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1380
resultados
Última actualización
14/03/2026 [07:18:00]
Resultados 350 a 375 de 1380
Resumen de: CN121039177A
The present invention relates to a composition in powder form comprising a polymer P1 comprising monomeric units derived from a vinylidene fluoride monomer M0 or monomeric units derived from a monomer M2 of formula R1R2C = C (R3) C (O) R wherein the substituents R1, R2 and R3 are selected independently of each other from H and C1-C5 alkyl; r is selected from-NHC (CH3) 2CH2C (O) CH3 or-OR ', wherein R' is selected from H and C1-C18 alkyl optionally substituted by one or more-OH groups or a five or six membered heterocycle comprising at least one nitrogen atom in its ring chain; or a mixture of M0 or M2 monomeric units; characterised in that the polymer P1 has a particle size distribution Dv99 of less than 89 mu m and a particle size distribution Dv10 of greater than 2.0 mu m.
Resumen de: MX2025013093A
Blended cathode active materials including an iron phosphate based active material and a nickel oxide based active material, and methods of manufacture, are described. The blended cathode active materials enable energy storage devices with improved performances, including but not limited to improved capacity retention and cycling lifetime.
Resumen de: AU2024275183A1
The present invention relates to a process for the concentration of lithium in metallurgical fumes wherein a metallurgical charge is smelted, thus obtaining a molten bath comprising a slag phase and optionally an alloy phase and fuming the lithium from the molten slag, by addition of a halogen intermediate, wherein the halogen intermediate is produced from the Li halide fumed from the molten slag. The halide is thus efficiently re-used in the process, while the lithium is recovered and isolated.
Resumen de: EP4708386A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, the positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion provided on the lithium composite transition metal oxide, wherein the coating portion comprises a first coating portion and a second coating portion, wherein the first coating portion is in a form of a discontinuously formed island, and the second coating portion is in a form of a continuously formed coating layer, wherein the first coating portion comprises boron (B) and optionally comprises at least one coating element selected from the group consisting of Co, Al, Ba, Ce, Cr, F, Mg, V, Ti, Fe, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, P, S, Sr, Ta, La, and Hf, the second coating portion comprises a compound having a composition represented by Formula 1 or 2 set forth in the specification, and an amount of boron (B) among total metals excluding lithium in the positive electrode active material is 0.1 mol% to 1.25 mol%, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Resumen de: EP4708374A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, the positive electrode active material including: a first lithium composite transition metal oxide in a form of a single particle; and optionally a second lithium composite transition metal oxide in a form of a single particle, wherein the first lithium composite transition metal oxide in the form of a single particle includes 30 or less disk-type primary particles, wherein each of the disk-type primary particles is a primary particle observed from a scanning electron microscope (SEM) image of a surface or cross section of the positive electrode active material, wherein, when an imaginary tangent line with the most contact points is drawn to each of two boundary lines of the primary particle present within an angle of 45° or less based on a long diameter direction and one imaginary line crossing the two tangent lines is drawn, interior angles of same side are at least 150° and at most 210°, and an aspect ratio of (major axis/minor axis) is 1.5 or more, wherein the positive electrode active material includes the first lithium composite transition metal oxide in an amount of 20 vol% to 100 vol% based on a total volume of the positive electrode active material, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Resumen de: EP4708384A1
The present invention relates to a method of preparing a positive electrode slurry composition, which includes steps of (S1) adding a positive electrode active material, a conductive agent, a binder, and a non-aqueous solvent to a mixer and mixing to prepare a mixture having a solid content of greater than 60 wt% and a temperature of -20°C to 45°C; (S2) cooling the mixture to -30°C to 15°C to prepare a positive electrode slurry composition precursor; and (S3) maintaining a temperature of the positive electrode slurry composition precursor to prepare a positive electrode slurry composition having a V<sub>72</sub> of 0% to 50%, wherein V<sub>n</sub> is a viscosity increase rate when the temperature of the positive electrode slurry composition precursor is maintained for n hours, and the viscosity increase rate is represented by Equation 1 described in the present specification, and a method of preparing a positive electrode.
Resumen de: CN121038952A
A thermal barrier article includes a multilayer material including a first fabric layer disposed on a first side of a ceramic layer and a second fabric layer disposed on an opposite side of the ceramic layer. The thermal barrier article may also include an alternating arrangement of a plurality of fabric layers and ceramic layers. In each of these aspects, the thermal barrier article has sufficient flexural and thermal characteristics to withstand a flexural adjustment test and a pyrotechnic explosion test that has a temperature of at least 1200 DEG C and expels particles of non-solid mass.
Resumen de: CN121039819A
The invention relates to a method for preparing a positive electrode undercoat layer, which combines two polyacrylic acid binders of different molecular weights and carbon particles. The invention also relates to a composition suitable for use in said method and to a positive electrode useful in the manufacture of a rechargeable battery cell.
Resumen de: WO2024231297A1
The present invention pertains to a binder for Li-ion battery positive electrode, to a method of preparation of said electrode and to its use in a Li-ion battery. The invention also relates to the Li-ion batteries manufactured by incorporating said electrode.
Resumen de: WO2024227929A1
The present invention relates to an electrode for use in a rechargeable alkaline battery. The electrode comprises a current collector, an active material which is loaded on the current collector, and an anion-exchange membrane, wherein the active material comprises MnO2 or Zn and the anion-exchange membrane comprises a crosslinked benzimidazole polymer. The present invention further relates to a rechargeable alkaline battery comprising the electrode as a positive electrode, when the active material comprises MnO2, or as a negative electrode, when the active material comprises Zn.
Resumen de: CN121100108A
The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery, which is composed of Li Lix (Ni1-y-z-wCoyMnzMw) 1-x O2 (M is one or more elements other than Li, Ni, Co, Mn, and O; 0.1 < = x < = 0.15, 0lt; y < = 0.4, 0 < = z < = 0.4; and 0 < = w < = 0.1), and when a DTG curve of a sample charged using lithium as a counter electrode is divided into a plurality of peaks, has a first peak and a second peak in a temperature range of 150 DEG C to 350 DEG C, wherein a top portion of the first peak shows a maximum DTG value and a top portion of the second peak shows a maximum DTG value in peaks appearing at a peak top portion at a temperature that differs from a temperature appearing at the top portion of the first peak by at least 20 DEG C, and the DTG value at the top portion of the first peak is 1 to 9 times the DTG value at the top portion of the second peak.
Resumen de: EP4708455A1
Embodiments of the present disclosure provide a battery pack, an electrical apparatus, and an energy storage apparatus, which belong to the field of battery technologies. The battery pack includes a box, a battery cell, a thermal management component, a flange, a first connecting pipe, and a second connecting pipe. The box has an accommodating cavity and a mounting hole in communication with the accommodating cavity. The battery cell is located in the accommodating cavity. The thermal management component is located in the accommodating cavity to cool the battery cell. The mounting hole is used to avoid a temperature-regulating fluid entering and exiting the thermal management component. The flange covers the mounting hole. The flange is mounted on the box. The first connecting pipe is respectively connected to the flange and the thermal management component to provide the temperature-regulating fluid. The second connecting pipe is respectively connected to the flange and the thermal management component to discharge the temperature-regulating fluid. The flange spans the first connecting pipe and the second connecting pipe.
Resumen de: EP4707053A1
Embodiments of this disclosure provide an energy storage device and a temperature adjustment method for energy storage device, relating to the field of battery technologies. A battery pack installed inside a cabinet is electrically connected to an energy storage interface. A charging current converter is electrically connected to the battery pack. A charging connector is electrically connected to the charging current converter. A cooling system is configured to exchange heat with the charging current converter and the charging connector. A first heat dissipation apparatus is disposed in the cooling system. A temperature adjustment system is configured to exchange heat with the battery pack, and the cooling system and the temperature adjustment system are thermally separated. A second heat dissipation apparatus is disposed in the temperature adjustment system. A controller is configured to keep the cooling system off and turn on the temperature adjustment system in a first operating mode. The controller is configured to turn on the cooling system and the temperature adjustment system in a second operating mode. The controller is configured to keep the cooling system off and turn on the temperature adjustment system in a dormant mode.
Resumen de: EP4708552A1
A battery module of the present invention includes: a stack provided as one or more battery cells; a case in which the stack is accommodated; and a PCB assembly provided inside the case and configured to electrically connect a first busbar provided at one side of the stack to a second busbar provided at the other side of the stack or cut off electricity so as not to flow when current exceeding a preset value flows, wherein the PCB assembly includes: a first connection cable connected to the first busbar; a second connection cable connected to the second busbar; and a PCB provided with a circuit configured to electrically connect the first connection cable to the second connection cable and a fuse configured to cut off the electricity so as not to flow through the circuit when the current exceeding the preset value flows through the circuit.
Resumen de: EP4708395A1
The present application relates to a negative electrode active material, a method for manufacturing a negative electrode active material, a negative electrode composition, a negative electrode for a lithium secondary battery including the same, and a lithium secondary battery including a negative electrode.
Resumen de: EP4708383A1
The present invention relates to a method of preparing a positive electrode slurry composition, which includes steps of (S1) mixing a positive electrode active material, a conductive agent, and a binder in a non-aqueous solvent to prepare a mixture having a solid content of greater than 60 wt%; (S2) cooling the mixture to -30°C to 15°C to prepare a positive electrode slurry composition precursor; and (S3) maintaining a temperature of the positive electrode slurry composition precursor to prepare a positive electrode slurry composition having a V<sub>72</sub> of 0% to 50%, wherein V<sub>n</sub> is a viscosity increase rate when the temperature of the positive electrode slurry composition precursor is maintained for n hours, and the viscosity increase rate is represented by Equation 1, and a method of preparing a positive electrode.
Resumen de: EP4708438A1
A monomer for an electrolyte according to embodiments of the present disclosure may include a first monomer represented by Formula 1 and a second monomer represented by Formula 2. A lithium secondary battery according to embodiments of the present disclosure may include a cathode, an anode, and an electrolyte layer, wherein the electrolyte layer may include a polymer derived from a compound represented by Formula 1.
Resumen de: EP4708432A1
The present disclosure relates to a porous organic-inorganic composite electrolyte membrane, an organic-inorganic composite electrolyte comprising the porous organic-inorganic composite electrolyte membrane, a secondary battery comprising the porous organic-inorganic composite electrolyte membrane, and a method for manufacturing the porous organic-inorganic composite electrolyte membrane, the porous organic-inorganic composite electrolyte membrane comprising an oxide-based inorganic electrolyte and a fluorine-based polymer matrix, wherein the oxide-based inorganic electrolyte is contained in the fluorine-based polymer matrix, and, in the X-ray photoelectron spectroscopy (XPS) analysis result of the surface, the ratio (S<sub>CO3</sub>/S<sub>Zr</sub>) of the area (SCO<sub>3</sub>) of a peak corresponding to CO3 in the C1s spectrum to the area (S<sub>Zr</sub>) of a peak corresponding to Zr3d<sub>5/2</sub> in the Zr3d spectrum is greater than 0 and less than or equal to 5.0.
Resumen de: EP4708431A2
An electrode structure for a lithium secondary battery according to exemplary embodiments may comprise: a negative electrode; and a composite electrolyte layer formed on the negative electrode and including an oxide-based electrolyte and a polymer electrolyte. The oxide-based electrolyte may include a sintered body, and the volume of the oxide-based electrolyte included in the composite electrolyte layer may be more than that of the polymer electrolyte included in the composite electrolyte layer. Accordingly, a lithium secondary battery having improved capacity characteristics and lifespan characteristics can be provided.
Resumen de: EP4706479A1
The present disclosure relates to a cleaner including a battery, more particularly, to a battery including a protrusion protruding toward one side from the battery body; and a button configured to selectively fix the battery body to the battery receiving part, and is capable of allowing easy operation of the button to release the handle, and allowing the button to be formed compact without protruding outward, and a cleaner including the same.
Resumen de: CN121079268A
The invention relates to a solid material obtainable by melt quenching a mixture of lithium sulfide, boron sulfide, boron oxide and a lithium halide to form a glassy solid suitable for use as a lithium ion conductive electrolyte. These sulfide-based lithium ion conductive solid electrolytes exhibit high ionic conductivity.
Resumen de: EP4708372A1
Example embodiments of the present technology provide a battery cell formation device. The apparatus includes: a driving part including a driving plate and driving rods configured to move the driving plate in a first direction; and a support part including a support plate and elastic elements connected to the support plate, in which the support plate is spaced apart from the driving plate in the first direction and includes steps protruding in the first direction.
Resumen de: EP4708418A1
An apparatus and a method for folding sides of a pouch-type battery and a die for the same are disclosed. The apparatus for folding sides of a pouch-type battery includes a die including a folding formation space including an inlet through which a side of a pouch-type battery enters, an outlet through which the side of the pouch-type battery exits, and a side opening formed on one side of the die to guide the side of the pouch-type battery to pass therethrough, and a transfer unit that transfers the pouch-type battery along a longitudinal direction of the die. A space between the inlet and the outlet of the folding formation space is formed so that the side of the pouch-shaped battery having entered the inlet is gradually folded while moving and finally the outlet has a final folding shape.
Resumen de: EP4707837A1
Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rest periods of the second electric stimulation applied in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode loading amount.
Nº publicación: EP4707833A1 11/03/2026
Solicitante:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Resumen de: EP4707833A1
A battery management apparatus according to an embodiment disclosed herein includes a voltage measurement unit configured to measure a voltage of each of a plurality of batteries and a controller configured to calculate a first deviation, which is a deviation between a long moving average and a short moving average of a battery voltage for each of the plurality of batteries, calculate a second deviation, which is a deviation between a long moving average and a short moving average of an average voltage of the plurality of battery cells, and calculate a first diagnosis deviation between the first deviation and the second deviation for each of the plurality of battery cells, calculate an accumulative deviation by accumulating the first diagnosis deviation when the first diagnosis deviation of at least one of the plurality of batteries exceeds a threshold value, and diagnose at least one of the plurality of batteries as an abnormal battery, based on the accumulative deviation.
BOPI
Sede Electrónica
