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1455
resultados
Última actualización
14/08/2025 [07:17:00]
Resultados 800 a 825 de 1455
Resumen de: 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.
Resumen de: 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
Resumen de: 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.
Resumen de: 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.
Resumen de: 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).
Resumen de: 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.)
Resumen de: 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.
Resumen de: 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.
Resumen de: EP4597702A1
The present invention relates to a battery module and a method for determining a center of a battery cell, and more particularly, to a battery module and a method for determining a center of a battery cell, in which a central position of the battery cell is capable of being contactlessly measured to prevent misalignment of the battery cell and prevent damage to the battery cell to improve quality of the battery module.The battery module according to the present invention is characterized by including a plurality of battery cells, and a battery cell case that accommodates the plurality of battery cells, wherein a central position of each of the plurality of battery cells in a longitudinal direction is marked on a surface of the battery cell.
Resumen de: EP4597719A1
Embodiments of this application provide an electrode assembly, a battery cell, a battery, an electric device, and a method for manufacturing a separator, and pertain to the field of battery technologies. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator, and the separator is disposed between the positive electrode plate and the negative electrode plate; and the separator includes a first section, a second section, and a third section arranged sequentially in a width direction of the separator, and a porosity of the second section is less than both a porosity of the first section and a porosity of the third section. The electrode assembly provided by the embodiments of this application includes a separator with different porosities in different sections, which can alleviate precipitation of metal ions in the electrode assembly.
Resumen de: 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.
Resumen de: 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.
Resumen de: 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
Resumen de: 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.
Resumen de: EP4597655A1
A rechargeable battery includes a wound-type electrode assembly, a heat pipe, a can, and a cap plate. The heat pipe is disposed inside of the electrode assembly at a distance from a wound center of the electrode assembly, and the heat pipe surrounds the wound center. The can includes an internal space in which the electrode assembly and the heat pipe are positioned. The cap plate is coupled to an end of an opening of the can to close and seal the can, the cap plate is connected heat pipe, and the cap plate is configured to provide dissipation of heat from the heat pipe.
Resumen de: EP4597521A2
The present invention relates to a ceramic solid electrolyte, which is a key component of an all-solid-state lithium secondary battery, for improving safety, and a method for synthesizing the same. The present invention relates to an oxide-based conductive ceramic of a new NASICON structure of the chemical formula Li1+xZr2XxP3-xO12 (X=Sn, Ge, or Y, 1.5≤ x≤2.3). The present invention relates to a method for manufacturing an oxide-based conductive ceramic having the above novel NASICON structure.
Resumen de: EP4597629A2
The energy storage apparatus includes an electrode assembly, including a positive electrode sheet, a negative electrode sheet, and a separator. The positive electrode sheet includes a current collector and an active material layer. The active material layer includes a first lithium-containing compound and a second lithium-containing compound being a lithium-supplement particle and including a lithium-supplement core and an outer shell. A connection area and a separation area are formed between the lithium-supplement core and the outer shell. The ratio of the path length of the outer shell of the lithium-supplement particle in the connection area to the total circumference of the outer shell within a cross-section of the positive electrode sheet is greater than or equal to 5% and less than or equal to 45%.
Resumen de: EP4597134A1
The apparatus for diagnosing a battery according to the present disclosure includes a profile obtaining unit configured to obtain a battery profile representing a correspondence relationship between voltage and capacity of a battery; and a control unit configured to divide a capacity range of the battery profile into a plurality of sections, derive a target value for any one of one or more target indicators among a plurality of diagnostic indicators preset in each section, compare a correspondence relationship between the derived plurality of target values with one or more reference profile preset to represent a correspondence relationship between the plurality of target indicators, and diagnose a state of the battery based on the comparison result.
Resumen de: EP4597133A1
The apparatus for diagnosing a battery according to the present disclosure includes a profile obtaining unit configured to obtain a battery profile representing a correspondence relationship between voltage and capacity of a battery; a profile adjusting unit configured to adjust a preset reference positive electrode profile and a reference negative electrode profile to correspond to the battery profile to generate an adjusted positive electrode profile and an adjusted negative electrode profile; and a control unit configured to extract a diagnostic factor for the battery from at least one of the adjusted positive electrode profile and the adjusted negative electrode profile and diagnose a state of the battery based on the extracted diagnostic factor.
Resumen de: EP4596194A2
Disclosed is a battery cutting apparatus, including a carrying assembly, a first cutter assembly, a first driving assembly, a second cutter assembly and a second driving assembly. The carrying assembly is configured to carry a battery to be cut. The first driving assembly is in transmission connection with at least one of the first cutter assembly and the carrying assembly and configured to make them move relative to each other along a first direction. The second driving assembly is in transmission connection with at least one of the second cutter assembly and the carrying assembly and configured to make them move relative to each other along a second direction perpendicular to the first direction. At least one of the first and second cutter assembly is a pressing and cutting cutter assembly, which is configured to be able to press and break the housing of the battery.
Resumen de: EP4596113A1
Disclosed is a slot die coater for improving profiles of edges of an electrode active material layer.A slot die coater according to the present disclosure includes: an upper die block, a middle die block, and a lower die block; an upper shim provided between the upper die block and the middle die block to form an upper slot; and a lower shim provided between the middle die block and the lower die block to form a lower slot, wherein a first coating liquid is discharged through an upper outlet communicating with the upper slot and applied onto a base material, and a second coating liquid is discharged through a lower outlet communicating with the lower slot and applied onto the base material, wherein the upper shim includes at least one first opening, wherein the lower shim includes a second opening at a position corresponding to the first opening, and wherein the second opening includes a section having a smaller width than the first opening at a front end adjacent to the lower outlet.
Resumen de: EP4597732A1
A busbar module (5) includes a case (6) that is assembled to a battery module (2), and a flexible substrate (7) that is held in the case (6). A main body (71) of the flexible substrate (7) includes a trunk portion (711), and a branch portion (712) branched from the trunk portion (711). Meanwhile, the case (6) includes a trunk holding portion (61), a branch holding portion (62) that is positioned closer to the battery module (2) side than the trunk holding portion (61), and a connecting wall (63) that connects the trunk holding portion (61) and the branch holding portion (62). The trunk holding portion (61), the branch holding portion (62), and the connecting wall (63) form a stepped portion. Further, the branch portion (712) includes a curved portion (7122) that curves smoothly in a connecting portion with the trunk portion (711). A holding portion (64) that holds the main body (71) in a state in which a curved shape of the curved portion (7122) is maintained is formed in the case (6).
Resumen de: EP4597788A1
This application provides a battery pack. The battery pack includes a battery unit, a switch unit, a power balancing circuit, and a sampling circuit. The battery unit includes N electrochemical cells that are connected in series, and the switch unit includes N+1 switches, where N is an integer greater than or equal to 2. First ends of any two adjacent switches in the N+1 switches are respectively connected to two ends of one of the N electrochemical cells, and second ends of the any two adjacent switches are respectively connected to a first end and a second end of the switch unit. Both the sampling circuit and the power balancing circuit are connected to the first end and the second end of the switch unit. The sampling circuit is configured to obtain a power parameter of each of the N electrochemical cells by turning on or off the N+1 switches. The power balancing circuit is configured to perform power balancing on at least one electrochemical cell in the N electrochemical cells based on the N power parameters obtained by the sampling circuit, so that a power difference between the N electrochemical cells is reduced after the at least one electrochemical cell is charged or discharged, an inconsistency between the electrochemical cells is reduced, and a service life of the battery pack is improved.
Resumen de: EP4597612A1
A positive electrode active material includes: (a) a first positive electrode active material, including a layered lithium nickel-manganese-based composite oxide, in a form of single particles; and (b) a second positive electrode active material, including a lithium-manganese-rich composite oxide, in which a molar ratio of lithium to a total metal content of the lithium-manganese-rich composite excluding lithium is about 1.1 to about 3 and a manganese content based on 100 mol% of the total metal content of the lithium-manganese-rich composite excluding lithium is greater than or equal to about 60 mol%, the second positive electrode active material being in a form of single particles. Also disclosed are a positive electrode and a rechargeable lithium battery, each using the positive electrode active material.
Nº publicación: EP4597611A1 06/08/2025
Solicitante:
SAMSUNG SDI CO LTD [KR]
SAMSUNG SDI CO., LTD
Resumen de: EP4597611A1
A positive electrode active material includes: (a) a first positive electrode active material, including a first layered lithium nickel-manganese-based composite oxide, in a form of secondary particles in which a plurality of primary particles are agglomerated; (b) a second positive electrode active material, including a second layered lithium nickel-manganese-based composite oxide, the second positive electrode active material having a smaller average particle diameter (D<sub>50</sub>) than the first positive electrode active material, and the second positive electrode active material being in a form of single particles; and (c) a third positive electrode active material, including a lithium-manganese-rich composite oxide, in which a molar ratio of lithium to a total metal content of the lithium-manganese-rich composite oxide excluding lithium is about 1.1 to about 3 and a manganese content based on 100 mol% of the total metal content of the lithium-manganese-rich composite oxide excluding lithium is greater than or equal to about 60 mol%, the third positive electrode active material being in a form of single particles. Also disclosed are a positive electrode and a rechargeable lithium battery, each using the positive electrode active material
BOPI
Sede Electrónica
