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    BATTERY MODULE AND BATTERY PACK INCLUDING SAME
    2.
    发明公开
    BATTERY MODULE AND BATTERY PACK INCLUDING SAME 审中-公开

    公开(公告)号：EP4498501A1

    公开(公告)日：2025-01-29

    申请号：EP23900817.0

    申请日：2023-08-10

    Applicant: LG Energy Solution, Ltd.

    Inventor： UHM, Jae Yong

    IPC: H01M50/503 ,  H01M50/533 ,  H01M50/211 ,  H01M50/105

    Abstract: A battery module according to an embodiment of the present disclosure includes: a battery cell stack in which battery cells are stacked along a first direction; and at least one busbar located on one side or both sides of the battery cell stack. An electrode lead protrudes from the battery cell along a second direction perpendicular to the first direction. The busbar includes a first portion, and a second portion that extends from the first portion at a certain angle with one surface of the first portion, and the electrode lead is joined to the second portion.

    SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY
    3.
    发明公开
    SECONDARY BATTERY AND METHOD OF MANUFACTURING SECONDARY BATTERY 审中-公开

    公开(公告)号：EP4496055A2

    公开(公告)日：2025-01-22

    申请号：EP24185013.0

    申请日：2024-06-27

    Applicant: Mazda Motor Corporation

    Inventor： KOYAMA, Masanari ,  ISHIKAWA, Takaaki ,  KAJIMOTO, Takanori

    IPC: H01M10/04 ,  H01M10/42 ,  H01M50/105 ,  H01M50/124 ,  H01M50/178 ,  H01M50/46 ,  H01M50/466

    Abstract: A secondary battery 1 includes a negative electrode 3 and a positive electrode 4 that are immersed in electrolytic liquid, and a separator 33 that separates the negative electrode and the positive electrode from each other, wherein the negative electrode has a current collector (negative electrode current collector 31) and a mixture layer (negative electrode mixture layer 32), the mixture layer has a main surface 34 that faces the positive electrode via the separator and a side face (first side face 35) that makes connection between the main surface and the current collector, and the separator at least covers the mixture layer of the negative electrode in a state of being in contact with the main surface and the side face.

    DEVICE FOR FOLDING POUCH FOR SECONDARY BATTERY AND SECONDARY BATTERY
    5.
    发明公开
    DEVICE FOR FOLDING POUCH FOR SECONDARY BATTERY AND SECONDARY BATTERY 审中-公开

    公开(公告)号：EP4484132A1

    公开(公告)日：2025-01-01

    申请号：EP23760397.2

    申请日：2023-02-23

    Applicant: LG Energy Solution, Ltd.

    Inventor： HAN, Myoung Hun ,  KIM, Jin Young ,  CHANG, Won Seok ,  KIM, Nam Geol

    IPC: B29C65/00 ,  B29C65/78 ,  H01M50/105 ,  B29L31/00

    Abstract: The present invention relates to a pouch folding device for a secondary battery and a secondary battery, and the pouch folding device for the secondary battery, which folds a pouch including a body, in which an electrode assembly is accommodated, and a sealing part disposed on an edge of the body, includes: a side folding part configured to side-fold the sealing part of the pouch toward the body; and a corner folding part comprising a corner folding roller configured to press a corner portion at the side-folded sealing part to fold a corner toward the body, wherein the corner folding roller comprises a flat surface and an inclined surface, and the inclined surface of the corner folding roller during the pressing is disposed closer to the body than the flat surface.

    ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE
    6.
    发明公开
    ELECTROCHEMICAL APPARATUS AND ELECTRICAL DEVICE 审中-公开

    公开(公告)号：EP4478499A1

    公开(公告)日：2024-12-18

    申请号：EP22929382.4

    申请日：2022-03-04

    Applicant: Ningde Amperex Technology Ltd.

    Inventor： MA, Cong ,  DENG, Daolin ,  CHEN, Wen ,  LI, Xun

    IPC: H01M50/186 ,  H01M50/105 ,  H01M50/184

    Abstract: An electrochemical apparatus, including a housing. The housing includes a main body part and a sealed part extending outward from an edge of the main body part. The main body part is configured to accommodate an electrode assembly. The sealed part includes a first outer edge, an outer arc edge, and a second outer edge. The outer arc edge connects the first outer edge and the second outer edge. The outer arc edge protrudes toward the main body part. A minimum curvature radius of the outer arc edge is r min mm, satisfying: r min ≥0.3, which can reduce the stress concentration at the outer arc edge of the sealed part under drop conditions, thereby reducing the risk of tear and damage to the sealed part of a battery under drop conditions, which otherwise causes safety accidents.

    LAMINATED BATTERY AND METHOD OF MANUFACTURING LAMINATED BATTERY
    10.
    发明公开
    LAMINATED BATTERY AND METHOD OF MANUFACTURING LAMINATED BATTERY 审中-公开

    公开(公告)号：EP4379880A3

    公开(公告)日：2024-11-20

    申请号：EP23210268.1

    申请日：2023-11-16

    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

    Inventor： KAKISHITA, Kenichi

    IPC: H01M10/04 ,  H01M10/0585 ,  H01M50/105 ,  H01M50/133

    Abstract: A laminated battery has an electrode body and a laminate sheet covering the electrode body, and has a fused portion at which one end side and another end side of the laminate sheet that covers the electrode body are fused together. The fused portion has a step portion at which a thickness of a region near the electrode body side is thinner than a thickness of a region far from the electrode body side. Ratio (L S1 /L E ) of outer peripheral length L E of the electrode body and inner peripheral length Lsi of the laminate sheet that covers the electrode body is greater than or equal to 1.00 and less than or equal to 1.05.

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