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1039
results.
Updated on
17/07/2026 [07:34:00]
Results 1000 to 1025 of 1039
Absstract of: EP4773392A1
0001 Disclosed are a porous separator for a rechargeable lithium battery, a method of manufacturing the porous separator, and a rechargeable lithium battery including the porous separator. The porous separator for a rechargeable lithium battery includes a boron nitride nanosheet (BNNS), a boron nitride nanotube (BNNT), and a polymer that is or includes polyimide (PI), aramid, or a combination thereof.
Absstract of: EP4773252A1
0001 The present disclosure relates to a positive electrode slurry composition, a positive electrode, and a lithium secondary battery including the same, and particularly to a positive electrode slurry composition for a lithium secondary battery which includes a positive electrode active material, a film-forming additive, and a solvent, wherein the film-forming additive is a compound represented by Formula 1, a positive electrode for a lithium secondary battery, and a lithium secondary battery including the same.
Absstract of: GB2703003A
A hollow cell 100 comprising housing 300 enclosing an electrode assembly 200 that is arranged around the conduit 310 extending entirely therethrough. The electrode assembly may surround the conduit perimeter and be electrically connected to first (110,Fig.7) and second terminals (120,Fig.7). The inner housing (320,Fig.5) may comprise at least part of the first and second terminals at opposite ends whilst surrounding the conduit 310. The second terminal may be proportioned to be receivable within the first terminal of an adjacent cell. The inner housing may comprise an inner conductive layer sandwiched between conduit insulation (332,Fig.3) and internal insulation layers (334,Fig.3) and may comprise a flange (324,Fig.3) and a conductive support member (338,Fig.5) received within an elongate tubular portion. The outer housing (350,Fig.5) may comprise an internal insulation layer (354,Fig.5) and a conductive layer (352,Fig.5) electrically connected to the first terminal. A plurality of hollow cells may be electrically connected. Fig. 1
Absstract of: EP4773317A1
0001 A solid-state battery includes: a positive electrode current collector; a positive electrode layer disposed on at least one main face of the positive electrode current collector; an insulating layer that is disposed on the one main face of the positive electrode current collector, is contiguous with the end portion of the positive electrode layer, and is flush with the positive electrode layer; and a solid electrolyte layer disposed on the positive electrode layer and the insulating layer with its end portion in a position overlying the insulating layer.
Absstract of: EP4773336A1
The present disclosure relates to a device and a method for detecting an internal resistance of a battery (20). An internal resistance detection device (10) according to embodiments includes: a measuring device (12) configured to measure a state value of a battery (20); and a control device (13) configured to determine a state of charge (SOC) of the battery (20) based on the state value, estimate a lithium ion distribution state within a positive electrode active material of the battery (20) based on the SOC, determine a detection section depending on the lithium ion distribution state, and determine an internal resistance value of the battery (20) based on the state value measured within the detection section.
Absstract of: EP4773284A1
0001 This application provides an electrochemical device and an electronic device containing same. The electrochemical device includes a positive electrode plate. The positive electrode plate includes a current collector and a positive electrode material layer located on at least one surface of the current collector in a thickness direction of the current collector. The positive electrode material layer includes a first positive electrode material layer and a second positive electrode material layer. The second positive electrode material layer is located between the first positive electrode material layer and the current collector. The positive electrode material layer includes a positive active material. The positive active material includes two or more lithium nickel cobalt manganese oxide ternary materials. The two or more lithium nickel cobalt manganese oxide ternary materials are divided into two groups, with a first group of lithium nickel cobalt manganese oxide ternary materials being represented by a chemical formula Li
Absstract of: EP4773332A1
A battery system (1) includes a battery module (10) and a measuring device (20) that (i) operates in a sleep mode or an active mode, (ii) performs a state measurement function of the battery module (10) during the active mode, and (iii) deactivates the state measurement function during the sleep mode. A control device (40) controls the measuring device (20) to alternately repeat the sleep mode and the active mode during an idle period of the battery system (1), estimates a full-charge arrival time or a full-discharge arrival time according to a present state of a battery cell (11) included in the battery module (10), and sets a wake-up cycle for transitioning the measuring device (20) from the sleep mode to the active mode using the full-charge arrival time or the full-discharge arrival time.
Absstract of: EP4773467A1
An electronic device (100) includes a plurality of batteries (310, 311, 312), a plurality of first switches (330, 331, 332), each of the first switches (330, 331, 332) connected in series with a respective one of the batteries (310, 311, 312), balancing circuits (320, 321, 322), each of the balancing circuits (320, 321, 322) associated with the respective one of the batteries (310, 311, 312), and one or more processors (340) configured to control the first switches (330, 331, 332) and the balancing circuits (320, 321, 322). Each of the balancing circuits (320, 321, 322) includes a second switch and a transformer corresponding to the second switch, and the transformer includes a first coil and a second coil. The transformer is configured to operate in a first state in which a current is induced from the first coil to the second coil or a second state in which the first coil is short circuited, based on a signal transmitted to the second switch.
Absstract of: EP4773198A1
0001 Disclosed are a positive electrode for a rechargeable lithium battery, and a rechargeable lithium battery including the positive electrode. The positive electrode for a rechargeable lithium battery includes a substrate and a positive electrode active material layer on the substrate. The positive electrode active material layer includes MXene and a positive electrode active material. An amount of the MXene increases from an upper portion to a lower portion of the positive electrode active material layer.
Absstract of: WO2026110052A1
An electrochemical cell (10) comprising: - a cylindrical stack comprising, in succession, a first electrode sheet, a first separator, a second electrode sheet, a second separator; - a cylindrical housing (2) accommodating the stack, this housing comprising a cover (3), a bottom (4) incorporating a through-hole (41), a lateral shell (5) connecting the cover to the bottom; - a metal rivet passing through the bottom through the through-hole; - a seal positioned between the metal rivet and the bottom; - the bottom comprising an annular rib (42) around the through-hole protruding from a first face of this bottom facing toward the outside of the housing such that the seal is compressed by the rivet against the annular rib.
Absstract of: EP4772300A1
A welding jig inspection table for inspecting a welding jig used in manufacturing a cylindrical secondary battery includes a base plate horizontally disposed, the base plate having an upper surface configured to support the welding jig, a master electrode assembly having a first through-hole extending along a length direction at a radial center of the master electrode assembly, the master electrode assembly being transversely disposed in the welding jig, a master jig disposed on a first side of the base plate, the master jig having a third through-hole configured to be concentrically arranged with the first through-hole of the master electrode assembly, and a plurality of master pins having mutually different diameters, each master pin having a predetermined length, each master pin being configured to be inserted into the third through-hole of the master jig after passing through the first through-hole of the master electrode assembly.
Absstract of: EP4773366A1
0001 The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes a case having an opening formed therein and an electrode assembly accommodated in the case. The electrode assembly includes a first electrode, a separator, and a second electrode, with the first electrode being electrically connected to the case. A cap assembly seals an opening formed in the case and is electrically connected to the second electrode. A gasket is interposed between the case and the cap assembly. The cap assembly includes a protrusion extending upward along a perimeter of the cap assembly, and the case includes a crimping portion that surrounds the protrusion and fixes the cap assembly to the case.
Absstract of: EP4773360A1
0001 Provided are a secondary battery and a method of manufacturing the same. According to one aspect of the present disclosure, a secondary battery may be provided, which includes an electrode assembly provided with an electrode tab, a can that accommodates the electrode assembly and has a coupling hole provided in an outer part of one surface facing the electrode tab, and a terminal inserted into the coupling hole and electrically connected to the electrode tab.
Absstract of: EP4773342A2
0001 A battery pack is disclosed. According to the present disclosure, there is provided a battery pack including one or more battery modules, wherein the battery module includes: a plurality of battery cells disposed between a first cover and a second cover; and an inner column extending in a third direction between adjacent battery cells to dissipate heat transferred from side surfaces of the battery cells to at least one of the first cover and the second cover.
Absstract of: EP4773412A1
0001 The present disclosure relates to a battery module and battery pack capable of preventing tab disconnection due to swelling of a battery cell, and a vehicle including the same. A battery module and battery pack including a cell assembly configured such that a plurality of battery cells including electrode leads are stacked, wherein the cell assembly includes a plurality of bent portions formed to be bent at predetermined radii on at least one of a plurality of electrode leads arranged along a stacking direction of the plurality of battery cells, and a vehicle including the same are provided.
Absstract of: EP4773207A1
A composite positive electrode active material having excellent or suitable adhesiveness and electronic conductivity (e.g., electrical conductivity) and a positive electrode including the composite positive electrode active material are disclosed. The composite positive electrode active material may include an active material core and a graphene coating layer coated on the active material core. The graphene coating layer may partially coat the surface of the active material core. The graphene coating layer may include graphene having a surface modified with an adhesive material.
Absstract of: EP4773426A1
The technical concept of the present disclosure provides a battery pack including: a pack housing; a cell assembly including a frame provided on the pack housing and battery cells accommodated in the frame; a mounting block provided between the frame and the pack housing; and a first bolt fastening the frame to the mounting block and spaced apart from the pack housing, wherein the mounting block includes an insulation layer provided at a portion in contact with the frame and a portion in contact with the pack housing.
Absstract of: EP4773369A1
A battery module according to an exemplary embodiment of the present disclosure includes a plurality of battery cell assemblies, each including one or more battery cells and a cell cover configured to enclose five surfaces of the one or more battery cells excluding an upper surface, and a busbar frame assembly coupled to at least one surface of the plurality of battery cell assemblies.
Absstract of: EP4773213A1
0001 A method for producing an electrode material, which is a non-aqueous electrolyte secondary battery electrode material, the method including a granulation step that includes: obtaining a mixed liquid by mixing an inorganic binder aqueous solution containing an inorganic binder that contains a phosphate as a component, and a suspension liquid in which an active material is dispersed in an organic solvent; subjecting the mixed liquid to a heat treatment to vaporize water in the mixed liquid; obtaining a granulated body containing the inorganic binder and the active material, in which the inorganic binder aqueous solution has a solid content concentration of 1 mass% or more and 30 mass% or less.
Absstract of: EP4773215A1
0001 A positive electrode active material comprises a primary particle (1) and a covering (5), wherein the primary particle (1) includes an olivine-type phosphate compound, the covering (5) covers at least part of a surface of the primary particle (1), the covering (5) includes carbon and Me, and Me is at least one type selected from the group consisting of a Group 4 metallic element, a Group 5 metallic element, a Group 6 metallic element, a Group 9 metallic element, a Group 10 metallic element, a Group 13 metallic element, and boron (B).
Absstract of: EP4773367A1
0001 Disclosed is a battery module including a plurality of pouch-shaped battery cells, each of the pouch-shaped battery cells including an electrode assembly, a receiving portion configured to receive the electrode assembly, a terrace portion forming an edge of the receiving portion, and a sealed portion located outside the terrace portion, wherein a guide portion having a predetermined shape is interposed between the pouch-shaped battery cells, and one side of the guide portion is located so as to extend to the vicinity of the sealed portion.
Absstract of: EP4772478A2
An active material for a lithium secondary battery according to exemplary embodiments may have a peak ratio index (S) of 100 to 500, as defined by Equation 1 below: S=A/B (wherein A denotes the maximum peak intensity in the 4.2 V to 4.3 V region of the differential capacity (dQ/dV) discharge graph, and B denotes the peak intensity at 4.5 V in the dQ/dV discharge graph). Therefore, the cathode active material may exhibit excellent structural stability and may provide a secondary battery with improved cycle life characteristics.
Absstract of: EP4773383A1
A battery cell according to the present invention includes: a cell case accommodating an electrode assembly therein; and a safety vent provided in a venting path of the cell case and including a first vent part configured to be deformed when a pressure inside the cell case reaches a venting pressure, and a second vent part having a lower melting point than the first vent part.
Absstract of: EP4773376A1
The present disclosure provides a battery module including a cell stack in which a plurality of cells are stacked, and a module case that accommodates the cell stack. In the battery module, the module case includes a case body having an opening portion, and an end cover assembly coupled to the opening portion of the case body, and the end cover assembly includes a mounting structure for fixing the battery module to a pack case, and a voltage and current sensing structure including a sensing line directly connected to the plurality of cells.
Nº publicación: EP4773246A1 08/07/2026
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd.
Absstract of: EP4773246A1
Disclosed are a silicon-carbon composite in which, when subjected to etching with an argon (Ar) ion beam at an energy of 1,000 eV for 5,000 seconds followed by XPS analysis, a ratio of a proportion of Si measured from an Si2p spectrum to a proportion of N measured from an N1s spectrum is 35 to 200, a negative electrode active material including the silicon-carbon composite, a negative electrode composition, a negative electrode, a lithium secondary battery, a battery module, and a battery pack.
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