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1373
resultados
Última actualización
13/12/2025 [07:31:00]
Resultados 175 a 200 de 1373
Resumen de: US2025379264A1
A method is disclosed for manufacturing an electrochemical cell including an anode, an electrolyte, and a cathode including cations that move from the cathode to the anode during charging. The method comprises: (a) obtaining a measurement of an electrochemical feature at a selected time in a formation charging phase for creating the electrochemical cell from a cell structure, wherein the electrochemical feature is other than capacity, resistance, and voltage decay; and (b) maintaining or adjusting, based on the measurement of the electrochemical feature, at least one process parameter of a manufacturing process selected from: a production process for an anode of a later-produced electrochemical cell, a production process for a cathode of the later-produced electrochemical cell, an assembly process for a cell structure of the later-produced electrochemical cell, a filling process for an electrolyte of the later-produced electrochemical cell, and a formation charging process of the later-produced electrochemical cell.
Resumen de: US2025379231A1
A negative electrode active material includes a carbon-based material, where particle surface of the carbon-based material includes an alkali metal element, and the alkali metal element includes element sodium and/or element potassium. The surface of carbon-based material such as a graphite material is treated to obtain an organic substance layer similar to an SEI film on the particle surface, which can effectively improve the quality of the SEI film, thereby improving the initial coulombic efficiency and cycling performance of the secondary battery.
Resumen de: US2025379232A1
A secondary battery and an electric apparatus including the secondary battery. The secondary battery includes a negative electrode plate. The negative electrode plate includes a negative electrode current collector and a negative electrode film layer disposed on at least one surface of the negative electrode current collector, where the negative electrode film layer includes an additive capable of undergoing a nucleophilic reaction with a cyclic carbonate compound.
Resumen de: US2025379233A1
The present invention relates to a binder composition for a sulfur cathode of a lithium-sulfur secondary battery, comprising at least one selected from a polar monomer, an ionic monomer, a polar polymer, and an ionic polymer, and comprising a counterion that forms a pair with an ion included in the ionic monomer and the ionic polymer; and to a sulfur cathode and a lithium-sulfur secondary battery comprising the same. Accordingly, the shuttle phenomenon of lithium polysulfide can be prevented, and the formation of a three-dimensional lithium sulfide structure on the surface of the sulfur cathode can be induced, thereby preventing the loss of active material and suppressing passivation of the sulfur cathode surface, ultimately enabling the realization of a high energy density lithium-sulfur secondary battery.
Resumen de: US2025379344A1
A battery and an electrical apparatus. The battery includes a battery cell, a support component, a first plate, and a protective component; the battery cell includes a pressure relief mechanism, and the pressure relief mechanism is arranged on a first wall of the battery cell; the support component abuts against the first wall to support the battery cell, and the support component is arranged between the battery cell and the first plate. The support component and the first plate are arranged at an interval to form an accommodating space, and the accommodating space is used to accommodate an emission from the battery cell when the pressure relief mechanism is actuated; and the protective component is arranged between the support component and the first plate and arranged opposite to the pressure relief mechanism, and is used to withstand an impact force of the emission.
Resumen de: US2025379216A1
A negative electrode active material, a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode active material comprises a silicon-based active material; and graphite including natural graphite and artificial graphite, where an absolute difference between an average particle diameter of the natural graphite and that of the artificial graphite is 10% or less based on the average particle diameter of artificial graphite, and an absolute difference between an average particle diameter of the silicon-based active material and the average particle diameter of the artificial graphite is 40% or less based on the average particle diameter of artificial graphite.
Resumen de: US2025379236A1
A columnar secondary battery includes an electrode plate. The electrode plate includes a current collector and a material layer located on at least one surface of the current collector. Along a width direction of the electrode plate unwound, the current collector includes a coating region coated with the material layer, and a blank foil region. At least a part of the blank foil region forms a flattened portion. The blank foil region is provided with a plurality of first stripes. The plurality of first stripes extend along the width direction and are spaced apart from each other along a length direction of the electrode plate unwound. A mass of the blank foil region is M0 g, a mass of a portion of the current collector equivalent to the plurality of first stripes in volume is M1 g, and V=M1/(M0+M1).
Resumen de: US2025379339A1
A current collector plate includes a frame member having at least two arms. The at least two arms are arranged radially on the frame member to define two or more slots in the frame member. The current collector plate includes two or more flap members coupled to the inner periphery of the frame member and positioned in the two or more slots without being in contact with the at least two arms. Each flap member is in a plane different from the plane in which the frame member lies.
Resumen de: US2025379335A1
This application provides a battery cell, a battery, and an electrical device. The battery cell includes a shell, an electrode post, an electrode assembly, and an insulation piece. The shell includes a sidewall and a first end wall connected to the sidewall. The electrode post is dielectrically mounted on the first end wall of the shell. The electrode assembly is located in the shell. The electrode assembly includes a first tab. The first tab faces the first end wall and is electrically connected to the electrode post. The insulation piece includes a first insulation portion located between the bottom wall and the first tab, and a second insulation portion peripherally disposed at an outer edge of the first insulation portion and protrudes toward a side at which the electrode assembly is located.
Resumen de: US2025379258A1
A secondary battery according to the present disclosure includes an electrode body with a zigzag structure, and an electrolyte solution. The electrode body includes a first outer surface and a second outer surface. The electrolyte solution includes a surplus solution that is disposed at least between the first outer surface and a case. The separator includes a plurality of first protrusion parts including a first bent part on the first outer surface, and a plurality of second protrusion parts including a second bent part on the second outer surface. A plurality of penetration holes are provided at the first protrusion part. A protrusion length of the second protrusion part is larger than a protrusion length of the first protrusion part.
Resumen de: US2025379229A1
An anode for a secondary battery includes: an anode current collector, a first anode active material layer disposed on at least one surface of the anode current collector and including a first anode active material and a first binder, and a second anode active material layer disposed on the first anode active material layer and including a second anode active material, a second binder, and a conductive additive, wherein the conductive additive includes a conductive polymer and a water-soluble polymer having a weight average molecular weight of 10,000 g/mol to 100,000 g/mol.
Resumen de: US2025379223A1
A negative electrode active material, a method for preparing the same, a negative electrode composition and a negative electrode including the same, and a lithium secondary battery including the negative electrode are provided. The negative electrode active material comprises a silicon-based active material; and a carbon coating layer covering at least a portion of an outer surface of the silicon-based active material, the carbon coating layer comprising carbon having a Raman peak intensity ratio ID/IG of 0.1 to 1.2, the silicon-based active material including Si and optionally SiOx (0<x<2), and Si being comprised in an amount of 70 parts by weight or more based on 100 parts by weight of the silicon-based active material.
Resumen de: US2025379228A1
The present invention provides a positive electrode active material which contributes to the improvement of safety of a secondary battery. This positive electrode active material, which is contained in a nonaqueous electrolyte secondary battery, contains a lithium transition metal composite oxide; the lithium transition metal composite oxide contains Ni, Mn, P, Me (Me is composed of at least one element that is selected from the group consisting of B, Al, Si, Ti, Fe, Co, Sr, Zr, Nb, Mo, Sn, W and Bi), and at least one of Ca and Sr, respectively at specific content ratios; and the ratio m/n of the half-value width m of the diffraction peak of the (003) plane to the half-value width n of the diffraction peak of the (110) plane in an X-ray diffraction pattern obtained by X-ray diffractometry satisfies 0.75≤m/n.
Resumen de: EP4661094A1
A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode has a negative electrode current collector, and a negative electrode mixture layer formed on a surface thereof. The negative electrode mixture layer contains a negative electrode active material including at least a Si-containing material. The negative electrode mixture layer has a first region and a second region, the first region being nearer to the negative electrode current collector than the second region. An inter-particle porosity S1 in the first region and an inter-particle porosity S2 in the second region satisfy S1 ≤ 7%, and S2 > S1. The Si-containing material has a carbon phase and silicon phases dispersed therein, and an intra-particle porosity of the Si-containing material is 6% or more and 20% or less.
Resumen de: US2024264121A1
Systems, techniques, and computer-implemented processes for cycle life performance determination of batteries using non-invasive acoustic solutions. In one aspect, a battery inspection system includes a plurality of transducers, and a controller communicatively coupled to the plurality of transducers. The controller is configured to send one or more commands to a first subset of the plurality of transducers for transmitting acoustic signals through a battery cell, receive, from a second subset of the plurality of transducers, response signals in response to the acoustic signals transmitted through the battery cell, and determine a cycle life performance score for the battery cell based on at least the response signals, the score indicating an estimated number of charge-discharge cycles that the battery cell goes through prior to reaching a threshold retention capacity.
Resumen de: WO2024165544A1
The invention provides a cell contact-making unit (6) for a battery having a plurality of cells, wherein, in the assembled state, adjacent cells are electrically connected to one another via cell connectors (8) and a sensor cable set (12) is provided and has at least one sensor line (14) which, in order to measure the cell voltage, is electrically connected to the cell in a manner protected against overcurrent, wherein the sensor line (14) is electrically connected to a voltage tapping point via a bonding wire (64) and by means of bonding.
Resumen de: EP4661151A1
Disclosed are a battery cell holding device and a battery cell performance test system including the same. The battery cell holding device is configured to receive a tray loaded with battery cells, unload the battery cells from the tray and hold the battery cells, load tested battery cells into the tray, and transfer out the tested battery cells. The battery cell holding device includes a tray seating unit configured to receive a tray, a loading conveyor configured to load a predefined number of battery cells transferred thereto, a shuttle unit configured to transfer the battery cells introduced thereinto from one position to another position, a first transfer module configured to transfer the battery cells in the tray seated in the tray seating unit to the shuttle unit, and a second transfer module configured to transfer, to the loading conveyor, the battery cells transferred by the shuttle unit.
Resumen de: EP4661145A1
Disclosed is a secondary battery in which a positive electrode and a negative electrode are wound with a separator interposed therebetween. The positive electrode includes a belt-shaped positive electrode current collector, and a positive electrode mixture layer. The positive electrode has a positive electrode end part including one end thereof in the lateral direction, and a positive electrode main part other than that. The positive electrode end part has an exposed portion of the positive electrode current collector provided intermittently at a plurality of positions along the longitudinal direction of the positive electrode current collector, and the exposed portion is free of the positive electrode mixture layer from the one end in the lateral direction through to the positive electrode main part. The negative electrode includes a belt-shaped negative electrode current collector. The negative electrode has a negative electrode end part facing at least part of the positive electrode end part, and a negative electrode main part other than that. The expansion rate of the negative electrode is higher at the negative electrode end part than at the negative electrode main part.
Resumen de: EP4661190A1
A composition for an electrochemical device functional layer contains a particulate polymer having a particle diameter distribution that satisfies specific aspects and having a hydroxyl group surface localization rate of 25% or more.
Resumen de: EP4660647A1
In a battery analysis system, a data reception unit receives battery data of a battery pack mounted on an apparatus via the apparatus or a data relay system. A battery data retention unit stores the battery data that have been received. A battery state analysis unit reads the battery data that has been stored, analyzes the battery data that has been read, and estimates a battery state for each predetermined analysis item. A data amount controller controls an amount of battery data to be stored in the battery data retention unit according to at least one analysis item selected by a user.
Resumen de: EP4661182A1
A split battery holder is securely bonded together while retaining a plurality of rechargeable battery cells. The power source apparatus 100 holds a plurality of rechargeable battery cells 1 in a first battery holder 2A and a second battery holder 2B joined together through a bonding layer 4. The first battery holder 2A is provided with a plurality of first holder cylindrical sections 21, a first mating surface 22, and a plurality of side wall extensions 23. Cell exposed regions 24 are established between adjacent side wall extensions 23, and filling grooves 41, which hold adhesive 40, are formed in regions surrounded by rechargeable battery cells 1 and side wall extensions 23. The second battery holder 2B is provided with a plurality of second holder cylindrical sections 31, a second mating surface 32, and protruding posts 33. The protruding posts 33 insert into filling grooves 41 but are configured not to make contact with the first mating surface 22 or the side wall extensions 23. When the first battery holder 2A and the second battery holder 2B are connected, protruding posts 33 are inserted in the filling grooves 41 and are bonded and attached to the first battery holder 2A and rechargeable battery cells 1 via the bonding layer 4.
Resumen de: CN120642081A
The invention relates to a method (50) for producing a battery cell (100), in which a battery cell housing blank (10) having a first side (11) and a second side (12) is provided, in which the first side (11) and the second side (12) are connected by a folded edge (30), in which a first cavity (31) is formed or provided on the first side (11) and a second cavity (32) is formed or provided on the second side (12), and in which a second cavity (32) is formed or provided on the second side (12). The first side (11) and/or the second side (12) comprises at least one third cavity (33) wherein the first side (11) and the second side (12) are folded along a folding edge (30) and wherein the first side (11) and the second side (12) are sealed along at least two edges adjoining the folding edge (30), leaving an opening (15), and wherein the battery cell assembly (200) is placed in a space (14) formed by the first cavity (31) and/or the second cavity (32), and filling an electrolyte solution (110) into the first chamber (31), the second chamber (32) and the at least one third chamber (33), the opening (15) being sealed or closed after filling the electrolyte solution (110), and a gas component being discharged into the at least one third chamber (33). The invention further relates to a battery cell housing blank (10), a manufacturing state battery cell (20) and an electrochemical cell (100).
Resumen de: CN120641361A
The present invention relates to a positive electrode active material as defined in the claims and the description, to the use thereof for suppressing thermal runaway in a non-aqueous electrolyte secondary battery, and to a non-aqueous electrolyte secondary battery employing the same.
Resumen de: WO2024165543A2
The contact arrangement is used to make electrical contact with an electrical component, in particular of a motor vehicle, and has a contact element (24), to which a line (8) is connected, wherein a bonding wire (22) is connected to the contact element (24) and is connected to the component by means of bonding. This enables a compact contact arrangement that is simple to produce. This contact arrangement is, in particular, part of a cell contact-making unit (2) for a battery.
Nº publicación: EP4661087A1 10/12/2025
Solicitante:
PEOPLE & TECH INC [KR]
People & Technology Inc
Resumen de: EP4661087A1
The present invention relates to an electrode material coating back roll having an inflow air discharge function. The present invention, which is arranged in correspondence to an active material coating device for manufacturing a secondary battery and supports a current collector fabric while the coating device coats the current collector fabric with an active material, comprises: a close contact surface portion in close contact with the current collector fabric; and an exhaust induction portion which is integrated with the close contact surface portion, and which discharges air flowing between the back roll and the current collector fabric to the outside so as to prevent the current collector fabric from becoming delaminated by inflow air. The electrode material coating back roll having an inflow air discharge function, of the present invention, can immediately discharge incoming air even if air flows between the back roll and the current collector fabric, and thus delamination of the current collector fabric from the back roll is prevented so that a wrinkle-free electrode material layer with uniform thickness can be applied.
BOPI
Sede Electrónica
