公开(公告)号：US20240039091A1

公开(公告)日：2024-02-01

申请号：US18357652

申请日：2023-07-24

申请人： AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/174

CPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/182 ,  H01M10/0431

摘要： A battery cell includes a battery element, a front lid member covering one end portion of the battery element in a predetermined direction, and an exterior film at least partially wrapped around the predetermined direction of the battery element. The exterior film is rounded along the battery element in at least one corner of the battery element around the predetermined direction.

公开(公告)号：US20230062772A1

公开(公告)日：2023-03-02

申请号：US17759920

申请日：2021-01-28

申请人： ENVISION AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/536 ,  H01M50/538

摘要： A plurality of first current collector parts (112a) are drawn out from a stacked part (100a). An exterior material (200) encloses a battery element (100). A first tab (310) is connected to the plurality of first current collector parts (112a). The plurality of first current collector parts (112a) between the stacked part (100a) and the first tab (310) have a first region (RG1). In the first region (RG1), a thickness of a bundle including the plurality of first current collector parts (112a) in a third direction (Z) decreases from the stacked part (100a) to the first tab (310), and a decrease rate of the thickness decreases from the stacked part (100a) to the first tab (310).

公开(公告)号：US20240039092A1

公开(公告)日：2024-02-01

申请号：US18358416

申请日：2023-07-25

申请人： AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/548

CPC分类号： H01M50/15 ,  H01M50/103 ,  H01M50/548

摘要： A battery cell includes a battery element, a positive electrode tab electrically connected to the battery element, a front lid member covering an end portion of the battery element with the positive electrode tab drawn from the front lid member, and an exterior film at least partially wrapped around the battery element. At least a part of the front lid member covers at least a part of an end portion of the exterior film.

公开(公告)号：US20240030523A1

公开(公告)日：2024-01-25

申请号：US18355137

申请日：2023-07-19

申请人： AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/171 ,  H01M50/176 ,  H01M50/186

CPC分类号： H01M50/171 ,  H01M50/176 ,  H01M50/186

摘要： A battery cell includes a battery element, a positive electrode tab electrically connected to the battery element, a front lid member covering one end of the battery element with the positive electrode tab drawn from the front lid member, and a front bonding member bonding the front lid member and the positive electrode tab to each other.

公开(公告)号：US20230018933A1

公开(公告)日：2023-01-19

申请号：US17782149

申请日：2020-11-26

申请人： ENVISION AESC JAPAN LTD.

发明人： Aika OOKA

IPC分类号： H01M50/105

摘要： A film (200) includes a first accommodation portion (210) and a second accommodation portion (220). The first accommodation portion (210) covers one side of the battery element (100). The second accommodation portion (220) covers the other side opposite to the one side of the battery element (100). A recessed portion (232) is formed at a portion of the film (200) folded from one of the first accommodation portion (210) and the second accommodation portion (220) to the other. The recessed portion (232) is recessed towards the battery element (100). The recessed portion (232) extends along one direction orthogonal to a direction from the one side toward the other side of the battery element (100).