit and a wireless communication unit. The wireless communication unit executes wireless communication with the battery measuring devices with a predetermined period. The control unit is configured to: cause the wireless communication unit to output a voltage measuring instruction; and based on a timing at which the wireless communication unit transmits the voltage measuring instruction to the battery measuring device, acquire the current information during a time interval in which the battery measuring device acquires voltage information.
Absstract of: US2025123333A1
A method can include receiving battery sensor measurements, determining a state of the battery (e.g., SoH, SoC, SoE, SoP, etc. or information correlated therewith such as internal resistance, open circuit voltage, etc.), estimating an aging profile or degradation of the battery for one or more operating conditions, and determining operating conditions for the battery based on the estimated degradation.
Absstract of: WO2025076720A1
A lithium manganese iron phosphate positive electrode material, a preparation method therefor, and a lithium ion battery. The lithium manganese iron phosphate positive electrode material prepared by means of the preparation method is beneficial to well balancing and taking into account all of the initial discharge capacity, average voltage, compaction density, etc., so as to obtain better comprehensive performance. The preparation method comprises the following steps: S1, using precursor raw materials to prepare a mixed precursor, wherein the precursor raw materials comprise a lithium source, an iron source, a manganese source, a phosphorus source, and a carbon source; and S2, sintering the mixed precursor to obtain a lithium manganese iron phosphate positive electrode material, wherein the sintering comprises first sintering and second sintering which are sequentially performed, the temperature of the first sintering is 800°C-900°C, the temperature of the second sintering is 600°C-800°C, and the temperature of the first sintering is higher than the temperature of the second sintering.
Absstract of: WO2025076726A1
A lithium nickel manganese oxide positive electrode material, and a preparation method therefor and a use thereof. The lithium nickel manganese oxide positive electrode material comprises an inner core and an anion and cation co-coating layer arranged on the surface of the inner core, and the phase of the lithium nickel manganese oxide positive electrode material comprises a spinel phase and a layered phase. The lithium nickel manganese oxide positive electrode material comprises a spinel phase and a layered phase, and the spinel phase and the layered phase have good compatibility, so that a diffusion channel of Li is increased, good rate capability is achieved, and high capacity is maintained.
Absstract of: WO2025076734A1
A short-process regeneration method for a waste lithium cobalt oxide positive electrode material, comprising the following steps: (1) adding a waste lithium cobalt oxide positive electrode material into a mixed solution containing an inorganic acid and a reducing agent for leaching, and filtering to obtain a leachate; (2) adding alkali liquor into the leachate prepared in step (1) to precipitate aluminum and iron, filtering to obtain an aluminum-removed and iron-removed liquid, removing calcium and magnesium from the aluminum-removed and iron-removed liquid by using a chelating resin to obtain a calcium-removed and magnesium-removed liquid, and then extracting cobalt ions and lithium ions from the calcium-removed and magnesium-removed liquid by using a cobalt and lithium extractant to obtain a purified liquid containing cobalt and lithium; (3) performing spray pyrolysis on the purified liquid prepared in step (2) to obtain a lithium cobalt oxide; and (4) mixing the lithium cobalt oxide prepared in step (3) with a lithium source, and calcining to obtain a lithium cobalt oxide finished product.
Absstract of: WO2025077163A1
An electrode assembly (20), a battery cell (100), a battery (200), and an electrical device (1000). The electrode assembly (20) comprises a first electrode sheet (21), a second electrode sheet (22), a first separator (23) and a second separator (24), the first separator (23), the first electrode sheet (21), the second separator (24) and the second electrode sheet (22) being stacked in sequence and wound, to form an integrated body, and the polarities of the second electrode sheet (22) and the first electrode sheet (21) being opposite. A length end of the first electrode sheet (21) is fixedly connected to at least one of the first separator (23) and the second separator (24), and length ends of both the first separator (23) and the second separator (24) extend past the length end of the first electrode sheet (21), and are fixedly connected to each other.
Absstract of: WO2025077181A1
A lithium battery, comprising: a battery stack with a noise source, a loudspeaker, a microphone and a processor, wherein the loudspeaker and the microphone are arranged in the battery stack; the microphone is connected to a signal input end of the processor, and is used for acquiring a main noise signal of the noise source and sending the main noise signal to the processor; the processor is used for generating a noise-reduction analog signal on the basis of the main noise signal; and the loudspeaker is connected to a signal output end of the processor, and is used for outputting the noise-reduction analog signal.
Absstract of: WO2025077096A1
Provided are a positive electrode active material and a preparation method therefor, a positive electrode sheet, a battery, and an electric device. The positive electrode active material comprises Na4-aAbFe3-cBd(PO4)2-eDf(P2O7), wherein A comprises at least one of Li and K, B comprises a metal element, D comprises at least one of a halogen anion, a silicate ion, a sulfate ion, or a borate ion, -0.12≤a≤0.12, b≥0, 0≤c≤0.3, d≥0, f>0, and 0
Absstract of: WO2025077149A1
The present application discloses a lithium-rich manganese-based precursor, and a preparation method therefor and a use thereof. The lithium-rich manganese-based precursor is an element-doped nickel-cobalt-manganese hydroxide, and doping elements in the lithium-rich manganese-based precursor include zirconium (Zr) and tungsten (W). In the present application, co-doping of the nickel-cobalt-manganese hydroxide with Zr and W helps to improve the electrochemical properties of a material, especially the cycle performance and the initial coulombic efficiency.
Absstract of: WO2025079792A1
An embodiment provides an all-solid-state battery including a solid electrolyte layer, and a positive electrode layer and a negative electrode layer disposed with the solid electrolyte layer interposed therebetween, wherein the solid electrolyte layer includes a first solid electrolyte, the positive electrode layer or the negative electrode layer includes an electrode active material and a second solid electrolyte surrounding a part of the surface of the electrode active material with an average thickness of 1 nm to 10 nm, the electrode active material includes a positive electrode active material, the positive electrode active material includes a high cobalt-based positive electrode active material represented by chemical formula 1: LiCoxM1 yM2 1-x-yO2.
Absstract of: WO2025080021A1
The present invention relates to a compressing device, capable of real-time monitoring of compressing force, for formation of a secondary battery, and a compressing method thereof, wherein compression for formation can be applied while a contact area between a compression plate and a battery is monitored in real time, in order to solve the issue of lithium precipitation caused by a change in compression uniformity due to the unidentified contact area of the battery during a formation process, which is one of the manufacturing processes of a secondary battery, although uniform compression needs to be applied when the battery is compressed.
Nº publicación: WO2025079957A1 17/04/2025
Applicant:
LG ENERGY SOLUTION LTD [KR]
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Absstract of: WO2025079957A1
The present invention relates to a positive electrode for a lithium secondary battery, a production method therefor, and a lithium secondary battery comprising same.
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