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1601
results.
Updated on
20/03/2026 [07:15:00]
Results 875 to 900 of 1601
Absstract of: EP4707834A1
A battery diagnosis apparatus includes a voltage obtaining unit configured to obtain voltage information of each of a plurality of battery units included in each of a plurality of vehicles and a controller configured to calculate a cumulative voltage variance of each of the plurality of battery units, based on the voltage information, calculate at least one deviation that is deviation of cumulative voltage variances for each of the plurality of vehicles, and manage the plurality of battery units based on a distribution of the at least one deviation of the plurality of vehicles.
Absstract of: EP4708498A2
A battery pack includes a plurality of battery cells arranged adjacent to one another, ribs arranged respectively between battery cells of the plurality of battery cells, a frame connected to opposite end portions of the ribs and accommodating the plurality of battery cells together with the ribs, and an upper label attached to an upper surface of the frame, and the upper label includes at least one opening that is recessed from the frame in a direction toward the ribs, and the ribs each include a first region overlapping with the upper label, a second region located to correspond to the opening and having a thickness greater than a thickness of the first region, and a connection portion connecting the first region and the second region to each other.
Absstract of: EP4708492A1
A battery rack according to an embodiment of the present disclosure is for housing a battery, the battery rack comprising: a first sub-rack that includes a first column that is vertically erected, and includes a plurality of battery housing spaces formed along the first column, and a second sub-rack that includes a second column that is vertically erected, and includes a plurality of battery housing spaces formed along the second column, wherein the first sub-rack and the second sub-rack are arranged along the longitudinal direction of the battery rack, and wherein the first sub-rack and the second sub-rack have a structure with an opened upper end.
Absstract of: EP4708521A1
A battery cell (20), a battery, and an electric apparatus are provided. The battery cell (20) includes: a housing (22), where the housing (22) forms an accommodating space; an electrode assembly (21), where the electrode assembly (21) is disposed within the accommodating space; a top cover (23), where the top cover (23) is connected to the housing (22) and covers the accommodating space, the top cover (23) is provided with a protrusion (231), the protrusion (231) is located within the accommodating space, and the protrusion (231) is configured to shield between the electrode assembly (21) and at least a portion of the connection at which the top cover (23) is connected to the housing (22). By providing the protrusion (231) on the top cover (23), cooperation between the protrusion (231) and the housing (22) can block laser or falling particles during welding, and prevent laser or particles from entering the accommodating space and thus causing damage to the electrode assembly (21).
Absstract of: EP4708388A1
The present invention relates to a positive electrode active material capable of improving performance of a lithium secondary battery, wherein it relates to a positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion which is formed on the lithium composite transition metal oxide and includes an amorphous lithium compound, wherein the coating portion includes 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 and the second coating portion each independently include boron (B) and cobalt (Co), and optionally include 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, and a positive electrode and a lithium secondary battery which include the same.
Absstract of: EP4708398A1
The present invention relates to a positive electrode active material comprising a lithium transition metal oxide in a form of a single particle, wherein the lithium transition metal oxide contains 60 mol% or more of nickel among total transition metals, wherein, when a pressure of 6,500 kgf/cm<sup>2</sup> is applied to the positive electrode active material, an amount of fine powder having a particle diameter of 1 µm or less is 10 vol% or less based on a total volume of the positive electrode active material after the applying the pressure, a method for preparing the positive electrode active material, and a positive electrode and lithium secondary battery including the positive electrode active material.
Absstract of: EP4708387A1
The present invention relates to a positive electrode active material including a lithium composite transition metal oxide in a form of a single particle; and a coating portion formed on a surface of the lithium composite transition metal oxide, wherein the coating portion includes 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 has a concentration gradient in which an amount of boron (B) decreases and an amount of cobalt (Co) increases from a surface thereof toward a center of a positive electrode active material particle, and the amount of the boron (B) among total metals excluding lithium in the positive electrode active material is in a range of 0.1 mol% to 1.25 mol%, and a positive electrode and a lithium secondary battery which include the same.
Absstract of: TW202512562A
Provided herein are devices, systems, and methods for improving performance and lifetime of energy devices. In some embodiments, the present disclosure provides an acoustic module for improving energy device performance, the acoustic module comprising: at least one acoustic device configured to be operably coupled to an energy device, wherein the at least one acoustic device comprises (1) an acoustic wave generator configured to generate acoustic waves and (2) a housing enclosing the acoustic wave generator, wherein the housing is configured to be attached to an external surface of the energy device in a configuration that permits the acoustic waves to be streamed into the energy device; and at least one controller configured to control the at least one acoustic device to stream the acoustic waves into the energy device.
Absstract of: CN121014138A
A battery housing for an automobile includes a lower basin and an upper cover disposed on the lower basin to collectively define an interior cavity. At least one battery module is disposed in the interior cavity and encapsulated between the lower basin and the upper cover. At least one of the lower basin or the upper cover is formed as a one-piece stamped part by a two-part expansion forming process. In a preferred arrangement, both the lower basin and the upper cover of the battery case are each formed as a one-piece stamped part by a two-part expansion forming process, which provides both the upper cover and the lower basin, which are more compact than the one-piece stamped part design of the prior art. The upper cover and the lower basin have a tighter draft angle (less than 2 degrees) and sharper upper and lower corners (a plan corner radius between 20 mm and 95 mm, etc.), increasing the space for the interior cavity.
Absstract of: WO2024226833A1
A lithium-ion battery cell includes an electrode assembly having an anode and a cathode. The anode includes an anode current collector and a first silicon-containing anode active material layer disposed on a first side of the anode current collector, where the first silicon-containing anode active material layer includes at least 85 atomic % silicon. The cathode includes a cathode current collector and a first cathode active material layer disposed on a first side of the cathode current collector, where the first side of the cathode current collector is proximal to the first side of the anode current collector. The battery cell further includes a lithium-ion electrolyte disposed between the anode and cathode, and a battery cell housing containing the electrode assembly and the electrolyte. During an electrochemical charging event, the first cathode active material layer is compressible to less than 95% of its thickness prior to the charging event.
Absstract of: WO2024226580A2
Provided herein are halogenated ether compounds of Formula (I), Formula (II), or Formula (III): Formula (I)Formula (II)Formula (III) Also provided are electrolytes comprising one or more compounds of Formula (I), Formula (II), or Formula (III) and electrochemical cells comprising electrolytes comprising one or more compounds of Formula (I), Formula (II), or Formula (III).
Absstract of: US20260048671A1
A battery system for powering an electric vehicle can comprise a plurality of battery modules, each of the plurality of battery modules comprising a housing and a plurality of cells disposed within the housing. A plumbing arrangement include a straight tube disposed between adjacent modules in the plurality of modules. An anchor arrangement for each of the plurality of battery modules can facilitate various mounting configurations for each respective battery module. An exhaust system for the battery system can be reconfigurable with a 1:1 vent tube to module ratio. Custom adapters can be configured for mounting airframer exhaust systems to each of the plurality of battery modules.
Absstract of: EP4708556A1
Problem A technique is disclosed that enables prevention of a problem in which an electrolytic solution leaks out from an injection hole.Solution A cell container 11A of a battery cell 10A of the present embodiment includes: an injection hole 22 including a check valve mechanism 20A configured to allow injection of an electrolytic solution 91 into the cell container 11A and prevent outflow; and a valve-opening operation portion 27 provided in the check valve mechanism 20A and configured to bring the check valve mechanism 20A into an open state by applying an external force other than a fluid pressure.
Absstract of: EP4708530A1
The present application provides a battery cell, a battery and an electrical device. The battery cell includes a shell and a pressure relief component; the shell includes a first wall portion; the pressure relief component is arranged on the first wall portion, and includes a first surface and a second surface which are oppositely arranged in the thickness direction of the first wall portion; the pressure relief component is provided with a first groove which is recessed from the first surface toward the second surface, the first groove defines at least one predetermined pressure relief region, and the pressure relief component is configured to be capable of rupturing along at least part of the first groove when the battery cell is subjected to pressure relief; and the width of the first wall portion is W, the sum of the areas of all predetermined pressure relief regions is S, and W and S meet: 10mm≤W≤100mm, 300mm<2>≤S≤1500mm<2>, which is conducive to prolonging the service life of the battery cell and improving the operational reliability of the battery cell.
Absstract of: EP4708446A1
The present disclosure provides a battery cell detection system and a detection method thereof. The battery cell detection system includes: a conveying device (1) used to convey a battery cell to a gripping station; a first transfer device (2) disposed opposite to the conveying device (1) in a vertical direction, where the first transfer device (2) includes a first gripping mechanism (21) and a first moving mechanism (22) connected to each other, the first gripping mechanism (21) is used to grip the battery cell, and the first moving mechanism (22) is used to transfer the battery cell from the gripping station to a detection station and configured to move a portion to be detected of the battery cell to a predetermined position; and a detection device (3) disposed at the detection station, where the detection device (3) is used to detect the portion to be detected of the battery cell.
Absstract of: EP4708417A1
Disclosed is a battery cell pressurizing device, which includes a plurality of mounting tables respectively configured so that at least one battery cell is mounted thereon, the plurality of mounting tables being arranged side by side in one direction; a pressurizing unit configured to pressurize the battery cells mounted on the plurality of mounting tables by pressing the plurality of mounting tables in a direction in which the plurality of mounting tables come into close contact with each other; and a plurality of pressure-sensitive sensors distributed on the plurality of mounting tables and configured to detect pressure applied to the battery cells mounted on each mounting table separately for each battery cell or to detect the pressure separately for different parts of each battery cell.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: CN119731791A
A coating is disclosed comprising two elements (A and B) and a carbonaceous material, where element A is capable of alloying with lithium and element B is not capable of alloying with lithium. A method for preparing the coating and an all solid state battery (ASSB) comprising the coating are also disclosed. In one embodiment, ASSBs comprising the coating exhibit reduced charge overpotential as well as improved specific capacity and cycle life.
Absstract of: EP4707459A1
A molded article of the present invention comprises: a woven composite sheet formed from two or more stacked sheets of thermoplastic continuous fiber reinforced woven composites; and a nonwoven fabric heated and compressed to be stacked on at least one surface of the woven composite sheet, wherein the thermoplastic continuous fiber reinforced woven composites are woven using, as warp and weft, a glass fiber composite comprising approximately 100 parts by weight of glass fiber, approximately 35-72 parts by weight of a polypropylene resin, approximately 12-35 parts by weight of piperazine pyrophosphate, approximately 1-20 parts by weight of a phosphazene compound and approximately 1-20 parts by weight of zeolite. The glass fiber composite has excellent lightweightness, flame retardancy, impact resistance, stiffness, exterior characteristics and the like.
Absstract of: EP4706787A1
A fire extinguishing material for lithium battery fire suppression, of the present invention, is composed of: a granular first fire extinguishing material, which is prepared by firing a silica powder and the like and which has a predetermined size; a second fire extinguishing material of a single-layer graphene compound applied, in multiple layers, to the surface of the first fire extinguishing material; and a third fire extinguishing material made of a metal carbonate covalently bonded or applied to the graphene compound. During a lithium battery fire, when the fire extinguishing material of the present invention is applied to a fire source through a discharge means such as a fire extinguisher, the fire extinguishing material is put on top of the fire source, the second fire extinguishing material, that is, the metal carbonate, which comes in direct contact with the fire source, adsorbs carbon dioxide, which is most abundantly generated from the fire source, so as to absorb radicals while being converted into a bicarbonate, thereby primarily extinguishing the fire, and the graphene compound, which is the second fire extinguishing material with excellent thermal conductivity, rapidly releases heat from the fire to the outside so as to improve, by means of effective cooling, fire extinguishing performance for the lithium battery fire, thereby preventing thermal runaway during the lithium battery fire, and extinguishes the lithium battery fire together with an additional smothe
Absstract of: EP4708485A1
Provided is a lid used with a casing of a power storage device, wherein the lid includes a heat-fusible resin layer the main material of which is an olefin-based copolymer.
Absstract of: EP4708419A1
The invention relates to device (400) and a method for manufacturing a secondary battery (100). The resulting secondary battery (100) includes an electrode assembly (110) including a side that extends in a first direction, a case (150) accommodating the electrode assembly (110), a lead tab (132_1, 134_1) protruding from the side of the electrode assembly (110), and a strip terminal (142, 144) connected to the lead tab (132_1, 134_1). The lead tab (132_1, 134_1) is bent in the first direction. The strip terminal (240) includes a first section (242) connected to the lead tab (230) and extending in the first direction, and a second section (244) connected to the first section (242) and bent in a second direction that intersects the first direction. An angle between the first section (242) and the second section (244) is 90 degrees or less.
Nº publicación: EP4708376A1 11/03/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4708376A1
A positive electrode includes a positive electrode active material layer including a first positive electrode active material and a second positive electrode active material having different average particle diameters from each other. An average particle diameter D50 of the first positive electrode active material is larger than an average particle diameter D50 of the second positive electrode active material, the first positive electrode active material and the second positive electrode active material include single-particle type particles, and an interface resistance of the positive electrode having an SOC of 50% measured in a coin half-cell manufactured using the positive electrode is 6.5 Ω to 8.5 Ω, and an interface resistance of the positive electrode having an SOC of 10% measured in a coin half-cell manufactured using the positive electrode is 15 Ω to 19 Ω.
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