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1058
resultados
Última actualización
22/11/2025 [07:55:00]
Resultados 1025 a 1050 de 1058
Resumen de: EP4647790A1
There are provided a battery diagnosis apparatus, a battery pack, an electric vehicle and a battery diagnosis method. The battery diagnosis apparatus includes a control circuit configured to generate a Q-V profile, a normalized Q-V profile and a Q-dV/dQ profile based on capacity-voltage relationship data of a battery cell acquired by a data acquisition unit. The control circuit identifies a cut-off reference point located in a reference capacity range from the Q-dV/dQ profile. The control circuit determines a profile fitting factor associated with a Q-V profile of interest that is a higher capacity side part of the normalized Q-V profile on the basis of a capacity value of the cut-off reference point. The control circuit determines at least one degradation parameter of the battery cell based on the profile fitting factor.
Resumen de: EP4648162A1
The present invention relates to an all-solid-state battery, wherein the solid electrolyte present at the interface of the negative electrode active material layer and the solid electrolyte layer has an average particle size of 1 µm to 3 µm, and a method of manufacturing same.
Resumen de: EP4648131A2
A matrix, a anode material, and a secondary battery. The matrix has pores. The matrix includes a carbon material. An average value D<sub>0</sub> of particle sizes of the matrix is 5.5 µm to 9.5 µm, and a standard deviation S<sub>0</sub> of the particle sizes of the matrix is 0.08 to 0.35. The anode material includes the matrix and an active substance. The matrix has the pores, and at least partial active substance is disposed in the pores of the matrix. An average value D<sub>1</sub> of particle sizes of the anode material is 5.5 µm to 9.5 µm, and a standard deviation S<sub>1</sub> of the particle sizes of the anode material is 0.1 to 0.35. The secondary battery based on the matrix or the anode material has good charge-discharge efficiency, cycling stability, and dynamic performance.
Resumen de: EP4647204A1
A jig (2) for laser welding is usable when performing laser welding by applying laser light to a welding-target portion (115), and includes: an accommodation portion (10) that is able to receive the welding-target portion (115) along a first direction; and an inclined surface (20) extending in a peripheral direction so as to surround the welding-target portion (115) around an axis in the first direction, wherein the inclined surface (20) is able to reflect, in a second direction intersecting the first direction, the laser light emitted toward the jig (2) for laser welding, so as to orient the laser light toward the welding-target portion (115).
Resumen de: EP4648158A1
The present disclosure relates to a separator for a rechargeable lithium battery and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on a surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler has a particle diameter D50 ranging from 250 nm to 350 nm. The adhesive binder includes a fluorine-based adhesive binder having a hydroxyl group or a carboxylic acid group and a fluorine-based adhesive binder not having a hydroxyl group and a carboxylic acid group.
Resumen de: EP4647153A1
A substance feeding device, a mixing system, and a battery production line are provided, relating to the field of substance conveying technologies. The substance feeding device helps to improve precision of controlling a weight of a conveyed substance. The substance feeding device includes: a buffer member (1), a conveying assembly (2), a weight meter (3), and a control assembly (4). The buffer member (1) is configured to store a substance; one end of the conveying assembly (2) is connected with the buffer member (1); the conveying assembly (2) has at least two conveying ports (21); the conveying port (21) is configured to connect with a target device; the weight meter (3) is connected with the buffer member (1) and is configured to detect a weight of the substance in the buffer member; each conveying port (21) is provided with one control assembly (4); the control assembly (4) is configured to control communication and cutoff of a pipeline between the conveying port (21) and the corresponding target device; the control assembly (4) includes a back pressure valve (41); and the back pressure valve (41) is disposed on the conveying port (21) and capable of being connected with the target device. The provided substance feeding device is configured to feed the substance into the target device.
Resumen de: EP4648159A1
Examples of the present disclosure include a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator for a rechargeable lithium battery includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a binder and a filler. The binder includes a (meth)acryl-based binder including a sulfonate group-containing structural unit. The filler includes a mixture of boehmite and barium titanate in a weight ratio in a range of 20:80 to 80:20 with respect to 100 parts by weight of the mixture of boehmite and barium titanate.
Resumen de: EP4648155A1
A battery (200) may include an electrode assembly (220) including electrodes, and a body cup (210) that includes a first reference wall (212) and a first sidewall (214) provided adjacent to the first reference wall (212), with the body cup (210) having an open end and the body cup (210) accommodating the electrode assembly (220). The battery (200) also includes a cover cup (230) that includes a second reference wall (232) and a second sidewall (234) provided adjacent to the second reference wall (232). The cover cup (230) has an open end and is accommodated in the body cup (210) such that the second reference wall (232) closes the open end of the body cup (210). At least a portion of the first sidewall (214) and at least a portion of the second sidewall (234) are joined to form a flange (240).
Resumen de: EP4648121A1
Disclosed are positive electrode active materials and rechargeable lithium batteries. The positive electrode active material comprises a first particle that includes a first lithium composite oxide and has a first average particle diameter, and a second particle that includes a second lithium composite oxide and has a second average particle diameter less than the first average particle diameter. The first particle further includes a first coating layer on a surface of the first lithium composite oxide. The second particle further includes a second coating layer on a surface of the second lithium composite oxide. Each of the first and second lithium composite oxides is lithium composite oxide that includes nickel (Ni) and excludes cobalt (Co). The first coating layer includes aluminium (Al). The second coating layer includes cobalt (Co).
Resumen de: EP4648179A1
Provided are a CTP battery pack and an electric device. The CTP battery pack includes a housing and multiple battery cell modules. The housing has multiple containment cavities, each containment cavity containing at least one of the battery cell modules. Each battery cell module includes battery cells, a heat spreader, a first connecting member, and a second connecting member. The battery cells are arranged in a first direction, and the first connecting member, the heat spreader and the second connecting member are stacked sequentially between two adjacent ones of the battery cells.
Resumen de: EP4647785A1
Provided is a battery analysis method performed on a server, the method comprising the steps of: acquiring electrochemical impedance spectroscopy (EIS) information for each of a plurality of different states of charge, the EIS information being confirmed by performing EIS on a battery cell in the plurality of states of charge; generating distribution of relaxation times (DRT) information for each of the plurality of states of charge by calculating a DRT for the EIS information for each of the plurality of states of charge; and generating, on the basis of the DRT information for each of the plurality of states of charge, a feature image corresponding to the battery cell, the feature image including magnitude information about impedance according to frequency, the magnitude information being calculated for each of the plurality of states of charge.
Resumen de: EP4648174A1
A transport and storage unit (1) for accommodating two or more battery modules (9, 10, 11, 12, 13) during transport and/or storage is disclosed. Two or more mounting interfaces (8), are each configured to receive and establish electrical connection to a battery module (9, 10, 11, 12, 13). A charge cycling system is electrically connected to the two or more mounting interfaces (8), and a controller is configured to control the charge cycling system so as to periodically charge and discharge battery modules (9, 10, 11, 12, 13) being mounted in the two or more mounting interfaces (8). At least one transport interface (3, 4) is provided for connecting the transport and storage unit (1) to a transport device, so as to allow movement of the transport and storage unit (1) by means of the transport device.Furthermore a method for charge cycling two or more battery modules using such a transport and storage unit (1).
Resumen de: EP4648213A1
Disclosed is a battery pack including a case body having an inner space configured to receive a plurality of battery cells, a lower case coupled to the bottom of the case body, a through-hole in the lower case, and a stopper covering the through-hole, wherein the stopper includes a rupture portion configured to rupture when tension is applied from the outside of the lower case. It is possible to determine whether a user has arbitrarily disassembled the battery pack by checking whether the rupture portion has ruptured.
Resumen de: EP4647786A1
Systems, apparatuses, and methods for electrochemical impedance spectroscopy (EIS) for use with batteries, including for EIS phase and amplitude detection of a stimulated system are provided. A battery management system comprising EIS circuitry (510) is electrically coupled to a battery (100). The EIS circuitry (510) provides a stimulus signal (512) to the battery to generate a response signal (514) from the battery (100). A current signal and voltage signal are generated by the EIS circuitry (510) based on the response signal (514) from the battery (100). The EIS circuitry (510) generates at least one output signal (522) based on the current signal and the voltage signal, and an impedance is generated based on the at least one output signal (522).
Resumen de: EP4648119A1
An electrode for a rechargeable battery according to one or more embodiments of the present disclosure includes: a substrate; and an active material layer that is formed on the substrate, includes a plurality of holes, and includes a first density portion and a second density portion. The first density portion has a higher density than that of the second density portion, the second density portion has a lower density than that of the first density portion, and the second density portion is disposed at both sides (e.g., opposite sides) of the first density portion.
Resumen de: EP4647399A1
An electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided, and may promote the nano-fibrillation of a fibrillable binder, and improve the mechanical properties and electrical properties of a battery. In one or more embodiments, an electrode includes a freestanding dry electrode film including an electrode active material, a binder, and a conductive additive, and the conductive additive includes a carbon black-based compound of which a specific surface area is 350 m<sup>2</sup>/g or less and a crystallite size is 15 Å or more.
Resumen de: EP4647715A1
The present application provides a misalignment detection method and apparatus for battery tabs, and a battery electrode plate winding system. The misalignment detection method for battery tabs includes: using a winding shaft to wind a battery electrode plate; for an N<sup>th</sup> (N is an integer greater than 0) layer of an electrode plate section wound on the winding shaft: obtaining, in a winding period, an image to be tested of the layer of the electrode plate section, where the image to be tested includes a battery tab region; determining a relative positional relationship, between a battery tab and a reference part on the winding shaft, in the image to be tested; and determining, according to the relative positional relationship and a layer number of the N<sup>th</sup> layer of the electrode plate section on the winding shaft, a misalignment amount of the battery tab when the wound electrode plate is pressed into a battery cell.
Resumen de: EP4648182A1
A battery module including: a plurality of battery cells arranged in one direction, each of the plurality of battery cells including a vent in an upper side thereof, the vent having a thin film shape; and a protective member covering an upper side of the vent of each of the plurality of battery cells. The protective member being made of a foam heat insulating material including a plurality of pores.
Resumen de: EP4648183A1
Ein Zellgehäuse (10) für einen Batteriezellkörper (12), mit Seitenwänden (14, 16) und einer an einer der Seitenwände (14, 16) angeordneten Berstvorrichtung (22). Die Berstvorrichtung (22) ist aus einem Einlegerelement (24) und einer Berstmembran (26) gebildet. Das Einlegerelement (24) weist eine Bersthilfe (38) mit einer Schneidgeometrie (40) auf, die der Berstmembran (26) zugeordnet ist. Die Bersthilfe (38) steht in Richtung der Berstmembran (26) über eine vom Einlegerelement (24) definierte Ebene hervor.
Resumen de: EP4648196A1
A battery pack for powering a power tool includes: a housing; a terminal assembly configured to be connected to a tool terminal of the power tool to transmit electric energy; and a cell module accommodated in the housing and electrically connected to the terminal assembly, where the cell module includes at least multiple cell units. The energy density per unit volume of the battery pack is greater than or equal to 110 mWh/cm<sup>3</sup>.
Resumen de: EP4648120A1
A positive electrode active material comprises a first active material represented by a formula (I) and a second active material represented by a formula (II). The formula (I) and the formula (II) are as specified in the claims. Each of the first active material and the second active material is secondary particles each consisting of 50 or more primary particles aggregated together. An average particle size (D<sub>1</sub>50) of the first active material is smaller than an average particle size (D<sub>2</sub>50) of the second active material.
Resumen de: EP4648128A1
A positive electrode active material comprises a first active material represented by a formula (I) that is secondary particles each consisting of 50 or more primary particles aggregated together, as well as a second active material represented by a formula (II) that is at least one of single particles and secondary particles each consisting of 2 to 10 primary particles aggregated together. The formula (I) and the formula (II) are as specified in the claims. A content of the first active material in the positive electrode active material is from 20 to 70 mass%. A ratio (D<sub>1</sub>50/D<sub>2</sub>50) of an average particle size (D<sub>1</sub>50) of the first active material to an average particle size (D<sub>2</sub>50) of the second active material is from 2.45 to 5.95.
Resumen de: EP4647706A1
Die vorliegende Erfindung betrifft einen Konnektorblock (KB) für eine Fluidleitungsstruktur (1a) für ein modulares Temperiersystem (TS) eines Energiespeichers, insbesondere für ein Kühlsystem für Fahrzeugbatterien, mit mindestens einer Sammelleitung (2) für das Fluid sowie mit mindestens einer ersten Abzweigleitung (3) für den Vorlauf des Fluids an mindestens ein fluidführendes hohles, insbesondere plattenförmiges, Kühlelement (4) und mit mindestens einer zweiten Abzweigleitung (4) für den Rücklauf des Fluids von dem fluidführenden hohlen plattenförmigen Kühlelement (20) sowie mit mindestens einer ersten Verteilerschnittstelle (3a) und einer zweiten Verteilerschnittstelle (4a) zum jeweiligen Anschluss der Abzweigleitungen (3, 4) an die Sammelleitung (2). Um eine derartige Struktur (1a) bei Erhalt eines geringen Montageaufwandes und ohne Vergrößerung der Anzahl von Verbindungsstellen derart zu modifizieren, dass darin eine strömungsmechanische Verbesserung des Fluidstromes erzielt werden kann, wird vorgeschlagen, dass in dem Konnektorblock (KB) mindestens eine der Abzweigleitungen (3, 4) trichterförmig ausgebildet ist, wobei sich der Querschnitt der Abzweigleitung (3, 4) ausgehend vom Querschnitt (A2) an der Verteilerschnittstelle (3a, 4a) an der Sammelleitung (2) bis zur Anbindung an den Querschnitt (A20) des fluidführenden hohlen plattenförmigen Kühlelementes (20) erweitert.
Resumen de: EP4648152A1
The present invention relates to an electrode assembly manufacturing apparatus and an electrode assembly manufacturing method including a process of attaching a tape to an electrode assembly by using same, the electrode assembly manufacturing apparatus comprising: a rotating roll; a plurality of electrode assembly accommodation grooves provided at the circumference of the rotating roll; and a guide block provided between any one of the plurality of electrode assembly accommodation grooves and another electrode assembly accommodation groove adjacent thereto to provide a tape to each electrode assembly to be accommodated in the electrode assembly accommodation grooves.
Nº publicación: EP4646748A1 12/11/2025
Solicitante:
VERKOR [FR]
Verkor
Resumen de: WO2025202902A1
The invention relates to a method for producing an electric cell comprising a plurality of electrodes stacked on top of one another and separated from one another by a porous separator film, the method comprising: - a step of producing the electrodes; - a step of stacking the electrodes one on top of another to form a stack of electrodes, wherein the electrodes are separated by a porous separator film, in which method the step of producing the electrodes comprises: - an operation of unwinding a wound electrode sheet (4); and - a primary marking operation of marking the electrode sheet (4) by means of a primary identification element (5), wherein the marking operation is carried out after the operation of unwinding the electrode sheet (4), and wherein the marking operation is repeated continuously as the wound electrode sheet is unwound.
BOPI
Sede Electrónica
