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1190
results.
Updated on
25/10/2026 [07:33:00]
Results 400 to 425 of 1190
Absstract of: EP4826783A1
The purpose of one aspect of the present invention is to provide an anode active material. The anode active material includes: silicon-based particles; and a coating layer disposed on the surfaces of the silicon-based particles, wherein an average particle diameter (D50) of the silicon-based particles is 1.0-2.8 µm, the coating layer includes a polymer, and in the Raman spectrum of the anode active material, a full width at half maximum of a peak positioned in a 480-540 cm-1 region may be greater than 23 cm-1.
Absstract of: EP4825227A1
The power supply unit (110) of the inhalation device (100) comprises: a power source unit (111), and a control unit (116) configured to control at least one of charging and discharging of the power supply unit (111). The power source unit (111) is replaceably and removably mounted in the power supply unit (110). The control unit (116) is capable of performing an identification process to identify the type of power source unit (111) mounted in the power supply unit (110).
Absstract of: EP4826403A1
0001 This document relates to a battery diagnosis device including an interface configured to acquire present electric current information and present battery temperature information corresponding to a battery unit and a processor configured to compare previous battery temperature information and the present battery temperature information that correspond to the battery unit when the present electric current information is less than a threshold value, and diagnose an abnormality in the battery unit based on the comparison result.
Absstract of: WO2025125538A1
The invention provides a process for preparing a crystallized metal sulphate comprising nickel and/or cobalt, said process comprising the steps of: i. forming an aqueous metal sulphate solution by reacting sulphuric acid with a raw material feed comprising nickel and/or cobalt in water in presence of a reducing agent; ii. crystallizing said metal sulphate from said aqueous metal sulphate solution to form a crystallized metal sulphate in a mother liquor, the mother liquor comprising an uncrystallized metal sulphate and optionally one or more metal impurities; iii. separating said crystallized metal sulphate from said mother liquor comprising an uncrystallized metal sulphate and optionally one or more metal impurities; iv. reacting at least a portion of said uncrystallized metal sulphate in said mother liquor with a sulphidizing agent in an aqueous medium, thereby obtaining a slurry consisting of a solid phase comprising a metal sulphide precipitate and an aqueous phase comprising one or more impurities; and v. separating said solid phase comprising a metal sulphide precipitate and said aqueous phase comprising one or more impurities and sulphuric acid.
Absstract of: EP4825997A1
The method for recycling valuable metals according to the present invention comprises: preparing Ni-Co-Mn alloy particles having a compound including lithium and aluminum positioned on a surface thereof; primarily acid-leaching the alloy particles to selectively remove the compound including lithium and aluminum positioned on the surface of the alloy particles; and obtaining valuable-metal recovered alloy particles from which the compound including lithium and aluminum has been removed.
Absstract of: EP4826802A1
The present disclosure relates to a polyimide binder for a secondary battery negative electrode material that may improve charge-discharge efficiency and increase silicon content.
Absstract of: WO2025123086A1
The present disclosure provides a composite electrode material comprising submicrometer particles of an oxocarbon salt (eg a monocyclic oxocarbon alkali metal salt having a formula of Mm(CO)n (wherein M = Li, Na or K; 2 ≤ m ≤6; n= 4, 5 or 6), and a functionalised carbon-based material (eg graphene oxide). The composite electrode material may be suitable for use in an electrochemical device under ultra-low temperature conditions.
Absstract of: EP4826797A1
0001 The disclosure provides a tetrafluoroethylene-based polymer composition for a binder for an electrochemical device, capable of reducing the resistance of an electrochemical device and yielding a mixture sheet with excellent adhesion to a substrate, and a binder for an electrochemical device, an electrode mixture, an electrode, and a secondary battery each containing the composition. Provided is a tetrafluoroethylene-based polymer composition for use in a binder for an electrochemical device, containing a tetrafluoroethylene-based polymer and a macromolecular compound containing an ionic group, the ionic group being contained in an amount of 0.020 meq/g or more based on the tetrafluoroethylene-based polymer composition.
Absstract of: WO2025128430A1
A composite particle comprised of interspersed spinel and disordered rocksalt domains therein may be made by removing lithium from a disordered rocksalt to form a lithium deficient disordered rocksalt and heating the lithium deficient disordered rocksalt for a time and temperature to form the composite particle.
Absstract of: EP4826905A1
0001 Disclosed is a battery module. The battery module includes a frame providing a space therein; a battery cell located inside the frame and including an accommodation portion configured to accommodate an electrode assembly and an electrode lead configured to protrude from the accommodation portion; a bus bar frame assembly located inside the frame and electrically connected to the battery cell; and a fire extinguishing pad located between the bus bar frame assembly and the accommodation portion.
Absstract of: EP4826826A1
0001 The present disclosure provides a secondary battery and an electric apparatus. The secondary battery includes a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte. A conductivity of the electrolyte is 14 mS/cm to 22 mS/cm, and the electrolyte includes a first additive. The first additive includes at least one of compounds represented by Formula I and Formula II, in Formula I, R<1> is selected from H, a fluorine atom, a fluorine-substituted or unsubstituted C1-C12 alkyl group, and a fluorine-substituted or unsubstituted C2-C10 alkenyl group; and in Formula II, R<2>, R<3>, R<4>, and R<5> are each independently selected from a hydrogen atom, a fluorine atom, a fluorine-substituted or unsubstituted C1-C6 alkyl group, a fluorine-substituted or unsubstituted C1-C6 alkoxy group, a C2-C6 alkenyl group, or a C2-C6 alkynyl group, and R<2>, R<3>, R<4>, and R<5> are not all hydrogen atoms.
Absstract of: EP4826821A2
0001 The present invention relates to the technical field of batteries, and discloses a secondary battery and an electric device, the secondary battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte, wherein the positive electrode plate, the negative electrode plate, and the separator are laminated or wound to form a cell, the number of layers n of the cell satisfies: 50 ≤ n ≤ 80, and the thickness of the cell is 5-15 mm; the electrolyte comprises a solvent comprising a linear solvent having 5-6 carbon atoms, with the mass percentage of the linear solvent having 5-6 carbon atoms in the electrolyte being denoted as S3, where 5% ≤ S3 ≤ 70%; the positive electrode plate comprises a positive electrode current collector, and a positive electrode active layer coated on a surface of at least one side of the positive electrode current collector, the positive electrode active layer comprising a positive electrode active material; the positive electrode active material comprises a Ni element, with the mass percentage of the Ni element in the positive electrode active material being denoted as w, where 0.3 ≤ S3/w ≤ 1.5. The present invention can effectively inhibit the gas generation of battery and reduce the risk of thermal runaway by optimizing the combination of an electrolyte and a positive electrode active material in the lithium-ion battery.
Absstract of: EP4826872A1
The present application relates to the technical field of batteries, and provides a battery and an electric device. The battery comprises a case, a plurality of battery cell groups, thermal management components, and a protective element. The case is provided with a first wall in a first direction. The plurality of battery cell groups are accommodated in the case, the plurality of battery cell groups are arranged in a second direction, each cell group comprises at least one battery cell, and the second direction intersects with the first direction. In the second direction, each thermal management component is arranged between two adjacent battery cell groups, and the thermal management component is configured to exchange heat with the battery cells. The protective element is arranged between the first wall and the plurality of battery cell groups in the first direction, and the protective element is configured to transfer external force borne by the first wall to the battery cell groups so as to protect the thermal management components, thereby reducing the impact of collision force generated on the first wall on the thermal management components, reducing the risk of leakage and other failures of the thermal management components during use, improving the use reliability of the battery, and prolonging the service life of the battery.
Absstract of: EP4826791A1
0001 The present invention relates to a positive electrode active material for a lithium secondary battery, which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, wherein the lithium transition metal oxide has a molar ratio of lithium to the lithium transition metal oxide of 1.02 to 1.1 and a molar ratio of nickel to transition metal of 0.75 or more, and wherein the lithium transition metal oxide has a structure in which a lithium layer and a transition metal layer are alternately stacked, and anisotropic contraction and expansion during charging and discharging are suppressed as at least a part of lithium lattice sites in the lithium layer is substituted with the buffer metal element.
Absstract of: WO2025128346A1
A modular battery energy storage system comprising a frame having a wiring harness and a plurality of battery module support assemblies. A plurality of storage modules for storing energy are adapted to slidably engage with the frame along the battery module support assemblies and electrically connect to the wiring harness via a wiring harness connector. A wiring box is electrically connected to the wiring harness and used for coupling AC power to/from the wiring harness.
Absstract of: EP4826799A1
The disclosure provides a tetrafluoroethylene-based polymer composition for a binder for an electrochemical device, capable of yielding a mixture sheet with excellent uniformity, and a binder for an electrochemical device, an electrode mixture, an electrode, and a secondary battery each containing the composition. Provided is a tetrafluoroethylene-based polymer composition for use in a binder for an electrochemical device, the tetrafluoroethylene-based polymer composition having an average particle size of 1 µm or more and 300 µm or less and an average aspect ratio of 2.0 or less.
Absstract of: EP4826788A1
Provided, according to exemplary embodiments of the present invention, is a negative electrode active material capable of improving the life characteristics of a secondary battery. The negative electrode active material comprises, in wt%,: 0.01-0.05% of iron (Fe), 0.0025-0.0035% of boron (B), 0.0025-0.0035% of phosphorus (P), and the balance of silicon (Si) and inevitable impurities. Provided, according to other exemplary embodiments of the present invention, are a negative electrode comprising the above-described negative electrode active material, and a secondary battery including same.
Absstract of: WO2025128888A1
Disclosed is a method for producing an ordered graphitic carbon. Said method includes contacting a material including disordered elemental carbon and a metal with chlorine gas, thereby yielding a gaseous product comprising a chloride of the metal and a solid product comprising the ordered graphitic carbon. A lithium ion battery comprising the ordered graphitic carbon.
Absstract of: EP4826845A1
The present application provides a cooling plate, a direct cooling assembly, and a battery pack. The cooling plate includes a cooling pipe, at least one pipe joint, and a sealing member. The at least one pipe joint is connected to an end of the cooling pipe to communicate with the cooling pipe, and the sealing member is arranged between the pipe joint and the end of the cooling pipe.
Absstract of: EP4826834A1
0001 According to exemplary embodiments of the present disclosure, a pack housing is provided. The pack housing includes: a base plate intersecting a first direction; a cooling channel within the base plate, comprising a sub-flow path and a main flow path supplying coolant to the sub-flow path; and a blocking member within the sub-flow path, wherein the blocking member includes a bimetal part comprising a first metal and a second metal having different thermal expansion coefficients and arranged in a second direction intersecting the first direction.
Absstract of: EP4826792A1
0001 The present invention relates to a positive electrode active material for a lithium secondary battery, which is a lithium transition metal oxide containing excess lithium, excess nickel, and a buffer metal element, wherein the lithium transition metal oxide has a molar ratio of lithium to the lithium transition metal oxide of 1.02 to 1.1 and a molar ratio of nickel to transition metal of 0.75 or more, and wherein the lithium transition metal oxide has, as a basic framework, a structure in which a lithium layer and a transition metal layer are alternately stacked, anisotropic contraction and expansion during charging and discharging are suppressed as a part of the buffer metal element in the transition metal layer is substituted into the lithium layer and a part of lithium ions in the lithium layer is substituted into the transition metal layer, and the lithium transition metal oxide has a sphericity of 0.8 or more.
Absstract of: EP4826784A1
The present invention relates to an anode active material, a method for manufacturing same, and a secondary battery including same. The anode active material includes: a silicon-carbon composite including crystalline carbon, silicon-based particles bound to the surface of the crystalline carbon, and amorphous carbon on the surfaces of the crystalline carbon and silicon-based particles; and a carbon coating layer covering the surface of the silicon-carbon composite, wherein the anode active material may include 0.05-0.25 wt% of sulfur based on the total weight thereof.
Absstract of: EP4825799A1
According to exemplary embodiments of the present invention, provided is a silicon-carbon composite capable of improving lifespan characteristics of a secondary battery. The silicon carbon-composite is a silicon-carbon composite for a negative electrode active material, comprising a carbon matrix and silicon nanoparticles captured in the carbon matrix, wherein the surface roughness (Rq) of the silicon-carbon composite may be 4-50 nm.
Absstract of: WO2025124686A1
Battery management systems (BMSs) are required to estimate many non-measurable values that describe the actual operating condition of batteries, such as the state of charge (SOC) or the state of health (SOH). In order to improve this evaluation, many physical states and parameters can be estimated using physics-based models (PBMs). These estimates could be used to improve the control and prognosis of batteries. The invention proposes a method to estimate the state of health (SOH) parameters of a lithium-ion battery cell, using interconnected sigma-point Kalman filters (SPKFs) and a single-particle model with electrolyte dynamics (SPMe). The observability of each eSOH parameter is assessed and the state/parameter estimation approach is described. The method is capable of estimating the eSOH parameters and all the degradation modes that can occur inside a lithium-ion battery cell using only cell voltage and current measurements.
Nº publicación: EP4826775A1 21/10/2026
Applicant:
POSCO HOLDINGS INC [KR]
POSCO Holdings Inc.
Absstract of: EP4826775A1
0001 The present invention relates to a lithium metal electrode and a method for preparing the same. The lithium metal electrode of the present invention may include a current collector, a metal layer positioned on at least one surface of the current collector and including a lithium alloy, and a protective layer positioned on the metal layer, wherein the protective layer may include amorphous carbon and a silicate clay mineral having a 2:1 layered crystal structure.
BOPI
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