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1166
results.
Updated on
09/08/2025 [07:24:00]
Results 425 to 450 of 1166
Absstract of: EP4597692A1
A battery module according to an exemplary embodiment of the present invention includes a battery cell stack in which a plurality of battery cells are stacked side by side and adjacent to each other; a top frame covering an upper surface of the battery cell stack; a bus bar frame coupled to the top frame and covering a side of the battery cell stack; and a module frame having a quadrangular tube shape and configured to accommodate a battery cell assembly formed by combining the battery cell stack, the top frame, and the bus bar frame, wherein the top frame includes a first protrusion protruding toward an upper surface of the module frame at one end portion of the top frame, and wherein the module frame includes a second protrusion protruding toward the top frame at a position corresponding to the other end portion located on an opposite side to the one end portion of the top frame on an inner side of the upper surface of the module frame.
Absstract of: EP4597643A1
This application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery includes a positive electrode plate and an electrolyte solution. The electrolyte solution contains a film-forming additive. A film resistance x Ω of the positive electrode plate and a mass percent y% of the film-forming additive based on a total mass of the electrolyte solution satisfy: x × y ≤ 25. The film resistance and the film-forming additive of the secondary battery provided in this application satisfy the above relationship. The Coulombic efficiency, high-temperature cycle performance, and high-temperature storage performance of the battery can be enhanced by regulating the film resistance and the film-forming additive of the secondary battery.
Absstract of: EP4597671A1
A solid-electrolyte material of the present disclosure includes a polymer in which an acidic functional group having an alkali metal ion is bonded to a main chain, and the polymer has a crosslinked structure including an electron-donating polar group. A nonaqueous-electrolyte secondary battery of the present disclosure includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a separator, and a nonaqueous electrolyte, and satisfies at least one selected from the group consisting of (A) to (D):(A) the nonaqueous-electrolyte secondary battery further includes a membrane containing the solid-electrolyte material of the present disclosure, the membrane disposed on a surface, facing the separator, of at least one selected from the group consisting of the positive electrode and the negative electrode; (B) the nonaqueous-electrolyte secondary battery further includes a membrane containing the solid-electrolyte material of the present disclosure, the membrane disposed on a surface of a particle of at least one selected from the group consisting of the positive electrode active material and the negative electrode active material; (C) the nonaqueous-electrolyte secondary battery further includes a membrane containing the solid-electrolyte material of the present disclosure, the membrane disposed at least at a part of a surface of the separator; and (D) the separator includes the solid-electrolyte
Absstract of: EP4597522A1
Provided is a carbon nanotube dispersion liquid that exhibits good dispersion stability of single-walled carbon nanotubes.A carbon nanotube dispersion liquid according to an embodiment includes single-walled carbon nanotubes, carboxymethyl cellulose and/or a salt thereof, and water, in which a content of the single-walled carbon nanotubes is 0.47% to 1.00% by mass. The carboxymethyl cellulose and/or the salt thereof includes at least one having a degree of etherification of 0.65 to 0.85 and a weight-average molecular weight of 120,000 to 250,000. A content of the carboxymethyl cellulose and/or the salt thereof is 120 to 220 parts by mass relative to 100 parts by mass of the single-walled carbon nanotubes.
Absstract of: EP4597663A1
With respect to a nonaqueous electrolyte secondary battery (10) according to one example embodiment of the present invention, a positive electrode (11) contains, as a positive electrode active material, a lithium transition metal composite oxide that has a layered structure and contains not less than 75 mol% of Ni with respect to the total molar quantity of metal elements excluding Li. The lithium transition metal composite oxide is in the form of secondary particles that are obtained by aggregation of primary particles; and at least one element selected from the group consisting of Ca and Sr, and at least one element selected from the group consisting of W, Mo, Ti, Si, Nb and Zr are present at the interfaces between the primary particles inside the secondary particles. A negative electrode (12) contains, as a negative electrode active material, a silicon-containing material.
Absstract of: EP4597712A1
Disclosed is a battery module, including batteries arranged along a first direction that is a thickness direction of the battery and an integrated busbar cover plate. The integrated busbar cover plate is disposed at tops of the batteries. Limiting through hole groups arranged at intervals along the first direction are provided on the integrated busbar cover plate, correspond to the batteries one by one, and are matched with poles of corresponding batteries. In the first direction, a length of a limiting through hole in the limiting through hole group near an end part of the integrated busbar cover plate is greater than that of a limiting through hole in the limiting through hole group located in a middle part of the integrated busbar cover plate. The length of the limiting through hole is a size of the limiting through hole along the first direction.
Absstract of: EP4597696A1
The present invention relates to a secondary battery including: an electrode assembly; and a pouch type exterior including an accommodation part, which accommodates the electrode assembly, and a sealing part provided to surround at least a portion of the accommodation part to seal the accommodation part, wherein the sealing part includes: a first folding portion provided so that an outer end of the sealing part is folded toward the accommodation part along a first folding line spaced a first distance from the outer end of the sealing part toward the accommodation part; and a second folding portion provided so that the first folding portion is folded toward the accommodation part along a second folding line spaced a second distance from the first folding line toward the accommodation part, wherein, when a predetermined line spaced a predetermined distance from the outer end of the sealing part toward the accommodation part is referred to as a sealing line, the sealing part includes a sealed portion in which a portion from the outer end of the sealing part to the sealing line is sealed by fusion, wherein, when a distance from the outer end of the sealing part to the accommodation part is referred to as a width of the sealing part, a distance from the sealing line to the accommodation part is 45% to 55% of the width of the sealing part.
Absstract of: EP4597084A1
The present invention relates to a method for detecting a metal foreign material in an electrode active material, wherein the method includes a first step of dissolving an electrode active material in an aqueous nitric acid solution to form a metal foreign material extraction solution, a second step of plating a metal foreign material in the metal foreign material extraction solution on an electrode, and a third step of measuring an amount of the metal foreign material plated on the electrode.
Absstract of: EP4597680A1
In the present invention, a non-aqueous electrolyte secondary battery has a wound electrode body comprising a negative electrode (12) in which a negative electrode composite layer (32) is formed on a negative electrode core (30). The negative electrode (12) has a non-facing part (12a) on the side of the electrode body on the inner end side in the winding direction, the non-facing part (12a) not facing the positive electrode across the separator. The non-facing part (12a) has a composite material non-facing part (12c), in which the negative electrode composition layer (32) is formed on at least one surface of the negative electrode core (30). In the composite material non-facing part (12c), the winding-direction length of a negative electrode composite layer (32a) formed on an inner circumference surface (30a) of the negative electrode core (30) is 0.3 turns or more along the winding direction of the composite material non-facing part (12c), and the winding-direction length of a negative electrode composite layer (32b) formed on an outer circumference surface (30b) of the negative electrode core (30) does not exceed 2/3 of the winding-direction length of the negative electrode composite layer (32a) formed on the inner circumference surface (30a) of the negative electrode core (30).
Absstract of: EP4597662A1
With respect to a nonaqueous electrolyte secondary battery according to the present disclosure, the positive electrode contains a lithium-containing composite oxide and a sulfonic acid compound that is present on the particle surfaces of the lithium-containing composite oxide; the sulfonic acid compound is represented by formula (I); the negative electrode comprises a negative electrode core body, a first negative electrode mixture layer that is arranged on the surface of the core body, and a second negative electrode mixture layer that is arranged on the surface of the first negative electrode mixture layer; the thickness T1 of the first negative electrode mixture layer and the thickness T2 of the second negative electrode mixture layer satisfy the relational expression 0.1 ≤ T1/(T1 + T2) ≤ 0.9; the first negative electrode mixture layer and the second negative electrode mixture layer each contain a negative electrode active material and a binder; the binder content C1 in the first negative electrode mixture layer and the binder content C2 in the second negative electrode mixture layer satisfy the relational expression C1 > C2. (In the formula, A represents a group 1 element or a group 2 element; R represents a hydrocarbon group; and n is 1 or 2.)
Absstract of: EP4597704A1
A secondary battery cell can be fixed to a battery holder with high reliability. Battery pack 100 includes a plurality of secondary battery cells 1 and battery holder 20 including a plurality of storage tubes 22 that respectively hold the plurality of secondary battery cells 1. Battery holder 20 is divided into at least first divided holder 21A and second divided holder 21B in the length direction of secondary battery cell 1, and first storage tube 22A of first divided holder 21A and second storage tube 22B of second divided holder 21B are joined to form a cell storage space for storing secondary battery cell 1. At least a part of second storage tube 22B has recess 24 formed on at least a part of the inner surface thereof, and adhesive 50 is interposed between recess 24 of storage tube 22 and secondary battery cell 1.
Absstract of: EP4597634A1
A binder composition for a non-aqueous secondary battery electrode contains a polymer X that includes an acidic group-containing monomer unit in a proportion of not less than 3 mass% and not more than 20 mass% and a repeating unit derived from an unsaturated monomer A in a proportion of not less than 5 mass% and less than 50 mass%. The unsaturated monomer A has a solubility in water of not less than 1 g/100 mL and not more than 15 g/100 mL and has a glass-transition temperature of 40°C or lower.
Absstract of: EP4597686A1
The present invention provides a saggar for an apparatus for recycling of waste secondary batteries, the saggar including a storage part input together with objects into the apparatus including a work part, wherein the storage part includes a body part and a mesh part coming into contact with the objects inside the body part, and a predetermined mixed gas input into the work part enters the storage part. According to the present invention, heat treatment efficiency can be maximized by making it easy to input a gas for heat treatment of waste secondary batteries, mass heat treatment of waste secondary batteries is possible, and multiple types of waste secondary batteries can be treated at once.
Absstract of: EP4597594A1
A system and a method for manufacturing an electrode assembly for a battery are provided. The system includes a first cutter configured to cut a first patterned electrode sheet to form a first electrode cut portion having a first length, a first sensor arrangement configured to generate a first cutting operation code and to acquire first position data reflecting positions on the first electrode sheet, a second cutter configured to cut a second patterned electrode sheet to form a second electrode cut portion having a second length, a second sensor arrangement configured to generate a second cutting operation code and to acquire second position data, a combinator configured to manufacture an electrode assembly by combining the first electrode cut portion and the second electrode cut portion with a separator interposed therebetween, and an identification information assigning device configured to assign identification information to the manufactured electrode assembly and associate the identification information with the first cutting operation code and the first position data, and with the second cutting operation code and the second position data.
Absstract of: WO2025114532A1
The present invention relates to a battery housing (10) for receiving at least one battery component, wherein the battery housing (10) has an outer wall (20), which at least partially surrounds a receiving volume (11), and a cooling device (30). The cooling device (30) has a base plate (40) having a first connecting surface (42) and a cover plate (50) having a second connecting surface (52), wherein the connecting surfaces (42, 52) of the base plate (40) and of the cover plate (50) are connected to each other with an integral bond at least in an edge region (60), which is formed circumferentially around the cooling device (30), in such a way that a fluid duct (70) is formed for conducting a cooling fluid between the base plate (40) and the cover plate (50). The cooling device (30) is connected to the battery housing (10) in such a way that the entire edge region (60) of the cooling device (30) is arranged within the outer wall (20) of the battery housing (10), and the cooling device (30) forms the housing base (12) of the battery housing (10). The battery housing (10) has at least one inner wall (80) which is connected to the outer wall (20), the inner wall (80) extending between two opposite wall sections of the outer wall (20), and the inner wall (80) of the battery housing (10) being at least partly connected to a cooling surface (51) of the cooling device (30), the cooling surface facing the receiving volume (11). The invention also relates to a battery having a battery h
Absstract of: EP4597596A1
A method of estimating an electrode density in secondary batteries according to one or more embodiments of the present disclosure includes: preparing an electrode comprising a current collector and first and second coating layers coated on the current collector; measuring first characteristic values of the electrode; removing the first coating layer of the electrode; measuring second characteristic values of the electrode from which the first coating layer has been removed; removing the second coating layer of the electrode from which the first coating layer has been removed; measuring third characteristic values of the electrode from which the first and second coating layer have been removed; and estimating at least one of a density of the first or second coating layer, a thickness of the current collector, or a weight of the current collector, based on the first characteristic values, the second characteristic values, and the third characteristic values.
Absstract of: EP4597683A1
The present disclosure relates to an electrode for a lithium secondary battery which not only effectively suppresses heat generation or ignition and thus has further improved stability, but also enables provision of batteries exhibiting excellent electrochemical characteristics, and a lithium secondary battery comprising the same.
Absstract of: EP4597137A1
A battery abnormality diagnosis apparatus according to an embodiment disclosed herein includes an obtaining unit configured to obtain voltage-state-of-charge (SOC) profiles of a plurality of battery units, an identifying unit configured to identify a designated first number of ranks of each of the plurality of battery units, based on the voltage-SOC profiles, and a diagnosing unit configured to diagnose abnormality of the plurality of battery units, based on changes of the ranks.
Absstract of: EP4597618A1
This negative electrode for alkaline secondary batteries comprises a negative electrode current collector and a negative electrode mixture that is supported by the negative electrode current collector. The negative electrode mixture contains a hydrogen storage alloy that has an Fe content of 200 to 900 ppm by mass, and a carbon black that has an Fe content of 1,000 to 2,800 ppm by mass.
Absstract of: EP4597701A1
A connector is fixed to a fixed member with waterproof structure while manufacturing cost is reduced. The waterproof structure of a connector includes fixed member 2 provided with connector insertion port 2A and a plurality of screw insertion ports 2B, connector 3 including a connector body 31 and flange part 32, screw receiving member 4 disposed facing a second surface of fixed member 2 and into which fixing screw 7 having passed through flange part 32 and fixed member 2 is screwed, packing member 5, and O-ring 6. Screw receiving member 4 includes a plurality of screw fixing parts 41 into which fixing screws 7 are screwed without passing through corresponding screw fixing parts 41, and coupler 42 that couples the plurality of screw fixing parts 41. The waterproof structure is formed in which O-ring 6 seals an opening of each of screw insertion ports 2B while fixing screw 7 having inserted through screw insertion hole 33 of flange part 32 and the corresponding one of the screw insertion ports 2B is screwed into corresponding one of screw fixing parts 41 with O-ring 6 interposed therebetween, and packing member 5 is sandwiched between flange part 32 and fixed member 2 to seal an opening of connector insertion port 2A with packing member 5.
Absstract of: EP4597668A1
In a non-aqueous electrolyte secondary battery according to the present disclosure, a positive electrode comprises a lithium-containing composite oxide, and a sulfonic acid compound which is represented by formula (I) and is present on a particle surface of the lithium-containing composite oxide, and a negative electrode mixture layer of a negative electrode includes first graphite particles having an internal porosity of at most 5% and second graphite particles having an internal porosity of 8% to 20%. A thickness T1 of a first negative electrode mixture layer facing a negative electrode core and a thickness T2 of a second negative electrode mixture layer facing the positive electrode satisfy 0.1≤T1/(T1+T2)≤0.9, and a ratio C1 of the first graphite particles to the total mass of the first and second graphite particles in the first negative electrode mixture layer, and a ratio C2 of the first graphite particles to the total mass of the first and second graphite particles in the second negative electrode mixture layer satisfy C1
Absstract of: EP4597731A1
Spring back is suppressed with a simple configuration. An electric device includes lead plate 30 including bent segment 32 bent along bend line 31, circuit board 3 electrically connected to bent segment 32 of lead plate 30, and holder 20 that holds lead plate 30. Holder 20 includes holder portions 26 that lock part of upper surfaces of bent segments 32. Holder portion 26 is configured to abut on and hold the part of the upper surface of bent segment 32 while the holder portion opposes a direction of spring back caused by bent segment 32 of lead plate 30 being bent along bend line 31. Circuit board 3 includes connection region 4 electrically connected to lead plate 30. Bent segment 32 is electrically connected to connection region 4.
Absstract of: GB2637780A
An electrode for an alkali metal ion secondary cell and its precursor composition with a polymer-electrolyte gel matrix phase, a dispersed phase comprising an electrochemically active material, and a conductive additive with a tubular carbon material as a majority component, preferably MWCNTs (multi-walled carbon nanotubes). The electrochemically active material may be a lithium transition metal oxide, preferably NMC. The electrode may be produced by processing the composition as a film or coating by thermal processing or extrusion. A method of manufacture and storage device are also described. The use of gel electrodes avoids the use of energetically expensive sacrificial solvents, and the use of tubular carbon improves electrochemical performance reducing the tortuosity values.
Absstract of: GB2637719A
A battery stack monitoring method for detecting occurrence of a thermal event in one or more battery stacks, comprising: receiving a signal indicative of a measured voltage in the one or more battery stacks; determining, in dependence on the measured voltage, whether a voltage-drop criterion is satisfied; and outputting, in dependence on the voltage-drop criterion being satisfied, a signal that a thermal event has occurred in the one or more battery stacks. The voltage drop criterion comprises a drop in the measured voltage exceeding a first threshold; and/or the measured voltage dropping below a second threshold. A battery stack monitoring system may comprise one or more processors collectively configured to perform the method. A battery storage system may comprise a plurality of battery stacks, a storage buffer for storing the stacks, one or more conveyors for moving the stacks in and out of the buffer, and the stack monitoring system.
Nº publicación: EP4597656A1 06/08/2025
Applicant:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Absstract of: EP4597656A1
A cylindrical secondary battery including an electrode assembly including a negative electrode plate and a positive electrode plate; a cylindrical can accommodating the electrode assembly and including a terminal hole in one side of the cylindrical can and an open inlet in another side of the cylindrical can; a terminal coupled to the cylindrical can through the terminal hole; and a negative electrode current collector in the cylindrical can and electrically connecting the cylindrical can to the negative electrode plate. The negative electrode current collector includes a notch groove or a cutting hole configured to be cut in response to an increase in pressure in the cylindrical can.
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