Absstract of: EP4421437A1
Eine Kühlplatte zur Batteriekühlung weist einen aus zwei Plattenelementen (3, 4) gebildeten Plattenkörper (2) und einen Anschlussstutzen (6) für ein Kühlfluid auf. Der Anschlussstutzen (6) besitzt einen Anschlussabschnitt (7), der in einem zwischen den Plattenelementen (3, 4) ausgebildeten Aufnahmeabschnitt (8) des Plattenkörpers (2) gefügt ist. Der Anschlussabschnitt (7) weist im Querschnitt zwei bogenförmige Wandabschnitte (16, 17) sowie zwei einander gegenüberliegende, nach außen gerichtete Längsstege (9) auf. Der Aufnahmeabschnitt (8) weist sich im Bereich der Fügeebene (FE) zwischen den Plattenelementen (3, 4) erstreckende Längskehlen (10) auf. Die Längsstege (9) verlaufen in den Längskehlen (10).
Absstract of: EP4421956A1
A battery drying device includes a membrane disposed external to a battery housing of a battery, and configured to prevent liquid water from passing through the membrane and to allow gaseous water to pass through the membrane, a moisture adsorber means disposed external to the battery housing and downstream from the membrane, and configured to absorb moisture in the gaseous water, and an adjustable connection valve disposed adjacent to the battery housing and downstream from the moisture adsorber means, and configured to, in a regular operation mode, be open and allow air from which the moisture is absorbed by the moisture adsorber means into the battery housing, and in a regeneration mode, be closed. The battery drying device further includes an adjustable regeneration valve interposed between the membrane and the moisture adsorber means.
Absstract of: EP4421438A1
Die Erfindung betrifft eine Wärmeübertragerplatte (1), welche einen aus zumindest zwei Plattenelementen (3, 4) gebildeten Plattenkörper (2) und mindestens einen Anschlussstutzen (6) für ein Kühlfluid aufweist. Plattenkörper (2) und Anschlussstutzen (6) sind löttechnisch miteinander gefügt. Der Anschlussstutzen (6) besitzt einen Fügeabschnitt (7), der in einem zwischen den Plattenelementen (3, 4) ausgebildeten Aufnahmeabschnitt (8) des Plattenkörpers (2) gefügt ist. Erfindungsgemäß ist ein Lotstoppmittel (15) vorgesehen, welches den Lotfluss bei der Herstellung der Lötverbindung begrenzt. Das Lotstoppmittel (15) kann durch ein Dichtmetall gebildet sein, welches auf dem Fügeabschnitt (7) des Anschlussstutzen (6) vor und/hinter einem auf dem Fügeabschnitt (7) applizierten Lotwerkstoff (11) angeordnet ist. Auch kann das Lotstoppmittel (15) durch eine stirnseitig am Aufnahmeabschnitt (8) anliegende Ringwulst (16) gebildet sein.
Absstract of: EP4421488A1
A method and an arrangement for defining the quality of busbar weldings, the method comprising- providing (500) a holder (1) that comprises a set of temperature sensors (2). The temperature sensors (2) being arranged to a predetermined pattern (3) according to the welding spots (4) in the busbar (5). Placing (501) the holder (1) on the busbar (5) welded to terminals (6) of battery cells and pressing (502) the temperature sensors (2) by a contacting force against the busbar (5) so that they make a contact with the busbar (5) in measuring spots (7), heating up (503) the busbar (5), measuring (504) temperatures of the measuring spots (7) with the temperature sensors (2), creating (505) a measuring spot specific temperature response based on temperatures measured in the corresponding measuring spot, and defining (506) the welding quality of the welding spot (4) based on the measuring spot specific temperature response of the nearest measuring spot (7).
Absstract of: EP4421948A1
The disclosure relates to a battery pack module (100), comprising a casing comprising at least one inlet (104) for a coolant to enter the battery pack module and at least one outlet (106) for the coolant to exit the battery pack module. A plurality of battery cell rows (110a-f) are arranged in the casing, each battery cell row comprising a set of battery cells in which each battery cell is arranged in abutment with at least one consecutive battery cell, whereby the plurality of battery cell rows form a plurality of battery cell walls, whereby the battery cell walls form a plurality of sections of a flow channel (120a-g), allowing the coolant to flow from the inlet to the outlet.
Absstract of: EP4421958A1
A battery pack (1) includes: a first stack (300A, 400A) and a second stack (300B, 400B); and a case member (500) provided with an inner space that accommodates the first stack (300A, 400A) and the second stack (300B, 400B) and a side wall (510, 520) that defines the inner space, wherein each of the first stack (300A, 400A) and the second stack (300B, 400B) includes a plurality of battery cells (100) arranged side by side in a first direction, an end plate (400A, 400B) located at an end portion of the plurality of battery cells (100), and a restraint member (600) that restrains the plurality of battery cells (100) and the end plate (400A, 400B) along the first direction, the first stack (300A, 400A) and the second stack (300B, 400B) are provided to be arranged side by side in a second direction orthogonal to the first direction, and the end plates (400A, 400B) arranged side by side in the second direction are engaged with each other, and the end plates (400A, 400B) continuously extend across the inner space along the second direction.
Absstract of: EP4421943A1
A battery sensing unit (400) and a battery module (10) including the battery sensing unit (400) are disclosed. In an embodiment, the battery sensing unit (400) forming one plane comprises a sensing body (410) extending in a transverse direction, a first sensing bridge (421) extending forward from a first end of the sensing body (410), a second sensing bridge (422) extending forward from a second end of the sensing body (410), a first sensing connector (431) forming a shape extending from an end of the first sensing bridge (421) toward the second sensing bridge (422), and a second sensing connector (432) forming a shape extending from an end of the second sensing bridge (422) toward the first sensing bridge (421). The first sensing connector (431) is positioned between the sensing body (410) and the second sensing connector (432).
Absstract of: EP4421954A1
The disclosure provides a battery module (100) and a battery pack. The battery module (100) includes a frame (10), a plurality of cells (20), and an output terminal base (30). The frame (10) includes side plates (11) opposite to each other and a first and a second end plates (12, 13) opposite to each other. The cells (20) are stacked and installed in the frame (10). The output terminal base (30) includes a high-voltage and a low-voltage output terminal installation portions (32) arranged side by side, and a limiting portion (33) formed by extending from a bottom portion of the low-voltage output terminal installation portion (32). A top portion of the first end plate (12) is provided with a limiting groove (121) wherein the limiting portion (33) is installed and an installation groove (122) wherein the high-voltage output terminal installation portion (31) is installed.
Absstract of: EP4421937A1
A rechargeable lithium battery according to an embodiment of the present invention comprises a positive electrode comprising a positive electrode active material; a negative electrode comprising a negative electrode active material; and an electrolyte solution comprising a non-aqueous organic solvent, a lithium salt, and an additive. The positive electrode active material comprises a composite oxide having a nickel content of greater than about 8o mol% based on a total amount of metals except lithium. In addition, the lithium salt comprises a compound represented by Chemical Formula 1; the additive comprises a compound represented by Chemical Formula 2, and the compound represented by Chemical Formula 1 is comprised in about to wt% to about 8o wt% based on a total amount of the lithium salt.Details of Chemical Formulas 1 and 2 are as described in the specification.
Absstract of: EP4421909A1
The present disclosure discloses an anode material and a preparation method and application thereof, the anode material includes a core and a coating layer located on at least part of the surface of the core, the core includes a silicon oxide material, the anode material contains a lithium element, and a mass ratio of the lithium element to the oxygen element in the anode material is a; the anode material is tested through an X-ray photoelectron spectroscopy (Thermo Scientific K-Alpha), a mass ratio of the lithium element to the oxygen element in the region corresponding to the information detectable in the detection process from the surface of the anode material to the inner center region of the anode material is b, a relationship between a and b satisfies 0.4>a>b, the ratio of the lithium element to the oxygen element on the surface layer of the anode material is controlled to be smaller than the ratio of the overall lithium element to the oxygen element of the material, so that the lithium element is more present in the inner center region of the material, the corrosion effect of a water solvent on Si crystal grains in the inner center region of the silicon oxide material is weakened by reducing the content of the lithium element on the surface, and the slurry processing stability is improved.
Absstract of: EP4421929A1
The present invention relates to a taping device for a stacked electrode assembly and a method for taping a stacked electrode assembly, and specifically, relates to a taping device and method for a stacked electrode assembly for guiding movement of a tape, and pressurizing and rolling the tape to adhere to the stacked electrode assembly in a taping process for a stacked electrode assembly. According to one example of the present invention, a taping device for a stacked electrode assembly can be provided, which comprises a support part provided to correspond to the central portion of the tape to be attached to the stacked electrode assembly and the lateral side of the stacked electrode assembly; a vacuum adsorption part adsorbing and fixing the non-pressure-sensitive adhesive side of the tape; a gripper part further fixing the tape by operating to grip the end of the tape; and a taping mechanism part provided to attach the tape to the upper surface and the lower surface of the stacked electrode assembly by moving along the upper surface and the lower surface of the stacked electrode assembly from the upper portion and the lower portion of the support part.
Absstract of: EP4421936A1
Disclosed herein relates to an electrolyte composition for a lithium secondary battery, wherein the electrolyte composition comprises an electrolyte represented by Chemical Formula 1 and has an oxidation potential window at 4.5 V or more, which has the advantage of removing oxidative degradation of the electrolyte composition during charging and discharging of the battery under high voltage conditions.
Absstract of: EP4421915A1
The present invention relates to a recycled positive electrode active material, a method of recycling a positive electrode active material, and a secondary battery including the recycled positive electrode active material. More particularly, the present invention relates to a recycled positive electrode active material including one or more selected from the group consisting of a lithium nickel oxide (LNO)-based positive electrode active material, a nickel-cobalt-manganese (NCM)-based positive electrode active material, a nickel-cobalt-aluminum (NCA)-based positive electrode active material, and a nickel-cobalt-manganese-aluminum (NCMA)-based positive electrode active material, including 60 mol% or more of Ni, and containing crystalline LiF, a method of recycling a positive electrode active material, and a secondary battery including the recycled positive electrode active material.According to the present invention, the present invention has an effect of providing a positive electrode active material prepared by firing a waste positive electrode containing a high-nickel (Ni) positive electrode material at a predetermined temperature, adding a lithium precursor immediately after the firing without a washing process, and performing annealing so that predetermined crystalline LiF is contained on the surface of a recycled positive electrode active material and the amount of residual lithium is controlled; and having excellent initial discharge capacity, rate performance, capacity
Absstract of: EP4422027A1
Present invention concerns charging of a power source of a device. A power usage pattern collector is configured to: collect data on power usage in a device, power source of which is chargeable, with regard to at least one particular criterion having influence on power usage in the device; and determine at least one power usage pattern by use of the collected data, said power usage pattern specifying power usage in the device with regard to at least one particular reoccurring criterion. A charging controller is configured to: acquire at least one power usage pattern; and control charging of a power source of a device by use of the at least one acquired power usage pattern. Present invention relates also to corresponding methods, correspondingly arranged computer program products, correspondingly arranged computer-readable recording media, and a system comprising the power usage pattern collector and the charging controller.
Absstract of: EP4421003A1
Die Erfindung betrifft eine Stapelsäule zur Lagerung von Kraftfahrzeug-Elektrobatterien übereinander oder nebeneinander auf oder an Klinken (7.1-7.3), wobei die die Klinken (7.1-7.3) in einem U-Körper aufgenommen sind und der U-Körper zwei Seitenwangen (1.1, 1.2), eine Rückwand (2) und eine Öffnungskante aufweist, wobei die Klinken (7.1-7.3) um Achsen (8.1-8.3) von einer Ruhelage in Arbeitslage zwischen den zwei Seitenwangen (1.1,1.2) drehen und einerseits der Achse (8.1-8.3) ein Tragteil (9) und andererseits der Achse (8.1-8.3) ein Rückteil (10) aufweisen, wobei sich die Klinke (7.1-7.3) in Arbeitslage mit dem Rückteil (10) gegen einen Mehrkantbolzen-Anschlag (13) abstützt, wobei der Mehrkantbolzen-Anschlag (13) zwischen den beiden Seitenwangen (1.1, 1.2) mit an der Rückwand (2) angeordnet ist und das Tragteil (9) einem Mehrkantbolzen-Auflager (12) aufliegt, wobei das Mehrkantbolzen-Auflager (12) zwischen den beiden Seitenwangen (1.1, 1.2) an der Öffnungskante () angeordnet ist, geeignet, das Tragteil (9) der Klinken (7.1-7.3) in Arbeitslage in einem Unterbereich durch das Mehrkantbolzen-Auflager (12) zu unterstützen, wobei gleichzeitig der Mehrkantbolzen-Anschlag (13) in einem Oberbereich des Rückteils (10) der Klinken (7.1-7.3) stützend anliegt.
Absstract of: EP4421898A1
A positive electrode plate (20) includes a positive electrode current collector (21), a first coating (22), a conductive layer (23) and a positive electrode active substance layer (24). The first coating (22) is disposed on at least one surface of the positive electrode current collector (21), the conductive layer (23) is disposed on a surface of the first coating (22), and the positive electrode active substance layer (24) is disposed on a surface of the conductive layer (23); and the first coating (22) is controlled to include a first material, where the first material comprises one or more selected from the group consisting of a layer-structured metal oxide, a spinel-structured metal oxide, a phosphate metal oxide and a ceramic material, and a conductivity of the conductive layer (23) is 0.02 S/cm to 1 S/cm.
Absstract of: EP4421950A1
The present technology relates to a battery pack. More specifically, the battery pack of the present technology includes pack case that includes a module area in which the battery modules are mounted, and the pack case including a base plate in the form of a hollow shape and having a plurality of space parts formed therein to support a lower part of a battery module and in which coolant is stored; sidewalls coupled to a rim of the base plate; and a separation wall coupled to the base plate to separate the battery modules from each other; the separation wall including: a main separation wall extended and formed across the centered part of the pack case, the base plate enable to flow in out and coupled to the space part and an inlet and an outlet at each end connecting the space parts with each other located between a pair of adjacent space parts, and further includes a flow path part including a plurality of cooling flow paths to connect the space parts each other.
Absstract of: EP4421962A1
Embodiments of the present application provide a battery and an electrical apparatus. The battery includes a box body, a cover body, battery cells, and a carrying assembly. A bottom of the box body is provided with an opening. The cover body covers the opening, and is fixedly connected to the box body. A plurality of battery cells are arranged in the box body, and a top cover plate of each of the battery cells faces the opening and is arranged upside down in the box body. The carrying assembly is arranged between the battery cells and the cover body to support and carry the battery cells. According to the embodiments of the present application, the structural stability and the safety of the battery can be improved.
Absstract of: EP4421968A2
The present disclosure provides a current collecting component, an energy storage device and a power consuming device. The current collecting component includes a connector and an insulating member. The connector includes a first connecting part, a second connecting part, and a bendable connecting part. The bendable connecting part defines a through hole to form a first fusing part and a second fusing part. The insulating member is located between the first connecting part and the second connecting part. When the connector is in an unfolded state, the through hole has a first straight line segment, a first corner segment, a second corner segment and a second straight line segment. The first corner segment and the second corner segment are both set as rounded corners.
Absstract of: EP4421894A1
A negative electrode slurry that can further improve cycle characteristics of a rechargeable battery at high temperatures compared to conventional ones is provided. The negative electrode slurry includes a negative electrode active material including a first active material containing silicon atoms in an amount of greater than or equal to about 5 wt% and less than or equal to about 100 wt%, a binder for binding the negative electrode active material, and a solvent for negative electrode slurry dispersing the negative electrode active material and the binder, wherein the first active material contains silicon atoms in an amount of greater than or equal to about 20 wt% and less than or equal to about 100 wt%, the binder includes a particulate dispersed body and a water-soluble copolymer, the water-soluble copolymer includes a copolymer (AA-NaSS-AN-based copolymer) containing an acrylic acid-based monomer unit, a sodium styrene sulfonate monomer unit, and an acrylonitrile-based monomer unit, a weight average molecular weight of the copolymer is about 300,000 to about 2,000,000, and when a sum of the negative electrode active material and the binder is 100 wt%, and an amount of the water-soluble copolymer is greater than or equal to about 0.5 wt% and less than or equal to about 2 wt%.
Absstract of: EP4420820A1
A power storage device (100) disclosed herein includes a first electrode terminal (40) including a first conductive member (41), a second conductive member (42), and a metal joined part (45). The metal joined part (45) includes a first region (451) in which a first metal occupies 70 mass% or more and a second region (452) in which a second metal occupies 70 mass% or more. The first region (451) includes a region (A1) that exists on the first conductive member (41) side relative to a border surface (B) and a first protrusion region (P1) that protrudes toward the second conductive member (42) relative to the border surface (B), and the second region (452) includes a region (A2) that exists on the second conductive member (42) side relative to the border surface (B) and a second protrusion region (P2) that protrudes toward the first conductive member (41) relative to the border surface (B).
Absstract of: EP4421935A1
The present disclosure provides a non-aqueous electrolyte comprising a lithium salt; an organic solvent; and a compound represented by Formula 1 as an additive:wherein in Formula 1, R<sub>1</sub> may be any one selected from an alkyl group having 1 to 5 carbon atoms in which fluorine can be substituted, an aryl group having 6 to 8 carbon atoms in which fluorine can be substituted, or a nitrile group; and R<sub>2</sub> to R<sub>4</sub> are each independently an alkyl group having 1 to 5 carbon atoms.
Absstract of: EP4421140A1
This application provides a binder composition. The binder composition includes a first fluoropolymer and a second fluoropolymer, where the first fluoropolymer includes polyvinylidene fluoride with a weight-average molecular weight of 5000000-9000000, and a weight-average molecular weight of the second fluoropolymer is not greater than 600000. Featuring good processability, this binder composition, even added in small amounts, can provide electrode plates with great adhesion force and improve the cycling performance of a battery.
Nº publicación: EP4421969A1 28/08/2024
Applicant:
LG ENERGY SOLUTION LTD [KR]
LG Energy Solution, Ltd
Absstract of: EP4421969A1
Disclosed herein relates to a secondary battery, including: an electrode assembly; a battery case; a positive terminal and a negative terminal spaced apart on a top surface of the battery case; and at least one of a W-type terminal structure and a T-type terminal structure, wherein the W-type terminal structure is a structure capable of connecting two secondary batteries in a width direction, and the T-type terminal structure is a structure capable of connecting two secondary batteries in a thickness direction.