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SYSTEM FOR MANUFACTURING SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: EP4664533A1

Example embodiments provide a secondary battery manufacturing system. The secondary battery manufacturing system includes a server configured to store a roll map including defect data indicating a defect of an electrode roll and datum point data indicating a datum point on the electrode roll, a controller configured to load the defect data and the datum point data from the server, and a datum point sensor configured to generate a datum point sensing signal by sensing the datum point on an electrode sheet unwound from the electrode roll, in which the controller is configured to generate datum point sensing data based on the datum point sensing signal and compare the datum point data with the datum point sensing data.

BATTERY PACK

Resumen de: EP4664632A1

A battery pack includes a battery cell assembly including one or more battery cells, a case in which at least a portion of the battery cell assembly is accommodated, the case including a first groove and a second groove, a cover coupled to the case, and a sealing member between the case and the cover, a portion of the sealing member being located in the first groove and the second groove.

SECONDARY BATTERY

Resumen de: EP4664613A1

A secondary battery includes an electrode assembly including a plurality of unit cells stacked in a first direction, and having electrode leads at opposing ends in a second direction perpendicular to the first direction; a multifunctional terminal block (MTB) included at the opposing ends of the electrode assembly; and a laminate sheet that wraps around sides of the electrode assembly, wherein the MTB includes: an electrode terminal part electrically coupled with the electrode leads of the electrode assembly; and a rupture disk configured to rupture to discharge gas.

NEGATIVE ELECTRODE SHEET AND PREPARATION METHOD THEREFOR, SECONDARY BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4664536A1

The present application relates to a positive electrode sheet and a preparation method therefor, a secondary battery, and an electric device. The negative electrode sheet includes a negative electrode current collector, an active material layer, and a passivation layer, where the active material layer is provided between the negative electrode current collector and the passivation layer; the active material layer includes a negative electrode active material, the passivation layer includes ion resin, and the ion resin includes one or more of carboxymethyl cellulose and a metal salt of carboxymethyl cellulose.

BATTERY AND VEHICLE

Resumen de: EP4664634A1

A battery (100) and a vehicle (1000) are provided. The battery (100) includes: at least one battery cell (17), a box (1), and a buffer structure (23). The battery cell (17) is arranged in the box (1). The buffer structure (23) is fixedly connected to the box (1), and the buffer structure (23) protrudes out of a side wall of the box (1).

BATTERY CELL, BATTERY AND ELECTRIC DEVICE

Resumen de: EP4664643A1

Disclosed in the present application are a battery cell, a battery and an electric device. The battery cell comprises: a case, the case comprising a first wall portion, a second wall portion and a third wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged at the first wall portion; and an electrode assembly, which is accommodated in the case, wherein the electrode assembly comprises at least one negative electrode sheet, an active material layer is formed on at least one side of the negative electrode sheet, and in a second direction, the first wall portion is arranged facing an edge of the negative electrode sheet; in the second direction, the minimum distance between the pressure relief mechanism and an edge of the active material layer is D, and 3 mm≤D≤15 mm; on the basis of the total mass of the active material layer, the mass proportion of an active material is S, and 0.5%≤S≤25%; and in a first direction, the minimum distance between an edge of the pressure relief mechanism and an outer surface of the second wall portion or an outer surface of the third wall portion is d, and 3 mm≤d≤20 mm.

POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE SLURRY, AND LITHIUM-ION BATTERY

Resumen de: EP4664557A1

A cathode material, a cathode slurry and a lithium ion battery provided. The cathode material has a general chemical formula of where 0.80≤σ≤1.20, a+b+c+x+y+z=1, 0.6≤a≤1.0, 0.0≤b≤0.10, 0.0≤c≤0.3, 0

PRISMATIC POWER STORAGE DEVICE

Resumen de: EP4664614A1

A prismatic power storage device (1; 101) includes a case (4) having a case body (5) and a rectangular plate-shaped lid (6;106), an electrode body (2) housed in the case (4), a positive terminal member (7;107) extending out through a positive-electrode insert hole (6p,106p) provided in the lid (6;106), and a negative terminal member (8;108) extending out through a negative-electrode insert hole (6n;106n). The lid (6;106) includes a first safety valve (6s1;106s1) provided in a center (6C;106C) of the lid (6;106) and to be opened at a first operating pressure (P1), a second safety valve (6s2;106s2) provided on one side (LH1) relative to a central region and to be operated at a second operating pressure (P2) higher than the first operating pressure (P1), and a third safety valve (6s3;106s3) provided on the other side (LH2) relative to the central region and to be operated at a third operating pressure (P3) higher than the first operating pressure (P1).

SECONDARY BATTERY PACKAGING PAPER AND SECONDARY BATTERY PACKAGING BOX

Resumen de: EP4664627A1

The present invention relates to a secondary battery packaging interleaf and a secondary battery packaging box, and more specifically, relates to a secondary battery packaging interleaf and a secondary battery packaging box, capable of preventing damage to recognition codes of a plurality of accommodated cylindrical battery cells.In order to achieve the above-described objects, according to one example of the present invention, it is possible to provide a secondary battery packaging interleaf comprising a partition wall forming multiple accommodation spaces, in which multiple cylindrical battery cells with printed recognition codes are each accommodated, and provided with a contact prevention portion to be in no contact with the recognition code printed on the outer peripheral surface of the accommodated cylindrical battery cell, and a packaging box comprising the same.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4664597A1

The present application discloses a battery cell, a battery, and an electric device. The battery cell comprises: a casing, the casing comprising a first wall portion; a pressure relief mechanism, the pressure relief mechanism being arranged on the first wall portion; and an electrode assembly, being accommodated in the casing, the electrode assembly comprising at least one negative electrode sheet, the first wall portion facing the edge of the negative electrode sheet, an active material layer being formed on at least one side of the negative electrode sheet, the active material layer comprising a first region and a second region which are arranged in a first direction, the second region being closer to the first wall portion than the first region, the first direction being parallel to the thickness direction of the first wall portion, and in a full-charge state, the thickness of the second region being a µm, and the thickness of the first region being b µm, wherein b-a≥5 µm.

METHOD AND APPARATUS FOR CALIBRATING CONTACT PARAMETERS OF ELECTRODE MATERIAL, AND COMPUTER STORAGE MEDIUM

Resumen de: EP4664343A1

Provided are a method and apparatus for calibrating contact parameters of electrode materials, and a computer storage medium. The method includes the following operations. A discrete element simulation test is performed on an electrode material based on a calibration model and calibration ranges of contact parameters of the electrode material when an axial force-displacement curve of a target pellet of the electrode material meets an adaption condition of the contact model; then a simulated axial pressure-axial strain relationship of the electrode material is acquired based on a target discrete element simulation parameter of the electrode material; whether the contact parameters are calibrated successfully is judged based on this relationship; and when the contact parameters are calibrated successfully, calibration results of the contact parameters are determined.

SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME

Resumen de: EP4664655A1

A first spacer (610) is disposed between a first sealing plate and an electrode assembly. The first spacer (610) includes a first base portion (630), a first outer peripheral wall (640), and a first inner wall (650). The first base portion (630) is provided with a plurality of through holes (632). The first outer peripheral wall (640) extends from an outer peripheral edge of a surface of the first base portion (630) on the first sealing plate (120) side toward the first sealing plate (120), and has a first portion (643) and a second portion (644) facing each other. The first inner wall (650) is provided to connect the first portion (643) and the second portion (644) of the first outer peripheral wall (640).

BATTERY MANUFACTURING APPARATUS

Resumen de: EP4664534A1

A battery manufacturing apparatus includes a negative electrode notching device configured to assign a first electrode ID to individual notched electrodes; a first cutting device for separating individual negative electrodes assigned the first electrode ID; a positive electrode notching device configured to assign a second electrode ID to individual notched electrodes; a second cutting device for separating individual positive electrodes assigned the second electrode ID; a stacking device configured to stack the individual positive electrodes and the individual negative electrodes with a separator therebetween; and a roll map creating device.

CONNECTOR INSPECTION APPARATUS

Resumen de: EP4664134A1

A connector inspection device according to an embodiment of the present disclosure, which is an inspection device connected to a connector of a battery module and inspecting the performance of the connector, may include a first body portion; a second body portion having one surface connected to one surface of the first body portion; a third body portion that has one surface connected to the other surface of the second body portion and includes a detection member connected to the connector and receiving an electrical signal from the connector; and a fourth body portion having one surface facing the other surface of the third body portion, having the detection member located therein, and being movable toward the third body portion, wherein the second body portion, the third body portion and the fourth body portion may be movable along one surface of the first body portion.

DIE COATER, COATING EQUIPMENT COMPRISING SAME, AND METHOD FOR COATING ELECTRODE USING SAME

Resumen de: EP4663307A1

Disclosed herein relates to a die coater, wherein in the second coater shim forming the second slit through which the insulating liquid is discharged, the length L1 of the first sidewall at a relatively distant position from the first slit is longer than the length L2 of the second sidewall at a relatively close position from the first slit.

ROLL PRESS APPARATUS FOR MANUFACTURING SECONDARY BATTERY

Resumen de: EP4664535A1

Disclosed herein is a roll press device for performing hot rolling on an electrode coated with electrode active material, wherein, in one example, a pre-heater is disposed upstream of a rolling unit that performs rolling on an electrode transferred in a roll-to-roll manner, and the pre-heater irradiates an infrared laser along a width direction of the electrode surface to heat it as radiant heat.

ELECTROLYTE INJECTION SYSTEM AND ELECTROLYTE INJECTION METHOD

Resumen de: EP4664670A1

Disclosed are a liquid injection system (100) and a liquid injection method. The liquid injection system (100) includes a rotary device (1), a liquid injection device, a liquid preparation mechanism (3), a loading and unloading station (4), a liquid replenishment buffer station (5), a transfer mechanism, a first weighing device (61), a second weighing device (62) and control equipment. The rotary device (1) is provided with a plurality of battery (200) placement positions arranged in a circumferential direction and able to achieve rotational displacement. The liquid injection device is disposed on each battery (200) placement position, and each liquid injection device is configured to inject a liquid into a battery (200) on the corresponding battery (200) placement position. The liquid preparation mechanism (3) is configured to prepare a liquid for the liquid injection device passing through a liquid preparation area of the liquid preparation mechanism (3). The loading and unloading station (4) is configured to place batteries (200) to be subjected to liquid injection and batteries (200) after liquid injection. The liquid replenishment buffer station (5) is configured to buffer batteries (200) to be subjected to liquid replenishment. The transfer mechanism is configured to move the batteries (200). The first weighing device (61) is configured to weigh the batteries (200) after liquid injection. The second weighing device (62) is configured to weigh the batteries (200) to be s

SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY

Resumen de: EP4664661A1

In the present secondary battery (1), a current collector (431) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (431) includes a first region (431A) and a second region (431B), a positive electrode tab group (250, 280) is joined to the first region (431A), a positive electrode current collection portion (420) is joined to the second region (431B), and the current collector (431) is bent between the first region (431A) and the second region (431B). According to the present secondary battery (1), it is possible to suppress occurrence of damage to the tab group.

SOLDERING STRUCTURE AND SOLDERING METHOD FOR BATTERY CELL, AND BATTERY

Resumen de: EP4664663A1

A soldering structure and a soldering method for a battery cell, and a battery are provided, relating to the field of battery technology. The soldering structure for the battery cell includes a wound body; full electrode tabs, formed at ends of the wound body; and current collecting parts, soldered to sides, facing away from the wound body, of the full electrode tabs to form multiple solder joints; in which the multiple solder joints are arranged at equal arc distances along a winding direction of the wound body. The multiple solder joints are arranged at equal arc distances along the winding direction of the wound body, so that the solder joints can be uniformly distributed on the full electrode tabs along the winding direction, and a current can be uniformly transmitted into the wound body through the full electrode tabs, reducing the current loss.

CYLINDRICAL BATTERY CELL, BATTERY PACK AND VEHICLE INCLUDING SAME, AND CURRENT COLLECTOR PLATE

Resumen de: EP4664665A1

Disclosed are a cylindrical battery cell, a battery pack and vehicle including the same, and a collector board. A cylindrical battery cell according to an embodiment of the present disclosure includes: an electrode assembly configured in a structure in which a positive electrode plate, a negative electrode plate, and a separator interposed between the positive electrode plate and the negative electrode plate are wound in one direction; a cylindrical battery can configured to store the electrode assembly and having a through-hole formed thereon; a positive electrode collector board electrically connected to the positive electrode plate; a cell terminal connected to the positive electrode collector board through the through-hole of the battery can; and a negative electrode collector board electrically connected to the negative electrode plate, wherein a breaking induction portion is formed on the positive electrode collector board or the negative electrode collector board so that at least a portion of the positive electrode collector board or the negative electrode collector board is broken by gas generated inside the battery can.

BATTERY CELL, BATTERY, AND ELECTRIC DEVICE

Resumen de: EP4664667A1

The present application is applicable to the technical field of batteries, and provides a battery cell, a battery, and an electrical apparatus. The battery cell comprises a shell, an electrode assembly, an insulating structure, and a separation structure. The shell has an inner cavity, and the shell has a first wall; the electrode assembly is provided in the inner cavity; both the separation structure and the insulating structure are provided between the electrode assembly and the first wall; one of the insulating structure and the separation structure is provided with at least two first through holes, and the other is provided with second through holes respectively corresponding to the first through holes; the second through holes comprise an alignment hole, and the cross-sectional area of the alignment hole is greater than that of the corresponding first through hole, or the cross-sectional area of the alignment hole is greater than that of other second through holes. Since the battery cell provided in the present application is provided with the alignment hole, at least two positioning pins may be inserted between the insulating structure and the separation structure for positioning, resulting in more effective positioning.

POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREFOR, AND BATTERY

Resumen de: EP4664559A1

A cathode material and a preparation method thereof, and a lithium ion battery are provided. A volume particle size distribution width of the cathode material is Span, Span=D90−D10D50, and a dissociation degree of the cathode material is β, β=D50Dn50, wherein the cathode material meets the following relationships: 1.1≤β<1.65, and 0.9≤Span≤1.53.The dissociation degree and volume particle size distribution width of the cathode material provided in the present disclosure meet the above conditions, such that it may ensure that the cathode material has a certain electrode plate compaction density to increase an energy density while ensuring the integrity of a crystal structure of the cathode material during charging and discharging of a lithium ion battery, and a gas production value is reduced, thereby causing the cathode material to have excellent cycling performance and safety performance.

BATTERY ELECTROLYTES INCLUDING SOLVENTS COMPRISING CYCLIC ACETALS

Resumen de: EP4664595A1

Die vorliegende Erfindung betrifft einen lösungsmittelbasierten Elektrolyt für einen elektrochemischen Energiespeicher, aufweisend wenigstens die folgenden Bestandteile:- wenigstens ein Lösungsmittel; und- wenigstens ein Leitsalz, wobeiwenigstens ein Lösungsmittel der folgenden Formel (1) entspricht:wobei- R und R₁ gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, CH₃, der Struktur gemäß Formel (3) und der Struktur gemäß Formel (4) oder R und R₁ gemeinsam die Struktur gemäß Formel (2) ausbilden, wobei- die Formel (2) der folgenden Struktur entspricht:- die Formel (3) der folgenden Struktur entspricht:wobei n eine ganze Zahl von 1 bis 10 ist;- die Formel (4) der folgenden Struktur entspricht:wobei in den Formeln (1), (3), und (4) R₂ und R₃ gleich oder verschieden sind und ausgewählt sind aus der Gruppe bestehend aus H, (CH₂)_x-CH₃, wobei x eine ganze Zahl von 0 bis 9 ist.

CHARGING SYSTEM AND CHARGING METHOD

Resumen de: EP4664719A2

A charging system includes: an information input unit that acquires device-to-be-charged information that is information on devices-to-be-charged connected to charging ports; a unit-allocating unit that allocates a power conversion unit to each charging port corresponding to each device-to-be-charged such that the power conversion unit is allocated in high priority to the device-to-be-charged with a high priority level based on the devices-to-be-charged information; and a switching control unit that controls a switch unit, based on a result of the allocation by the unit-allocating unit.

SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY

Nº publicación: EP4664662A1 17/12/2025

Solicitante:

PRIME PLANET ENERGY & SOLUTIONS INC [JP]
Prime Planet Energy & Solutions, Inc

Resumen de: EP4664662A1

In the present method of manufacturing a secondary battery (1), a current collector (53A) is a first stack in which a plurality of metal plates (4300) are stacked, the current collector (53A) includes a first region (532A) and a second region (532B), a positive electrode tab group (250, 280) is joined to the first region (532A), a positive electrode current collection portion (420) is joined to the second region (532B), the method including: a preparation step of preparing the current collector (53A) having a first joining portion (532T) in which the metal plates are partially joined together; a first tab group connection step of joining the positive electrode tab group (250, 280) to the current collector (53A); and an other conductive member connection step of joining the positive electrode current collection portion (420) to the current collector (53A). According to the present method of manufacturing the secondary battery (1), occurrence of damage to the tab group can be suppressed.