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1089
results.
Updated on
22/08/2026 [07:48:00]
Results 925 to 950 of 1089
Absstract of: WO2026166257A1
The present invention relates to the field of secondary batteries. Provided are a lithium secondary battery, a negative electrode active material and a preparation method therefor, and an electric device. The lithium secondary battery comprises a positive electrode sheet, an electrolyte and a negative electrode sheet, wherein the negative electrode sheet comprises a silicon-carbon material; the silicon-carbon material comprises a carbon material, and a silicon material and a lithium-containing substance that are distributed inside the carbon material; and the carbon material further comprises oxygen, which forms a C-O group and a C=O group together with the carbon material, the amount of substance of the C-O group is n1, the amount of substance of the C=O group is n2, and n2/(n1+n2)×100%=55%-65%. The lithium secondary battery has good initial efficiency and cycle performance.
Absstract of: US20260237787A1
A superbeam assembly for a battery cell assembly includes a left coolant passage plate including a left section defining a left stamped channel section, a right section defining a right stamped channel section, a left inner channel surface, and a left outer channel surface. The superbeam assembly includes a right coolant passage plate including a right section defining a right stamped channel section, a right section defining a right stamped channel section, a right inner channel surface, and a right outer channel surface. A channel profile defined by the left stamped channel section of the left coolant passage plate is a mirror image of the right stamped channel section of the right coolant passage plate and a channel profile defined by the right stamped channel section of the left coolant passage plate is a mirror image of the left stamped channel section of the right coolant passage plate.
Absstract of: US20260237641A1
0000 An electrode includes a current collector foil and a cathode layer, in which the cathode layer is disposed on a surface of the current collector foil, the positive electrode layer contains a cathode active material, the cathode active material contains non-spherical particles, the non-spherical particles contain an olivine phosphate compound, and circularity of the non-spherical particles is 0.50 or less.
Absstract of: WO2026169045A1
The present invention relates to a method for regenerating a cathode active material and a regenerated cathode active material regenerated thereby and, more specifically, to a method for regenerating a cathode active material, comprising the steps of: detaching a cathode active material from a waste cathode through heat treatment at a predetermined temperature; and milling the recovered cathode active material. Accordingly, the regenerated cathode active material may have a reduced specific surface area and reduced impurities derived from a coating agent such as carbon, and excellent electrical conductivity, and may provide excellent coating properties by lowering the viscosity of an electrode slurry comprising the regenerated cathode active material. When applied to a secondary battery, the cathode active material provides excellent battery characteristics, does not use a strong acid or an organic solvent and is therefore eco-friendly, and greatly improves economic feasibility and productivity since, through a simple process, the cathode active material can be regenerated as it is without decomposition of the cathode active material.
Absstract of: US20260237800A1
A rechargeable battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator, a case accommodating the electrode assembly therein, a linear welding portion extending across a first surface among a plurality of surfaces of the case along a first direction, the linear welding portion having two sides, and a protruding extension on at least one of the two sides of the linear welding portion along a second direction crossing the first direction, the protruding extension protruding from the first surface and extending along the first direction.
Absstract of: WO2026165754A1
A battery cell and an electric apparatus. The battery cell comprises a battery cell casing, an electrode assembly, and a tab assembly, wherein the battery cell casing comprises a main body portion and a sealing portion; the electrode assembly is arranged in the main body portion; and the tab assembly comprises a tab and two pieces of insulating adhesive, the tab being connected to the electrode assembly and extending from the sealing portion, in the direction of thickness of the tab, the tab being arranged between the two pieces of insulating adhesive, and the insulating adhesive connecting the battery cell casing to the tab. At 25°C, the tensile force between the insulating adhesive and the battery cell casing and/or the tab ranges from 5 N/mm to 10 N/mm, thereby improving the packaging tensile force of the insulating adhesive under room temperature conditions and improving the packaging reliability of the battery cell under room temperature conditions; and at 120°C, the tensile force between the insulating adhesive and the battery cell casing and/or the tab ranges from 0.01 N/mm to 0.2 N/mm, thereby facilitating the rapid formation of a pressure relief channel after the battery cell expands, improving the heat dissipation efficiency and thus improving the safety performance of the battery cell.
Absstract of: WO2026168818A1
An insulating tape according to an embodiment of the present invention comprises: a first region attached to a side surface of an electrode assembly; and a second region attached to a partial region of a first current collecting plate, wherein the second region has a plurality of hole blocking prevention grooves corresponding to alignment holes of the first current collecting plate.
Absstract of: DE102025105462A1
Ein Verfahren zur Herstellung von positiven Elektrodenpartikeln, auf die unter Verwendung von Vorläufern Keramikpartikel und eine kontinuierliche Glasphasenschicht aufgetragen sind umfasst die folgenden Schritte: Vermischung einer Nickelquelle, einer Manganquelle, einer Kobaltquelle und eines ersten Dispersionsmittels, um eine Nickel-Kobalt-Mangan-Mischaufschlämmung zu bilden; dann Durchführung einer Trocknung und Sinterung der Nickel-Kobalt-Mangan-Mischaufschlämmung, um einen Nickel-Kobalt-Mangan-Vorläufer zu erhalten; dann Vermischung einer Lithiumquelle, eines glasartigen Leitervorläufers, eines LLZO-Vorläufers und eines zweiten Dispersionsmittels, um eine erste Vorläufermassenaufschlämmung zu bilden; dann Vermischung des Nickel-Kobalt-Mangan-Vorläufers und eines dritten Dispersionsmittels, um eine zweite Vorläufermassenaufschlämmung zu bilden und Vermischung der zweiten Vorläufermassenaufschlämmung mit der ersten Vorläufermassenaufschlämmung, um eine dritte Vorläufermassenaufschlämmung zu bilden; dann Trocknung der dritten Vorläufermassenaufschlämmung, um ein Vorläuferpulver zu erhalten; und anschließende Sinterung des Vorläuferpulvers, um die mit LLZO-Partikeln und einer Glasphasenschicht beschichteten positiven Elektrodenpartikel zu erhalten.
Absstract of: WO2026168319A1
This negative electrode for a lithium-ion secondary battery comprises a negative electrode collector (32) and a negative electrode active material layer (34) that is in contact with at least one surface of the negative electrode collector (32). The negative electrode current collector (32) has a current collector layer (321) and a carbon coat layer (322). The carbon coat layer (322) is between the current collector layer (321) and the negative electrode active material layer (34). The thickness of the carbon coating layer (322) is 0.2 to 2.0 μm. The negative electrode active material layer (34) has a negative electrode active material containing silicon, and an organic additive containing diaminodiphenylmethane in the structure.
Absstract of: US20260237684A1
0000 A collector for a bipolar secondary battery includes a conductive filler and a resin binder, in which the conductive filler has at least one form selected from the group consisting of a spike-shaped form, a structure-shaped form, and a sphere-shaped form, and has a D<90 >of 1.7 times or more and less than 5.2 times a thickness of a matrix that disperses and holds the conductive filler in the collector.
Absstract of: WO2026168524A1
A battery pack (10) comprises a battery cell (100) and a housing (200) that houses the battery cell (100). The housing (200) has: a seal (240) that includes a second extending portion (240b), a fourth extending portion (240d), and an oblique extending portion (240f) which extend obliquely with respect to each other; and an inner wall (223a) and outer wall (223b) that are respectively positioned on both sides of the seal (240). The inner wall (223a) and the outer wall (223b) are disposed substantially parallel to the second extending portion (240b), the fourth extending portion (240d), and the oblique extending portion (240f).
Absstract of: DE102025105032A1
Die Erfindung betrifft ein Verfahren zum Laden eines wiederaufladbaren Energiespeichers (23) eines elektronischen Geräts (6) über eine Ladeschnittstelle (14), wobei zu Beginn eines Ladevorgangs eine hinterlegte Ladespannung (VCI) an die Ladeschnittstelle (14) angelegt wird, wobei während eines Ladevorgangs ein durch die Ladeschnittstelle (14) fließender Ladestrom (ICI) erfasst wird, wobei anhand des erfassten Ladestroms (ICI) ein aktueller Ladezustand (ODBR, FAST, NORM, TERM) des Energiespeichers (23) bestimmt wird, wobei für den bestimmten Ladezustand (ODBR, FAST, NORM, TERM) ein Spannungsniveau (VCI, FAST, VCI, NORM, VCI,ODBR,VCI,TERM) für die Ladespannung (VCI) bestimmt wird, und wobei die Ladespannung (VCI) auf das bestimmte Spannungsniveau (VCI,FAST, VCI,NORM, VCI,ODBR, VCI,TERM) eingestellt wird.
Absstract of: WO2026168814A1
The present invention provides a battery cell comprising: a battery can; an electrode assembly accommodated through an opening of the battery can and having a first electrode, a second electrode, and a separator interposed therebetween, which are wound around a winding axis; a cap covering the opening of the battery can; and an insulator which is arranged between one end of the electrode assembly in the winding axis direction and a bottom member, has a central hole formed along the central axis direction, and includes at least one central hole expansion part that is formed radially outward from the central hole along the circumferential direction and has a point at which stress is concentrated, on at least one side in the circumferential direction.
Absstract of: WO2026168796A1
A battery container is disclosed. The battery container according to an embodiment of the present invention may comprise: a base panel assembly; guide pipes provided on the upper surface of the base panel assembly and communicating with the interior of the base panel assembly; container modules installed on the base panel assembly, each container module having first connection holes into which the guide pipes are inserted; and cables, each having a first portion disposed inside the base panel assembly and a second portion passing through one of the guide pipes.
Absstract of: WO2026168696A1
A battery unit according to an embodiment of the present invention comprises: a cell assembly including a plurality of battery cells; a frame for accommodating the cell assembly; and a heat-resistant sheet covering one side surface of the frame and having a venting part, wherein the venting part includes a trim portion and a parting line portion, and the trim portion has a higher venting gas opening level than the parting line portion.
Absstract of: WO2026168613A1
Provided is an exterior material for a power storage device, the material being composed of a laminate that includes in the following order, at least a substrate layer, a barrier layer, and a heat-fusible resin layer from the outside, wherein: the substrate layer contains at least one among polyester and polyamide; the substrate layer has a thickness of at least 40 μm; the barrier layer contains an aluminum alloy foil; the aluminum alloy foil has a thickness of at least 55 μm; and the laminate has an orientation coefficient X of at most 1.30 according to the following measurement. (Measurement) For the laminate, four types of test samples are prepared, each having a length of 100 mm in the MD direction, the TD direction, the 45° direction between MD and TD, and the −45° direction between MD and TD, and having a width, orthogonal to the length direction, of 15 mm. A tensile test is performed on the test samples under conditions of 25 °C, a tensile speed of 300 mm/min, and a chuck-to-chuck distance of 30 mm. The tensile strength at a displacement of 100% in the length direction is measured. The orientation coefficient X is calculated by dividing the maximum tensile strength (MPa) by the minimum tensile strength (MPa) among the tensile strengths.
Absstract of: WO2026168081A1
This negative electrode (20) for a lithium ion secondary battery comprises a negative electrode collector (32) and a negative electrode active material layer (34) that is in contact with at least one surface of the negative electrode collector (32). In a cross section intersecting the plane in which the negative electrode collector (32) extends, the negative electrode collector (32) has an average crystallite size of 1.0-10.0 µm and an average aspect ratio of 2.0-15.0. The negative electrode active material layer (34) contains composite particles. The composite particles include amorphous carbonaceous particles and amorphous silicon particles having an average primary particle size of 1-50 nm. The composite particles are at least partially covered by a Na-containing layer that contains Na.
Absstract of: WO2026168823A1
An electrode grinding device according to the present invention is configured to grind an active material mixture, and comprises: a cyclone configured such that a negative pressure is formed and having a cyclone outlet capable of discharging the ground active material mixture; an intermediate hopper communicating with the cyclone outlet and capable of accommodating the ground active material mixture therein; and a valve configured to open or close the intermediate hopper.
Absstract of: WO2026169022A1
An electrode manufacturing device for a secondary battery according to an embodiment of the present invention comprises: a first lamination roller for laminating a first release film on one surface of a metal foil; a second lamination roller for laminating a second release film on the other surface of the metal foil; a notching member for notching the metal foil on which the first release film and the second release film are laminated; a first winding member for winding the first release film separated from the metal foil; a second winding member for winding the second release film separated from the metal foil; a third lamination roller for laminating a third release film on the metal foil after the first and second release films are separated from the metal foil; and a rewinding member for winding the metal foil on which the third release film is laminated.
Absstract of: WO2026165796A1
The present application discloses a secondary battery and an electric device. The secondary battery comprises a case, an electrode assembly and an adapter. The electrode assembly comprises two outer-layer electrode sheets and a plurality of inner-layer electrode sheets, one of the two outer-layer electrode sheets is a first electrode sheet, the plurality of inner-layer electrode sheets include a second electrode sheet, and the first electrode sheet and the second electrode sheet have the same polarity. A first tab comprises a first connecting portion connected to the first electrode sheet, a second connecting portion connected to the adapter, and a first portion in the middle, wherein in the extension direction of the first tab, the length of the first portion is L1, and the volume of the first portion is V1. A second tab comprises a third connecting portion connected to the second electrode sheet, a fourth connecting portion connected to the adapter, and a second portion in the middle, wherein in the extension direction of the second tab, the length of the second portion is L2, the volume of the second portion is V2, S1=V1/L1, S2=V2/L2, and S1
Absstract of: WO2026166258A1
A battery device (100) and an electric device. The battery device (100) comprises a battery cell assembly (1), a case (2), and a heat exchange member. The battery cell assembly (1) is mounted in the case (2). The case (2) comprises a frame (21), a first plate (22), and a second plate (23). The frame (21) is configured as an annular shape extending along the outer peripheral edge of the first plate (22), and the outer peripheral edge of the first plate (22) is connected to the frame (21). The first plate (22) is located on one side of the battery cell assembly (1) in a first direction (Z), and the second plate (23) is located on the side of the first plate (22) facing away from the battery cell assembly (1). The heat exchange member is disposed between the first plate (22) and the second plate (23).
Absstract of: WO2026166171A1
The present disclosure relates to a battery cell and a manufacturing method therefor, a battery device, and an electric device. The battery cell comprises an electrode assembly, wherein the electrode assembly comprises a main body portion and a tab portion extending from the main body portion in a first direction. The tab portion comprises a converging region and a bending region located on the side of the converging region distant from the main body portion. The bending region comprises a bending portion, a connecting portion, and an overlapping portion, wherein a free end of the bending region is folded towards the main body portion to form the bending portion, the connecting portion is located between the bending region and the converging region, and the overlapping portion is located on the side of the bending portion distant from the connecting portion and is fixedly connected to the connecting portion. The connecting portion is provided with a first weld mark group, and the first weld mark group is spaced apart from the edge of the tab portion in a second direction, wherein the second direction intersects the first direction. The overlapping portion is provided with a second weld mark group, and the second weld mark group is spaced apart from the edge of the tab portion in the second direction. The battery cell in the present disclosure can improve the reliability of the tab portion.
Absstract of: DE102025104961A1
Batterieanordnung für ein Kraftfahrzeug, mit mehreren flüssigkeitsgekühlten Batteriemodulen zur Aufnahme von Batteriezellen innerhalb eines Batteriemodulgehäuses, mit einem Druckschutzelement zur Entgasung der Batteriezelle, und mit einer Unterfahrschutzanordnung, die unterhalb der Batteriemodule angeordnet ist, wobei die Unterfahrschutzanordnung einen Auffangraum zur Aufnahme von Kühlflüssigkeit des Batteriemoduls aufweist und eine Öffnung im Batteriemodulgehäuse des Batteriemoduls derart angeordnet ist, dass nach Entgasung der Batteriezelle durch Öffnen des Druckschutzelements Kühlflüssigkeit in die Unterfahrschutzanordnung gelangt.
Absstract of: DE102025104770A1
Die Erfindung betrifft eine Batteriezelle (8). Diese umfasst eine Kathode (22) mit einem Binder (28a), eine Anode (14) mit einem Binder (20a), einen Separator (18), wobei der Binder der Kathode (22), der Binder der Anode (14) und/oder der Separator ein Polymer (P1,P2,P3) mit einer sauerstofffangenden funktionellen Gruppe ist oder umfasst.
Nº publicación: DE102026126291A1 13/08/2026
Applicant:
MERCEDES BENZ GROUP AG [DE]
Mercedes-Benz Group AG
Absstract of: DE102026126291A1
Die Erfindung betrifft eine Vorrichtung (1) zur Erfassung und Überwachung eines Zustands einer Batterie (2) mit zumindest einer Einzelzelle (3.1 bis 3.n) und einem Gehäuse (4), wobei ein optischer Emitter (5) ausgebildet ist, einen Lichtstrahl (9) auszusenden, zumindest ein Reflektor (6) ausgebildet ist, den vom Emitter (5) ausgesendeten Lichtstrahl (9) zu empfangen und diesen in einem definierten Winkel zu reflektieren, zumindest ein Empfänger (7) ausgebildet ist, den vom Reflektor (6) reflektierten Lichtstrahl (9) zu empfangen, und eine Auswerteeinheit (8) ausgebildet ist, den vom Empfänger (7) empfangenen Lichtstrahl (9) zumindest bezüglich einer Eigenschaft auszuwerten und mittels der ausgewerteten Eigenschaft eine Anomalie und/oder Verformung der Batterie (2) und/oder einer Einzelzelle (3.1 bis 3.n) zu erfassen.
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