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575
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Updated on
14/09/2026 [07:52:00]
Results 550 to 575 of 575
Absstract of: EP4804285A1
The present application is applicable to the technical field of battery production devices, and provides a winding device and a battery manufacturing device. The winding device (100) comprises: a laminating mechanism (10) used for unwinding a first electrode sheet (210), a first separator (220), and a second electrode sheet (230), and pressing the first electrode sheet (210), the first separator (220), and the second electrode sheet (230) to form a compounding sheet (250); a separator unwinding mechanism (20) used for unwinding a second separator (240); and a winding mechanism (30) provided on a discharging side of the laminating mechanism (10), the winding mechanism (30) being used for winding the compounding sheet (250) and the second separator (240) to form an electrode assembly (200). The winding device provided by the embodiments of the present application has reasonable layout, and the problem of the crowded space above the winding mechanism is solved.
Absstract of: EP4804286A1
Disclosed in the present application are a winding needle (10), a winding device (1000) and a battery processing system. The winding needle comprises: an inner needle (11); at least two outer needles (12), which surround the inner needle along the circumference of the inner needle, and are movably arranged on the circumferential side of the inner needle in the radial direction of the inner needle; and a first structural member (13), which abuts against the outer needles, and can move relative to the outer needles in the axial direction of the inner needle to push the outer needles away from the inner needle in the radial direction of the inner needle. In the winding needle of the present application, the first structural member pushes the outer needles away from the inner needle in the radial direction of the inner needle, thereby achieving the effect of expanding the outer diameter of the winding needle; and the first structural member can be disengaged from the outer needles, and then an electrode assembly can apply pressure to the winding needle to enable the outer needles to move close to the inner needle in the radial direction of the inner needle, thereby achieving the effect of reducing the outer diameter of the winding needle. In this way, the outer diameter of the winding needle can be increased or decreased, so that the outer diameter of the winding needle can be adjusted during the winding process of the electrode assembly, thereby reducing the tab misalignment.
Absstract of: EP4804284A1
In the present invention, a cylindrical battery (10) comprises: an electrode body (14) in which a positive electrode (11) and a negative electrode (12) are disposed with a separator (13) interposed therebetween; and an outer can (16) that accommodates the electrode body (14). The negative electrode (12) has a first end constituting a lower end section and a second end constituting an upper end section in the axial direction (negative electrode width direction) which is a first direction. In the negative electrode (12), a current is collected from the first end side, and one or more notches (46) are provided at the second end. The electrode body (14) may be a wound electrode body in which the strip-shaped positive electrode (11) and the strip-shaped negative electrode (12) are wound with the separator (13) interposed therebetween.
Absstract of: EP4804262A1
This power storage device (10) comprises a power storage cell (20) that is comprised of a positive electrode (21), a negative electrode (22), a separator (23), and a sealing part (24) that forms a sealed space for housing a liquid electrolyte between the positive electrode (21) and the negative electrode (22). The positive electrode (21) has a positive electrode active material layer (21b) that is formed on a first surface (21a1) of a positive electrode current collector (21a). The first surface (21a1) of the positive electrode current collector (21a) is formed of aluminum. The sealing part (24) is formed of an acid-modified polyolefin resin, and is bonded to the first surface (21a1) of the positive electrode current collector (21a). The positive electrode (21) comprises a carbon coating layer (M) that is provided, at a bonded portion with the sealing part (24), on the first surface (21a1) of the positive electrode current collector (21a). The carbon coating layer (M) contains carbon particles and a coating layer binding agent. The basis weight of the carbon coating layer M is 0.2 g/m2 or more.
Absstract of: EP4804269A1
A non-aqueous electrolyte secondary battery (10) disclosed herein includes a positive electrode (11), a negative electrode (12) that includes a negative electrode mixture layer, and a non-aqueous electrolyte. The negative electrode mixture layer contains the negative electrode active material and the binder component. The binder component includes a binder compound and a chelating agent. The negative electrode active material includes a silicon-containing material. The non-aqueous electrolyte contains the polyvalent cation.
Absstract of: EP4804309A1
0001 A sealed battery (10) comprises an electrode body, an outer can (20), a sealing body (19), and a gasket (30) interposed between the outer can and the sealing body. The gasket has a protruding portion (31) that protrudes radially inward of the radially inner end of a radially bent portion (20c) that is formed at an opening-side end portion of the outer can and is bent radially inward. A cutout (32) which is continuous on at least a portion of the circumferential direction of the axially outer surface of the protruding portion and has a width in the radial direction so as to include a tip (37) of the protruding portion is formed. The axial thickness of the part of the protruding portion where the cutout is formed is smaller than the thickness of a part of the gasket that is adjacent to the radially outer side of the cutout.
Absstract of: EP4804283A1
0001 A battery (10) comprises: an electrode body (14) in which a strip-shaped positive electrode (11) and a strip-shaped negative electrode (12) are wound with a strip-shaped separator (13) interposed therebetween; an outer can (16) that accommodates the electrode body (14) and includes a cylindrical section (30); and a sealing body (17) that closes an opening of the outer can (16). The negative electrode (13) has a first end and a second end in the axial direction of the electrode body (14), and the negative electrode (12) undergoes current collection on the first end side, and either includes a dispersion section in which sections of the second end that are neighboring in the radial direction are directly joined to or in contact with each other, or includes a dispersion section in which the same are indirectly joined to or in contact with each other via a second upper current collector plate (19) that is conductive.
Absstract of: EP4804259A1
0001 The present application discloses a negative electrode current collector, a battery cell, a battery, and an electric apparatus. The negative electrode current collector includes a substrate and an alloy layer located on at least one side of the substrate, where the alloy layer includes a first metal element and a second metal element, the substrate includes a third metal element, the nucleation overpotential of the elemental form of the second metal element is less than the nucleation overpotential of the elemental form of the first metal element, the nucleation overpotential for lithium metal on the elemental form of the first metal element is greater than or equal to 0.10 V, and the nucleation overpotential of the elemental form of the second metal element is less than the nucleation overpotential of the elemental form of the third metal element. The present application enables the battery to have high coulombic efficiency, high reliability, and long cycle life.
Absstract of: EP4804277A1
0001 Provided is a nonaqueous electrolyte solution for a secondary battery which is excellent in electric capacity retention characteristics and favorably suppresses an increase in internal resistance when a secondary battery used at a high voltage is stored in a high-temperature environment, and exhibits favorable electric capacity retention characteristics even when such a secondary battery is repeatedly charged and discharged at a high charge voltage after storage in a high-temperature environment, and a secondary battery provided the same. The nonaqueous electrolyte solution for a secondary battery of the present invention contains an electrolyte and a nonaqueous solvent, and further contains at least one fluorophosphate represented by Chemical Formula (1) as an additive:
wherein M<+> represents an alkali metal ion, R<1> to R<5> each independently represent a hydrogen atom, a hydrocarbon group having 1 to 10 carbon atoms, and the like, or R<1> to R<5> each independently represent any of a hydrocarbon group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, and the like, and optionally selected combinations are bonded to each other to form a cyclic structure, and n represents an integer of 0 to 10.
Absstract of: EP4804213A1
0001 To provide a method for producing a sulfide solid electrolyte having high water resistance, and the like. A method for producing a sulfide solid electrolyte, comprising a step of subjecting a sulfide solid electrolyte to at least one treatment selected from the group consisting of a mixing treatment and a disintegration treatment in a solvent, wherein the solvent comprises an aprotic solvent containing an oxygen atom.
Absstract of: US20250149538A1
A lithium-ion battery includes an electrode with microscale channels formed in the electrode material and a nanoscale conformal coating over the electrode material. The channels promote Li-ion transport to the interior of the electrode during charging, and the coating acts as an artificial solid electrolyte interphase (SEI) in place of the SEI that is typically formed during initial charge cycles of a Li-ion battery. The coating can be selected to have a lower impedance than a naturally formed SEI and can be formed in a more controlled manner prior to cell assembly. Cold-charging performance of the resulting battery is enhanced more than would be expected by the individual contributions of the channels and the coating.
Absstract of: EP4804250A1
Disclosed herein are an all-solid-state secondary battery and a method of manufacturing the same, the all-solid-state secondary battery including: a cathode layer; an anode layer; and a solid electrolyte layer disposed between the cathode layer and the anode layer, wherein the cathode layer includes a cathode current collector and a cathode active material layer disposed on one or both sides of the cathode current collector, the cathode active material layer includes a composite cathode active material, the composite cathode active material includes a composite of M2S, an alkali metal salt, an inorganic electronic conductive structure, and a metal conductive material, where M is an alkali metal, and the alkali metal is Li or Na, an electronic conductivity of the inorganic electronic conductive structure is 1 x 10-3 S/cm or more, the composite includes a solid solution of M2S and an alkali metal salt, and a ratio of length/thickness of the metal conductive material is 2 or more.
Absstract of: EP4804261A1
0001 This secondary battery comprises: a wound electrode body (14) in which a positive electrode and a negative electrode (12) are wound via a separator; and a cylindrical outer can that houses the electrode body (14). A belt-shaped tape (50) for fixing a winding end is adhered to the outer peripheral surface of the electrode body (14). The tape (50) is adhered so that: the tape (50) does not overlap itself in the thickness direction of the tape (50); and both ends (51, 52) of the tape (50) in the length direction overlap each other in the axial direction of the electrode body (14).
Absstract of: EP4804273A1
According to the present disclosure, there is provided a sulfide-based solid electrolyte including a Li-P-S-based compound having an anionic lattice structure represented by P1-bMbS4-aSea3-.
Absstract of: EP4804303A1
Provided is a cylindrical nonaqueous electrolyte secondary battery for which corrosion of an opening end of an outer can is suppressed. A cylindrical nonaqueous electrolyte secondary battery as an example embodiment of this invention includes: an outer can having a bottomed cylindrical shape and a groove part at an opening part; a nonaqueous electrolyte and an electrode body housed in the outer can; and a sealing body closing the opening part of the outer can. The electrode body has a winding structure. A tape for fixing a winding end of the electrode body is stuck to an outer peripheral surface of the electrode body. The tape has an extended part that extends out from an end on the groove part side of the outer peripheral surface. The extended part contacts the groove part and absorbs the nonaqueous electrolyte.
Absstract of: EP4804308A1
0001 This hermetically sealed battery includes an electrode body, an exterior can (16), a sealing body, and a gasket (28) interposed between the exterior can and the sealing body. The sealing body is swaged and fixed to the opening-side end of the exterior can via the gasket. The gasket has a cylindrical body part (50) and a protrusion (54) protruding over the entire circumference from the outer peripheral surface of the body part to the outside in the radial direction. The protrusion is elastically bent outward in the axial direction so that the tip approaches the outer peripheral surface of the body part in a state in which the inner peripheral surface of a cylindrical part provided at the opening-side end part of the exterior can is pressed toward the outside in the radial direction.
Absstract of: EP4804318A1
A battery cell (100), a battery (200) and an electric device (1000). The battery cell (100) includes a housing (10), a shielding member (20) and a pressing member (30), where the housing (10) is provided with a first wall (11), the first wall (11) being provided with a weak part (110); the shielding member (20) is disposed in the housing (10), and in the direction of the thickness h of the first wall (11), the shielding member (20) covers at least part of the weak part (110); the pressing member (30) is located on the side of the shielding member (20) facing away from the first wall (11), the pressing member (30) pressing against the shielding member (20).
Absstract of: EP4804290A1
0001 The present disclosure provides a liquid cooling assembly, a battery module, and a battery pack. The liquid cooling assembly includes a plurality of liquid cooling units arranged at even intervals. Each of the plurality of liquid cooling units is provided with a delivery pipe body, a pipe snap-fit base part, a pipe snap-fit assembly part, and a liquid cooling plate detachably connected to the delivery pipe body. The pipe snap-fit base part and the pipe snap-fit assembly part are disposed at two ends of the delivery pipe body, respectively. For two adjacent liquid cooling units of the plurality of liquid cooling units, the pipe snap-fit base part of one of the two adjacent liquid cooling units is in snap-fit engagement with the pipe snap-fit assembly part of the other one of the two adjacent liquid cooling units.
Absstract of: WO2025093437A1
Process for coating a cathode active material for lithium-ion batteries wherein said cathode active material comprises at least 50 mol-% nickel, referring to metals other than lithium, wherein said process comprises the steps of: (a) providing a cathode active material according to the general formula Li1+xTM1-xO2 wherein x is in the range of from zero to 0.2, TM is a combination of metals of which at least 95 mol-% are transition metals, and at least 50 mol-% of TM is nickel, and TM contains at least one of cobalt and manganese, (b) combining said cathode active material with an anhydrous solution of Zr(OR1)4, wherein R1 are same or differ- ent and selected from C2-C4-alkyl, straight chain or branched, (c) adding LiOH∙y H2O, wherein y is in the range of from 0.5 to 3.0, (d) removing the solvent(s), (e) treating the residue thermally at a temperature in the range of from 300 to 450°C.
Absstract of: EP4804299A1
This cylindrical secondary battery (10) includes an electrode group (14), a current collector which is connected to the electrode group, a sealing body (19) which is disposed on the upper side of the electrode group and to which the current collector is connected, and a bottomed cylindrical battery can (20) which houses the electrode group. The sealing body is fixed to the inside of the opening-side end of the battery can in the axial direction, and closes the opening of the battery can. A cap (40) is attached to the opening-side end of the battery can. The cap has: a cylinder part (41) which has a female screw (43) on the inner peripheral surface; and a pressing plate part (42) that is continuous with one end of the cylinder part and is pressed against the outer side of the opening-side end of the battery can in the axial direction. The battery can has a male screw (53) on the outer peripheral surface. The battery can and the cap are screw-coupled with each other by means of the female screw and the male screw.
Absstract of: EP4804326A1
This cylindrical battery comprises: a winding-type electrode body (14); an outer can that has a bottomed cylindrical shape and that accommodates the electrode body (14); and a sealing body that closes the opening of the outer can, wherein a plurality of positive electrode leads connected to a positive electrode (11) of the electrode body (14) are included. The plurality of positive electrode leads include a main lead (20a) and two or more sub leads (20b, 20c). The main lead (20a) is connected to the sealing body, and the sub leads (20b, 20c) are connected to the main lead (20a) at a location away from the connection part between the main lead (20a) and the sealing body.
Absstract of: EP4804254A1
The present invention relates to a high-density positive electrode active material precursor, a method for manufacturing the positive electrode active material precursor, a high-density positive electrode active material, and a method for manufacturing the positive electrode active material, and provides a positive electrode active material precursor comprising: a manganese-nickel-based hydroxide including manganese and nickel, wherein the manganese-nickel-based hydroxide includes a porous core part (A); a first shell part (A1) formed on the core part; and a porous second shell part (A2) formed on the first shell part, wherein the first shell part (A1) has a thickness satisfying Equation 1 described herein, and wherein the positive electrode active material precursor has a tap density of 1.75 g/cm3 to 2.0 g/cm3 and a BET specific surface area of 18 m2/g to 25 m2/g, a method for manufacturing the same, a positive electrode active material manufactured using the same, and a method for manufacturing the positive electrode active material using the same.
Absstract of: EP4804502A1
0001 An electronic device according to one embodiment of the present disclosure may comprise: a housing; and a battery assembly which is disposed in the housing, and which includes a battery cell and a cover member disposed to encompass at least a portion of the battery cell. The cover member of the battery assembly can include: a main cover portion which is disposed to encompass the front surface of the battery cell and which includes an inner surface facing the battery cell and an outer surface opposite to the inner surface; a first cover portion which extends from the main cover portion, and which is disposed to encompass from the edge of one side of the battery cell to a portion of the front surface of the battery cell; and a second cover portion which extends from the main cover portion, and which is disposed to encompass from the edge of the other side of the battery cell to the portion of the front surface of the battery cell. A first adhesive area of the first cover portion and a second adhesive area of the second cover portion can be attached to the front surface of the battery cell. When viewing the front surface of the battery assembly, the first cover portion and the second cover portion can be spaced apart from each other.
Absstract of: WO2025122603A1
Disclosed is an improved non-continuous and water-based adhesive coating containing large polymeric particles or agglomerate with an average particle size (D50) greater than 5 microns. The coating may be applied onto one or both sides of a porous film. A method of forming the coating involves applying an aqueous slurry containing the large polymeric particles with a D50 greater than 5 microns onto a porous membrane. The method of application may be a spray coating method.
Nº publicación: FR3172698A1 04/09/2026
Applicant:
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES [FR]
COMMISSARIAT A L' ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Absstract of: FR3172698A1
Utilisation d’une électrode de référence dans une cellule à électrolyte solide Utilisation, à titre d’électrode de référence (4) dans une cellule à électrolyte solide (100) pour système de stockage électrochimique tout solide, tel que des batteries lithium-ion, sodium-ion, potassium-ion, magnésium-ion, calcium-ion ; des batteries lithium-métal, sodium-métal, potassium-métal, magnésium-métal, calcium-métal ; des batteries lithium-soufre ou lithium-air ; et des supercondensateurs, d’une électrode à base d’un matériau actif comprenant : au moins un composé électro-actif sous sa forme totalement réduite, et dont la réaction rédox associée présente un potentiel électrochimique constant pour des états de charge intermédiaire ;au moins ledit composé électro-actif sous sa forme totalement oxydée, les formes réduite et oxydée dudit composé électro-actif étant dans des proportions ajustées pour obtenir un composé électro-actif dont la composition correspond à un état de charge intermédiaire, et au moins un matériau solide conducteur ionique. Figure pour l’abrégé : Fig.2
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