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1452
resultados
Última actualización
04/05/2025 [07:15:00]
Resultados 525 a 550 de 1452
Resumen de: WO2025089889A1
Provided are a battery cell stack assembly and a battery pack comprising same. The battery cell stack assembly according to one aspect of the present specification comprises: cell stacks in which a plurality of battery cells are vertically stacked so that the leads are disposed on at least one of the sides, one side or the other side, in a horizontal first direction; and a cooling plate disposed between the plurality of battery cells, wherein the cell stacks, multiply provided, are arrayed in a horizontal second direction intersecting the horizontal first direction, and the cooling plate extends in the horizontal second direction so as to pass over the plurality of cell stacks arranged in the horizontal second direction.
Resumen de: WO2025089760A1
The present invention relates to an anode and a manufacturing method therefor. The anode comprises a first anode active layer and a second anode active layer on an anode current collector. Here, the degree of alignment (O.I) of each anode active layer of the anode satisfies a predetermined range, and thus high adhesion of the anode active layer to the anode current collector is implemented, thereby providing excellent lifespan characteristics. In addition, a lithium secondary battery comprising same has excellent output characteristics, and enables charging in a short time even at a 1C-rate.
Resumen de: WO2025089898A1
The present invention relates to a silicon-based negative electrode satisfying both high energy density and long lifespan, and a lithium secondary battery comprising same. Conventional lithium-ion batteries face challenges in improving energy density due to the capacity limitations of graphite negative electrode. To address this issue, high-capacity anode materials such as Si and SiOx have been researched. However, these materials suffer from electrode damage and accelerated electrolyte consumption caused by volume expansion of silicon during charge and discharge cycles. In order to overcome these problems, a lithium-ion battery anode was fabricated by combining silicon oxide with a silicon-carbon composite in the present invention. While silicon oxide offers high volumetric energy density, its cycle life is relatively short. Conversely, silicon-carbon composites mitigate volume expansion to extend cycle life but exhibit lower energy density. By adjusting the mixing ratio of these two materials, a negative electrode for a lithium secondary battery that achieves both high capacity and long lifespan is provided.
Resumen de: WO2025089929A1
A battery management apparatus according to embodiments and experimental examples of the present invention may comprise: a command to detect the occurrence of an abnormality in a battery system; a command to detect a specific battery group in which an abnormality has occurred according to whether balancing is performed if an abnormality has occurred in the battery system; and a command to detect a specific battery in which an abnormality has occurred on the basis of the temperatures of a plurality of batteries in the specific battery group.
Resumen de: WO2025089677A1
The present embodiments relate to an anode active material for a lithium secondary battery, a method for manufacturing same, and a lithium secondary battery comprising same. The anode active material of the present invention comprises coarse carbon particles and fine carbon particles and satisfies expression 1 below.
Resumen de: WO2025089802A1
The present invention relates to an anode active material for a lithium secondary battery, the material comprising silicon particles which are in the form of single particles and have a polycrystalline structure, having an average HS circularity of 0.875 or higher, and satisfying the following Equation 1. Equation 1 Dv1 ≥ 2 μm, where Dv1 is a particle diameter corresponding to 1% of the cumulative volume in a particle diameter distribution curve of silicon particles.
Resumen de: WO2025089699A1
The present invention provides a polyimide film comprising: a polyimide comprising, as repeating units, an anhydride monomer and a diamine monomer; and nanoparticles having an average particle size of 100 to 500 nm, wherein the polyimide film has a breakdown voltage (BDV) of 350 kV/mm or more and a surface roughness (Ra) value of 0.01 nm or more.
Resumen de: WO2025089799A1
The present invention relates to an anode active material for a lithium secondary battery, the material having silicon particles which satisfy the following Equation 1. Equation 1 0.70 ≤ Dv50 - Dv10 / Dv90 - Dv50 ≤ 0.80, where Dv50, Dv10, and Dv90 are particle diameters corresponding to 50%, 10%, and 90%, respectively, of the cumulative volume in a particle diameter distribution curve of silicon particles.
Resumen de: WO2025089819A1
The present invention relates to a copolymer and a viscosity reducer comprising same and, more specifically, to a copolymer, and a viscosity reducer, a cathode slurry composition, a cathode, and a secondary battery each comprising same, wherein the copolymer enables the preparation of a cathode slurry composition with low viscosity and excellent dispersibility and the manufacture of a cathode having superior binding strength between a cathode active material and a current collector.
Resumen de: WO2025089794A1
The present invention relates to an all-solid-state battery comprising a positive electrode, a solid electrolyte layer, a coating layer, and a negative electrode current collector, wherein the coating layer comprises amorphous carbon, the amorphous carbon comprises nitrogen-containing amorphous carbon, and the nitrogen content (atomic %) contained in the coating layer is in the range of 0.5% to 7%. The all-solid-state battery according to the present invention may have an excellent capacity retention rate according to cycles during high-rate charging and discharging.
Resumen de: WO2025089678A1
The present invention provides: a single-walled carbon nanotube having a weight change of 5% or less at 40 °C to 550 °C when the temperature is increased at 10 °C/min using a thermogravimetric analyzer, wherein the content of the sulfur element is less than 0.1 wt% on the basis of the total weight of elements measured by using an elemental analyzer; a single-walled carbon nanotube dispersion; and an electrode and a secondary battery comprising same.
Resumen de: WO2025089737A1
The present invention relates to a method for manufacturing an electrode-integrated separator for a lithium secondary battery, the method comprising the steps of: forming a binder coating layer by applying, onto an electrode substrate, a binder solution containing a first polymer binder; and forming a porous layer by applying, onto the binder coating layer, a slurry containing a second polymer binder and inorganic fine particles, wherein the binder solution has a viscosity of 1000-9500 cP at 25 °C.
Resumen de: WO2025089744A1
A battery pack according to the present invention comprises: a plurality of secondary batteries which include battery cases having electrode leads and lead sealing portions corresponding to the electrode leads, and which face each other such that the lead sealing portions are arranged in one direction; cooling plates positioned between the plurality of secondary batteries; and a pack case having an accommodation space for accommodating the plurality of secondary batteries, the pack case having drains that are adjacent to the lead sealing portions and are recessed in the direction of moving farther away from the lead sealing portions.
Resumen de: WO2025089749A1
According to exemplary embodiments, a battery cell manufacturing device is provided. The battery cell manufacturing device may comprise: an image matching device, which includes a first image acquisition unit for acquiring first images of a first electrode assembly that has a tab stack of a first electrode and has, on one end portion thereof, a first electrode lead welded to the tab stack, a second image acquisition unit for acquiring a second image of a second electrode assembly that is determined to be usable through re-inspection of the first electrode assembly that is determined to be defective through inspection based on the first images, and an image matching unit, which compares the second image and the plurality of first images so as to extract a first image matched with the second image; and an ID allocation device for allocating, as an ID of the second electrode assembly, an ID of the first electrode assembly of the first image matched to the second image. In addition, a battery cell system comprising the battery cell manufacturing device is provided. The present invention also provides a battery cell manufacturing method using image matching.
Resumen de: WO2025089770A1
The present invention relates to a method for recovering lithium and, more specifically, to a method for recovering lithium, the method comprising the steps of: (i) heat-treating waste positive electrodes having a positive electrode active material layer applied on a current collector, the positive electrode active material layer containing a positive electrode material having an olivine structure, a binder, and carbon, or a positive electrode active material layer powder obtained by crushing the waste positive electrodes, at 220-280°C to recover the positive electrode material having an olivine structure as a powder; (ii) dissolving the recovered positive electrode material powder having an olivine structure in an aqueous acetic acid solution to prepare a positive electrode material solution; (iii) adding an aqueous hydrogen peroxide (H2O2) solution to the positive electrode material solution to obtain a lithium-dissolved leachate and leach residue; (iv) separating the leachate and the leach residue; and (v) concentrating the leachate, wherein the aqueous acetic acid solution in step (ii) contains 0.8-1.2 moles of acetic acid per 1 mole of positive electrode active material in the positive electrode material powder, and the aqueous hydrogen peroxide solution in step (iii) contains 0.4-0.6 moles of hydrogen peroxide per 1 mole of positive electrode active material in the positive electrode material powder. According to the present invention, a positive electrode material pow
Resumen de: WO2025089838A1
The present invention relates to a pouch film comprising a sealant layer, a barrier layer, a second outer layer, and a first outer layer which are sequentially laminated, wherein the second outer layer comprises a nylon-based resin, the thickness of the second outer layer is 35-60 μm inclusive, and the tensile strength ratio of the barrier layer and the second outer layer measured according to the measuring condition below is 0.9-1.2 inclusive. Measuring condition The barrier layer and the second outer layer of the pouch film are peeled so as to make respective test pieces having a width of 15 mm, and then, at room temperature, the test pieces are fixed between two jigs of a tensile tester (UTM) (initial jig gap 50 mm), and then the stroke (mm) and strength (N) of the test pieces are measured while pulling each test piece in the MD direction at a measuring speed of 50 mm/min. The x-axis in a graph derived from the measured values is stroke (mm), and the y-axis is tensile strength (N), and the tensile strength of the barrier layer and the second outer layer when the stroke is 5 mm is measured.
Resumen de: WO2025089866A1
The present invention relates to a composition for coating an uncoated portion of a battery, a method for coating an uncoated portion of a battery by using the composition for coating an uncoated portion of a battery, and an electrode comprising the composition for coating an uncoated portion of a battery. More particularly, the present invention relates to: a composition for coating an uncoated portion of a battery, having excellent heat resistance, excellent electrolyte stability, and excellent adhesive strength between an uncoated portion coating layer and an uncoated portion, thus enabling a stable coating layer to be formed; a method for coating an uncoated portion of a battery; and an electrode having an uncoated portion that has been coated.
Resumen de: WO2025089888A1
Provided is a battery pack comprising: a plurality of cell units, each comprising one or more battery cells: one or more spacers disposed between the plurality of cell units and each provided with one or more venting channels through which gas discharged from one or more of the battery cells can flow; and one or more cooling members arranged to face at least one cell unit from among the plurality of cell units, wherein the plurality of cell units and one or more cooling members are arranged along a first direction, and the plurality of cell units and one or more of the spacers are arranged along a second direction intersecting the first direction.
Resumen de: WO2025089590A1
The present invention relates to a cathode active material for a lithium secondary battery, the material comprising a discrete-particle-type lithium metal oxide, which contains 50 to 70 mol% of nickel on the basis of the total number of moles of metals excluding lithium, and satisfying equations 1 and 2. Equation 1 3.0 μm ≤ Dv50 ≤ 5.0 μm Equation 2 Dv50 - Dn50 ≤ 2.0 μm In equations 1 and 2, Dv50 is a volume-based average particle diameter of the lithium metal oxide, and Dn50 is a number-based average particle diameter of the lithium metal oxide.
Resumen de: WO2025089453A1
The present document relates to an energy storage system (ESS) including multi-level battery management systems. The ESS comprises: a plurality of first-level battery management systems (BMSs) for monitoring voltage state information and temperature state information about each of a plurality of battery groups; a second-level BMS configured to generate report information on the basis of the voltage state information received from the plurality of first-level BMSs and perform an emergency response control operation on the basis of the temperature state information; and a third-level BMS configured to determine whether to perform balancing on the basis of the report information received from the second-level BMS, and transmit a balancing command, dependent on the determination about whether to perform balancing, to the second-level BMS.
Resumen de: WO2025089596A1
Provided are a positive electrode and a lithium secondary battery, the positive electrode comprising a positive electrode current collector and a positive electrode active material layer, which is disposed on one or both surfaces of the positive electrode current collector and contains a positive electrode active material, a gamma sulfur-fibrous carbon-based material composite, and a sulfide-based solid electrolyte, wherein the positive electrode active material comprises Li2S, a Li2S composite, or a combination thereof, and the gamma sulfur-fibrous carbon-based material composite has a structure in which monoclinic gamma phase sulfur (S) is disposed on a fibrous carbon-based material.
Resumen de: WO2025089613A1
A battery module according to one embodiment of the present invention comprises: a battery cell stack in which a plurality of battery cells are stacked; a module frame for accommodating the battery cell stack; and a phase change material layer located between the battery cell stack and the module frame. The phase change material layer comprises a phase change material and has a mesh structure. Venting holes are formed in the module frame.
Resumen de: WO2025089622A1
A battery diagnosis apparatus according to an embodiment disclosed in the present document may comprise: a slave BMS for generating unit state information by measuring the state of a battery unit; a management unit for generating pack state information by measuring the state of a battery pack, and comprising a control unit for controlling an operation of a relay related to power supply of the battery pack on the basis of at least one of the unit state information and the pack state information; and a master BMS for receiving the unit state information and the pack state information from the management unit, and monitoring battery cells included in at least one of the battery unit and the battery pack on the basis of at least one of the unit state information and the pack state information.
Resumen de: WO2025089624A1
The positive electrode slurry of the present invention is a positive electrode slurry for manufacturing a positive electrode for a lithium secondary battery. The positive electrode slurry comprises: a positive electrode active material; a conductive material; a binder; an aliphatic organic acid having 5 or less carbon atoms; and a solvent. The positive electrode slurry contains at least 0.02 parts by weight and less than 0.1 parts by weight of the aliphatic organic acid on the basis of 100 parts by weight of the total solid content of the positive electrode active material, the conductive material, the binder, and the aliphatic organic acid. The positive electrode slurry has a viscosity of 5,000-27,500 cP at room temperature.
Nº publicación: WO2025089638A1 01/05/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
\uC0BC\uC131\uC5D0\uC2A4\uB514\uC544\uC774\uC8FC\uC2DD\uD68C\uC0AC
Resumen de: WO2025089638A1
A cathode mixture containing a lithium sulfide composite and a solid electrolyte, a cathode comprising same, an all-solid-state secondary battery comprising the cathode, and a manufacturing method therefor, are presented, wherein in an X-ray diffraction analysis spectrum for the cathode mixture, a first peak appearing at a diffraction angle 2θ of 26 to 27.5 degrees has a first intensity (IA), a second peak appearing at a diffraction angle 2θ of 30.02 to 30.06 degrees has a second intensity (IB), and an intensity ratio (IB/IA) of the first intensity to the second intensity satisfies 1
BOPI
Sede Electrónica
