公开(公告)号：EP4423845A2

公开(公告)日：2024-09-04

申请号：EP22809738.2

申请日：2022-10-25

Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT

Inventor： BECKER, Adrian ,  KLEMT, Christian ,  JANSEN, Tobias ,  JORDAN, Marco ,  LIPPKY, Kristian

IPC: H01M50/46 ,  H01M10/04 ,  H01M10/058 ,  H01M10/0585 ,  H01M10/647 ,  H01M50/105 ,  H01M10/0525

CPC classification number: H01M10/058 ,  H01M10/0585 ,  H01M10/0525 ,  H01M10/0459 ,  H01M10/647 ,  H01M50/105 ,  H01M50/46 ,  Y02E60/10 ,  Y02P70/50

公开(公告)号：EP4418359A1

公开(公告)日：2024-08-21

申请号：EP24158230.3

申请日：2024-02-16

Applicant: SK On Co., Ltd. ,  SK Innovation Co., Ltd.

Inventor： PARK, Ki Sung ,  JEON, Hyun Ji

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/48 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M50/105

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M4/587 ,  H01M4/386 ,  H01M10/4235 ,  H01M4/364 ,  H01M4/483 ,  H01M50/105 ,  H01M2300/002520130101

Abstract: An electrolyte solution for a lithium secondary battery according to embodiments of the present disclosure includes a lithium salt, a non-aqueous organic solvent, and a silatane-based having a specific chemical structure. A secondary battery includes the electrolyte solution for a lithium secondary battery. The secondary battery has improved high temperature storage properties and life-span properties.

公开(公告)号：EP4415145A1

公开(公告)日：2024-08-14

申请号：EP22878600.0

申请日：2022-10-06

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： SASAKI, Miho ,  KATO, Takahiro

IPC: H01M50/342 ,  B65D65/40 ,  H01M10/04 ,  H01M50/105 ,  H01M50/121 ,  H01M50/129 ,  H01M50/184 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198 ,  H01M50/375

CPC classification number: Y02E60/10 ,  B65D65/40 ,  H01M10/04 ,  H01M50/105 ,  H01M50/121 ,  H01M50/129 ,  H01M50/184 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198 ,  H01M50/342 ,  H01M50/375

Abstract: Provided is an adhesive film that is used in a power storage device. The power storage device comprises a structure in which a power storage device element is accommodated in a package formed by a power storage device exterior material. The power storage device exterior material is constituted of a laminate including at least a base material layer, a barrier layer, and thermally-fusible resin layers in the stated order from the outside. The thermally-fusible resin layers of the power storage device exterior material are thermally fused together so as to accommodate the power storage device element in the package. The adhesive film is used so as to be interposed between the thermally-fusible resin layers at a position where the thermally-fusible resin layers are thermally fused together. The adhesive film has a multilayer structure, and the adhesive film includes at least one layer having a cross-sectional hardness, as measured in an environment at a temperature of 110°C, of 15 N/mm2 or greater. In addition, the adhesive film includes at least one resin layer L having a melting peak temperature of 100-135°C.

公开(公告)号：EP4415135A1

公开(公告)日：2024-08-14

申请号：EP22878601.8

申请日：2022-10-06

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： SASAKI, Miho

IPC: H01M50/197 ,  B65D65/40 ,  H01M10/04 ,  H01M50/105 ,  H01M50/121 ,  H01M50/129 ,  H01M50/184 ,  H01M50/193 ,  H01M50/198 ,  H01M50/342 ,  H01M50/375

CPC classification number: Y02E60/10 ,  B65D65/40 ,  H01M10/04 ,  H01M50/105 ,  H01M50/121 ,  H01M50/129 ,  H01M50/184 ,  H01M50/193 ,  H01M50/197 ,  H01M50/198 ,  H01M50/342 ,  H01M50/375

Abstract: Provided is an adhesive film for use in a power storage device, wherein: the power storage device has a structure in which a power storage device element is accommodated in a package body formed of a power storage device exterior material; the power storage device exterior material is composed of a laminate including, in order from the outside, at least a base layer, a barrier layer, and thermally fusible resin layers; the power storage device element is accommodated in the package body by thermally fusing together the thermally fusible resin layers of the power storage device exterior material; the adhesive film is used so as to be interposed between the thermally fusible resin layers, at a position where the thermally fusible resin layers are thermally fused; the adhesive film includes at least a resin layer A and an adhesive layer P; the melting peak temperature of the resin layer A is at least 135°C; and the melting peak temperature of the adhesive layer P is no more than 100°C.

公开(公告)号：EP3671898B1

公开(公告)日：2024-08-14

申请号：EP19792234.7

申请日：2019-01-24

IPC: H01M50/178 ,  H01M50/325 ,  H01M50/333 ,  H01M50/342 ,  H01M50/531 ,  H01M50/55 ,  H01M50/105 ,  H01M50/553 ,  H01M50/588 ,  H01M50/595 ,  H01M50/119 ,  H01M50/121 ,  H01M50/129

CPC classification number: Y02E60/10 ,  H01M50/325 ,  H01M50/333 ,  H01M50/342 ,  H01M50/588 ,  H01M50/595 ,  H01M50/129 ,  H01M50/105 ,  H01M50/531 ,  H01M50/119 ,  H01M50/178 ,  H01M50/55 ,  H01M50/553 ,  H01M50/121

公开(公告)号：EP4411944A1

公开(公告)日：2024-08-07

申请号：EP23154537.7

申请日：2023-02-01

Applicant: LG Energy Solution, Ltd.

Inventor： OH, Jung Hyun

IPC: H01M50/105

CPC classification number: H01M50/105 ,  B29C2043/02220130101 ,  B32B15/20 ,  B29C43/02 ,  B29L2031/346820130101 ,  B29C53/40 ,  B29C63/04

Abstract: In a pouch-type battery case (10) which is configured to accommodate an electrode assembly (21) having a structure in which electrodes (23, 25) and separators (24) are alternately arranged, the battery case (10) comprises a pouch film (1) having a film thickness (d1), a first surface (31) and a second surface (34), a first cup portion (13) formed in the pouch film (1) having a recessed shape offset from the first surface (31) towards the second surface (34); a second cup portion (15) formed in the pouch film (1) having a recessed shape offset from the first surface (31) towards the second surface (34); and a bridge portion (14) formed in the pouch film (1) between the first cup portion (13) and the second cup portion (15) and connecting the first cup portion (13) to the second cup portion (15); the bridge portion (14) includes a notch (41) formed in the first surface (31) projecting towards the second surface (34).

公开(公告)号：EP4411906A1

公开(公告)日：2024-08-07

申请号：EP23154542.7

申请日：2023-02-01

Applicant: Cellforce Group GmbH

Inventor： Gräf, Jürgen

IPC: H01M10/04 ,  H01M10/052 ,  H01M50/105 ,  H01M50/124 ,  H01M50/609 ,  H01M50/673

CPC classification number: H01M50/105 ,  H01M10/04 ,  H01M10/052 ,  H01M50/124 ,  H01M50/609 ,  H01M50/673 ,  H01M50/394

Abstract: The invention relates to a method (50) for manufacture a battery cell (100), wherein a battery cell housing blank (10) with a first side (11) and a second side (12) is provided, wherein the first side (11) and the second side (12) are connected by a folding edge (30), wherein a first cavity (31) is formed or provided at the first side (11) and a second cavity (32) is formed or provided at the second side (12), and wherein the first side (11) and/or the second side (12) comprises at least one third cavity (33), wherein the first side (11) and the second side (12) are folded along the folding edge (30) and wherein the first side (11) and the second side (12) are sealed along at least two edges abutting against the folding edge (30) with a remaining opening (15), wherein battery cell components (200) are placed inside a space (14) formed by the first cavity (31) and/or the second cavity (32) and an electrolyte solution (110) is filled into the first cavity (31), the second cavity (32) and the at least one third cavity (33), wherein the opening (15) is sealed or closed after filling of the electrolyte solution (110), wherein gaseous components are vented into the at least one third cavity (33). Furthermore, the invention relates to a battery cell housing blank (10), to a manufacturing state battery cell (20) and to an electrochemical cell (100).

公开(公告)号：EP4407760A1

公开(公告)日：2024-07-31

申请号：EP23220627.6

申请日：2023-12-28

Applicant: Youlchon Chemical Co., Ltd.

Inventor： SONG, Nok Jung ,  HAN, Hee Sik ,  JANG, Jee Eun ,  LEE, Doohee ,  KIM, Geon Ryong ,  KIM, Yoohan

IPC: H01M50/105 ,  B29C48/08 ,  B32B7/02 ,  B32B15/085 ,  B32B27/32 ,  H01M50/119 ,  H01M50/121 ,  H01M50/126 ,  H01M50/131 ,  H01M50/183 ,  H01M50/186 ,  H01M10/0525

CPC classification number: H01M50/126 ,  H01M50/131 ,  H01M50/119 ,  H01M50/121 ,  H01M50/105 ,  H01M10/0525 ,  H01M50/183 ,  H01M50/186 ,  B29C48/08 ,  B32B7/02 ,  B32B15/085 ,  B32B27/32

Abstract: Disclosed is a cell pouch film, comprising at least an outer layer, a barrier layer, and a sealant layer structured in that order, wherein the sealant layer is formed by extrusion on the barrier layer, wherein the sealant layer has a glass transition temperature (Tg) of -10°C to -7°C, and wherein a crystallinity of the sealant layer is 28% to 32%, a preparation method thereof, a secondary battery using the cell pouch film, and a manufacturing method for the secondary battery. The sealing strength of the pouch film may be maintained or increased at high temperatures, thereby providing excellent high-temperature stability, which prevents electrolyte leakage during battery use in high-temperature environments and ensures battery safety with fewer defects.

公开(公告)号：EP3497731B1

公开(公告)日：2024-07-31

申请号：EP17839952.3

申请日：2017-03-28

IPC: H01M10/12 ,  H01M10/613 ,  H01M10/647 ,  H01M10/04 ,  H01M10/658 ,  H01M10/6554 ,  H01M10/6551 ,  H01M10/625 ,  H01M50/211 ,  H01M50/224 ,  H01M50/24 ,  H01M50/271 ,  H01M50/375 ,  H01M50/502 ,  H01M50/284 ,  H01M50/296 ,  H01M50/105

CPC classification number: H01M2200/1020130101 ,  H01M10/6554 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6551 ,  H01M10/658 ,  H01M10/0481 ,  H01M2220/2020130101 ,  Y02E60/10 ,  H01M50/375 ,  H01M50/502 ,  Y02P70/50 ,  H01M50/105 ,  H01M50/284 ,  H01M50/296 ,  H01M50/224 ,  H01M50/24 ,  H01M50/211 ,  H01M50/271

公开(公告)号：EP4404340A1

公开(公告)日：2024-07-24

申请号：EP22870031.6

申请日：2022-09-15

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： KAGATA, Tsubasa ,  TABUCHI, Naoto ,  SASAKI, Miho ,  OKANO, Ai

IPC: H01M50/105 ,  H01G11/78 ,  H01M50/121 ,  H01M50/129

CPC classification number: Y02E60/10 ,  H01M50/105 ,  H01G11/78 ,  H01M50/121 ,  H01M50/129

Abstract: An exterior material for a power storage device, said exterior material constituted from a laminate that at least comprises a base material layer, a barrier layer, and a heat-fusible resin layer in the stated order, wherein the heat-fusible resin layer includes a film, and the film has a tensile elongation at break in a 150°C environment of 750% or more.