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ELECTRODE AND SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4783290A1

An electrode includes a substrate including a metal material, an active material layer on a portion of the substrate, resulting in an uncoated portion, an electrode tab at an end of the uncoated portion, and a corrugated portion in the uncoated portion between the active material layer and the electrode tab.

ELECTRIFIED VEHICLE AND TEMPERATURE CONTROL METHOD OF STORAGE BATTERY

Resumen de: EP4782266A1

The temperature of a battery is raised by an electric heater. A planning unit of an ECU creates a temperature raising plan. A charge electric power amount fee unit price calculation unit calculates a charge electric power amount fee unit price. The temperature raising plan is created such that electric power of the battery is supplied to the electric heater in a time slot in which an electric power amount fee unit price of the external power supply is higher than the charge electric power amount fee unit price, and electric power of the external power supply is supplied to the electric heater in a time slot in which the electric power amount fee unit price is equal to or lower than the charge electric power amount fee unit price. A power controller supplies electric power to the electric heater based on the temperature raising plan.

CAP ASSEMBLY AND SECONDARY BATTERY INCLUDING SAME

Resumen de: EP4783350A1

0001 A secondary battery includes a wound electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode, a case accommodating the electrode assembly, the case including a bottom portion, a sidewall portion connected to the bottom portion, and an opening facing the bottom portion, a first electrode tab connected to the first electrode, and a cap assembly coupled to one end of the sidewall portion to seal the opening, the cap assembly including an insulating washer between the cap assembly and each of the electrode assembly and the first electrode tab, and the insulating washer including a base film and a hard coating layer on a surface of the base film.

ELECTRODE ASSEMBLY AND SECONDARY BATTERY INCLUDING SAME

Resumen de: EP4783277A1

An electrode assembly (1) includes a first electrode (102), a second electrode (104), a separator (106) between the first electrode (102) and the second electrode (104), a first electrode substrate tab (110) connected to the first electrode (102), and a second electrode substrate tab (120) connected to the second electrode (104), wherein the first electrode (102), the second electrode (104), and the separator (106) have a stack structure in one direction, wherein the first electrode substrate tab (110) includes a first substrate (111) protruding from the first electrode (102) in a first direction (211) crossing a stacking direction of the stack structure and a second substrate (113) protruding from the first electrode (102) in a second direction (213) crossing the stacking direction, and wherein the first direction (211) and the second direction (213) differ from each other.

SECONDARY BATTERY AND GAS PRESSURE EVALUATION SYSTEM FOR SECONDARY BATTERY

Resumen de: EP4783297A1

0001 A secondary battery includes an electrode assembly including a first electrode, a second electrode, and a separator interposed between the first electrode and the second electrode, a case accommodating the electrode assembly therein, the case having an opened surface, a cap plate sealing the opened surface of the case, a sensor connection portion located on the cap plate, the sensor connection portion configured to be connected to an external gas pressure measurement sensor, and a first vent portion located inside the sensor connection portion.

METHOD FOR MANUFACTURING ELECTRICITY STORAGE DEVICE AND ELECTRICITY STORAGE DEVICE

Resumen de: EP4782143A1

A method for manufacturing an electricity storage device includes a case body preparing step, a closing plate preparing step, and a welding step. The closing plate prepared in the step of preparing the closing plate includes: a closing portion that covers the opening of the case body, while overlapping an edge of the opening; and an insertion portion inserted into the opening along an inner side of the case body with the closing plate closing the opening. In the step of laser-welding the case body and the closing plate, an area located on the closing portion side relative to a boundary between the edge of the opening and the closing portion is irradiated with laser light, thereby welding the edge of the opening and the closing portion at their boundary.

SECONDARY BATTERY AND METHOD FOR MANUFACTURING SECONDARY BATTERY

Resumen de: EP4783334A1

0001 A secondary battery includes (10): an electrode assembly (100) comprising a first electrode (110), a second electrode (120), and a separator (130) interposed between the first electrode (110) and the second electrode (120), the first electrode (110), the second electrode (120), and the separator (130) being wound to form the electrode assembly (100); a case (200) having an opening (201) formed on one side and forming a receiving space (210) in which the electrode assembly (100) is accommodated; and a cap assembly (300) coupled to the one side of the case (200) to seal the opening (201), wherein the cap assembly (300) includes: a cap plate (310) coupled to the opening (201) and comprising a terminal hole (311) formed with a step; and a terminal plate (320) coupled to the terminal hole (311) via an insulator part (330) and electrically connected to the first electrode (110), and a height of an upper surface of the cap plate (310) coupled to the opening (201) is a same as a height of an upper surface of the terminal plate (320).

RECHARGEABLE BATTERY AND BATTERY PACK INCLUDING RECHARGEABLE BATTERY

Resumen de: EP4783292A1

0001 A rechargeable battery may include an electrode assembly wound around a core portion and a current collector plate located on at least one side of the electrode assembly and electrically connected to the electrode assembly. The current collector plate may include a first region in line with the core portion and having a first thickness and a second region in line with an outer portion of the electrode assembly and having a second thickness that may be less than the first thickness.

SECONDARY BATTERY AND HOUSING THEREOF

Resumen de: EP4783310A1

The present application relates to a secondary battery and a housing thereof. The secondary battery includes a housing, a bare cell, and a top cover assembly. The top cover assembly includes an end cover and lower plastic part provided on the end cover. The end cover seals an opening of the housing. The end cover is provided with an explosion-proof valve through hole for mounting an explosion-proof valve. The lower plastic part is provided with a plurality of exhaust through holes in communication with the explosion-proof valve. An area of the explosion-proof valve through hole accounts for 1.5% to 8% of an area of the end cover. Exhaust areas of orthographic projections of the plurality of exhaust through holes in the end cover account for 1% to 5% of the area of the end cover.

BATTERY MODULE

Resumen de: EP4783753A1

A printed circuit board includes a circuit layer including a base film and a conductive layer on at least one surface of the base film, a first cover layer on one surface of the circuit layer, and a flame-retardant layer between the circuit layer and the first cover layer.

SECONDARY BATTERY AND BATTERY PACK INCLUDING THE SAME

Resumen de: EP4783316A1

0001 A secondary battery (20) and a battery pack including the same are provided. The secondary battery (20) includes a case (100), an electrode assembly (200) accommodated in the case (100), a cap plate (300) facing the electrode assembly (200), a pair of terminals (310) on the cap plate (300), the terminals (310) having different polarities, a current collector (400) connected to the electrode assembly (200) and extending through a first terminal (310) of the terminals (310), and a welded portion (500) between the current collector (400) and the first terminal (310).

CAP ASSEMBLY, SECONDARY BATTERY AND BATTERY PACK

Resumen de: EP4783312A1

0001 A cap assembly, including a cap plate, an insulating plate on a surface of the cap plate, a coupling part extending from the cap plate toward the insulating plate, the coupling part being fixed to the insulating plate, the coupling part including a body extending toward the insulating plate, and a support on an end portion of the body, the support extending in a different direction from the body and is fixed to the insulating plate.

SECONDARY BATTERY

Resumen de: EP4783305A1

A secondary battery, including an electrode assembly including a first electrode tab on one side and a second electrode tab on another side, a case having open side(s) and accommodating the electrode assembly, a first cap plate coupled to the at least one open side of the case, a first electrode terminal electrically connected to the first electrode tab and being exposed outside the first cap plate, a first sub-plate electrically connecting the first electrode tab and the first electrode terminal, and a first insulator between the first cap plate and the electrode assembly, wherein the first sub-plate includes a first plate portion coupled to the first electrode tab, a first tab portion having one end coupled to the first plate portion and another end coupled to the first electrode terminal, and a first coating layer on at least a part of a surface of the first tab portion.

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

Resumen de: EP4782406A1

A cathode active material for a lithium secondary battery according to exemplary embodiments of the present disclosure includes lithium metal oxide particles and a sulfur (S)-containing compound and a sodium (Na)-containing compound present on the surface or inside the lithium metal oxide particles. The surface portion of the lithium metal oxide particle has a concentration gradient of sulfur (S). The absolute value of the slope of the XPS signal of sulfur (S) in the surface portion is 20 cps/nm to 80 cps/nm.

SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME

Resumen de: EP4783309A1

A secondary battery (10) includes: an electrode assembly (210); a case body (110) accommodating the electrode assembly (210); a cap plate (120) sealing an opening of the case body (110); and a positive electrode terminal (130_1) and a negative electrode terminal (130_2), each of the positive electrode terminal (130_1) and the negative electrode terminal (130_2) being electrically connected to the electrode assembly (210), coupled to the cap plate (120), and protruding in a first direction (D1) from an upper surface of the cap plate (120). The cap plate (120) includes a vent portion (122) located between the positive electrode terminal (130_1) and the negative electrode terminal (130_2). A first length of the case body (110) in the first direction (D1) is longer than a second length of the case body (110) in a second direction (D2) perpendicular to the first direction (D1), and the second length is longer than a third length of the case body (110) in a third direction (D1) perpendicular to each of the first direction (D1) and the second direction (D2).

SECONDARY BATTERY AND BATTERY MODULE INCLUDING THE SAME

Resumen de: EP4783276A1

0001 A secondary battery includes an electrode assembly, a case accommodating the electrode assembly, a cap assembly, and a sealing tape surrounding an outermost portion of the electrode assembly, wherein the sealing tape includes a plurality of first protrusions protruding in a first direction, and a plurality of second protrusions connected to the plurality of first protrusions and protruding in a second direction, the plurality of first protrusions and the plurality of second protrusions are arranged alternately, the plurality of first protrusions are located on an upper side of a reference line, the plurality of second protrusions are located on a lower side of the reference line, and at least some of the plurality of first protrusions or the plurality of second protrusions cover at least a portion of an upper surface or a lower surface of the electrode assembly.

SECONDARY BATTERY HAVING BOTTOM RETAINER AND METHOD OF MANUFACTURING THE SAME

Resumen de: EP4783307A1

A secondary battery includes a battery can having an internal space and an opening, an electrode assembly in the internal space of the battery can, a cap assembly fixed to the opening of the battery can, the cap assembly being connected to the electrode assembly, and a bottom retainer on a bottom portion of the battery can, the bottom retainer holding and supporting the electrode assembly.

APPARATUS AND METHOD OF GENERATING LFP BATTERY MODEL

Resumen de: EP4783296A1

0001 Disclosed are an apparauta and a method of generating a lithium iron phosphate (LiFePO<4>, LFP) battery model. The apparatus includes: a lithium state recorder configured to record a state of lithium (Li) in a positive electrode active material of an LFP battery according to charging or discharging of the LFP battery; and a battery model generator configured to generate a battery model of the LFP battery based on the recorded state of the lithium in the positive electrode active material. The battery model generator generates a battery model by modeling the LFP battery using a capacitor and a plurality of resistors including an additional resistance component generated based on the state of the lithium in the positive electrode active material.

MANUFACTURING METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Resumen de: EP4783242A1

0001 A herein disclosed manufacturing method of a nonaqueous electrolyte secondary battery is a manufacturing method of a nonaqueous electrolyte secondary battery that includes an electrode assembly having a positive electrode and a negative electrode and that includes a nonaqueous electrolyte, the manufacturing method including: an assembly body preparing step for preparing an assembly body in which the electrode assembly and the nonaqueous electrolyte are accommodated by a battery case; an initial electrically charging step for electrically charging the assembly body until having a predetermined voltage V0; an aging step for holding the assembly body at 45°C or more for 3 hours or more after the initial electrically charging step; a voltage adjusting step for adjusting the assembly body to have a voltage V1 being less than 3.585 V after the aging step; a temperature history adjusting step for treating a temperature of the assembly body at a temperature decrease starting time to be T1 after the voltage adjusting step, for cooling down the assembly body until having a temperature T2 being lower than the T1, and for heating up the assembly body until having a temperature T3 being higher than the T2; and a self electrical discharge inspecting step for performing a self electrical discharge inspection at a temperature T4 being higher than the T2 after the temperature history adjusting step.

Apparatus for stacking battery plates

Resumen de: GB2703399A

Apparatus 10 comprises a conveyor systems to deliver battery plates 20 to first holding stage 12. A plurality of moveable elements (12a-12b,Fig.1) move to provide (and remove) plate 20 stage support and may be rotatable and comprise a pair of spaced-apart, opposed ledges. A second holding stage 14 catches the battery plate 20 from below and is moveable to allow plate stack 18 removal by conveyor system 16 and may comprise a pair of spaced-apart, opposed wall structures 14a-14b acting as a lift mechanism. A third plate holding stage (22,Fig.4) may comprise a plurality of opposing, retractable, protruding elements (22a-22d,Fig.4) which can support plate 20 dropped from stage 12 whilst stage 14 is being lowered. A reject mechanism may comprise a plurality of retractable, spaced-apart, opposed bars 24a-24b that act as intercept holding stage 24 from stage 12 and allow ejection by extendable, reciprocable member 26 to reject zone (28,Fig.5). Figure 6

BATTERY INSPECTION DEVICE, BATTERY INSPECTION METHOD, AND BATTERY MANUFACTURING SYSTEM

Resumen de: EP4782821A1

0001 According to some embodiments, a battery inspection device includes a photographing unit configured to photograph a feed state of a negative electrode being fed toward a winding core to form a jelly roll of a cylindrical battery cell and generate a negative electrode feed-state image and a processing unit configured to measure a first distance indicating the feed state of the negative electrode based on the negative electrode feed-state image, calculate a negative electrode feed amount index indicating a feed amount of the negative electrode based on the first distance, and diagnose a winding state of the jelly roll based on the negative electrode feed amount index.

TOP CAP WELDING DEVICE FOR CYLINDRICAL BATTERY CELL AND TOP CAP WELDING METHOD FOR CYLINDRICAL BATTERY CELL USING SAME

Resumen de: EP4782142A1

Disclosed are a top cap welding apparatus for cylindrical battery cells, the top cap welding apparatus including a transfer unit configured to transfer a cylindrical battery case in which an electrode assembly having an outwardly exposed electrode tab is received, a pressing unit located in front of the battery case, the pressing unit being configured to press the battery case, a support unit located at the rear of the battery case, the support unit being configured to support the battery case, a top cap holder configured to locate a top cap at the rear of the electrode tab, a top cap support unit configured to support the rear of the top cap, and a welding unit configured to weld the electrode tab and the top cap to each other, wherein the welding unit includes a temperature adjustment unit configured to control the temperature of a welding mask configured to bring the electrode tab into tight contact with the top cap such that the temperature does not rise to a predetermined temperature or higher, and a top cap welding method for cylindrical battery cells using the same.

Cutting module for a cassette-type secondary battery electrode

Nº publicación: PL454525A1 27/07/2026

Solicitante:

YUJIN TECH CO LTD [KR]
Yujin Technology Co., Ltd.

Resumen de: PL454525A1

Przedmiotem zgłoszenia jest przedstawiony na rysunku moduł tnący elektrody akumulatora wtórnego typu kasetowego, który zawiera: górne ostrze zainstalowane tak, aby było zamontowane na górnym uchwycie; dolne ostrze zainstalowane tak, aby było zamontowane na dolnym uchwycie; oraz zespół regulacyjny mający wspornik uchwytu górnego ostrza do zamontowania uchwytu górnego ostrza oraz elementy regulacji luzu i elementy regulacji prostopadłości przeznaczone do regulacji luzu i prostopadłości pomiędzy górnym ostrzem a dolnym ostrzem poprzez elastyczne dociskanie i przechylanie uchwytu górnego ostrza.