公开(公告)号：EP4333130A3

公开(公告)日：2024-04-03

申请号：EP23193866.3

申请日：2023-08-29

申请人： Ningde Amperex Technology Ltd.

发明人： HUANG, Shaojun ,  LAO, Shaojiang ,  LAI, Shibin ,  ZHU, Aosheng

IPC分类号： H01M4/66 ,  H01M50/105 ,  H01M50/119 ,  H01M50/134 ,  H01M50/136 ,  H01M4/02 ,  H01M4/04

摘要： A battery cell (100) includes an electrode assembly (10) and a packaging bag (20). The electrode assembly (10) includes first electrode plates (11), second electrode plates (12) and separators (13). The first electrode plates (11) include two outer electrode plates (11a) and at least one inner electrode plate (11b) . In the first direction, the two outer electrode plates (11a) are disposed on two outermost sides of the electrode assembly (10) respectively, the inner electrode plate (11b) is disposed between the two outer electrode plates (11a), and the second electrode plates (12) are disposed between the two outer electrode plates (11a) . The packaging bag (20) includes a metal layer (21), and a relationship between a first strength S1 of the first current collectors (111) in the outer electrode plates (11a) and a second strength S2 of the metal layer (21) satisfies: 0.2 ≤ S1/S2 ≤ 0.5.

公开(公告)号：EP4333130A2

公开(公告)日：2024-03-06

申请号：EP23193866.3

申请日：2023-08-29

申请人： Ningde Amperex Technology Ltd.

发明人： HUANG, Shaojun ,  LAO, Shaojiang ,  LAI, Shibin ,  ZHU, Aosheng

IPC分类号： H01M4/66 ,  H01M50/105 ,  H01M50/119 ,  H01M50/134 ,  H01M50/136 ,  H01M4/02 ,  H01M4/04

摘要： A battery cell (100) includes an electrode assembly (10) and a packaging bag (20). The electrode assembly (10) includes first electrode plates (11), second electrode plates (12) and separators (13). The first electrode plates (11) include two outer electrode plates (11a) and at least one inner electrode plate (11b) . In the first direction, the two outer electrode plates (11a) are disposed on two outermost sides of the electrode assembly (10) respectively, the inner electrode plate (11b) is disposed between the two outer electrode plates (11a), and the second electrode plates (12) are disposed between the two outer electrode plates (11a) . The packaging bag (20) includes a metal layer (21), and a relationship between a first strength S1 of the first current collectors (111) in the outer electrode plates (11a) and a second strength S2 of the metal layer (21) satisfies: 0.2 ≤ S1/S2 ≤ 0.5.

公开(公告)号：EP4203172A1

公开(公告)日：2023-06-28

申请号：EP20954463.4

申请日：2020-09-23

申请人： Ningde Amperex Technology Ltd.

发明人： LAI, Shibin ,  HUANG, Shaojun ,  LIN, Maocai ,  HE, Shifeng

IPC分类号： H01M50/531 ,  H01M50/183

摘要： This application provides a battery, including a packaging bag, an electrode assembly, an adapting member, and a sealing member. The electrode assembly is disposed in the packaging bag. The electrode assembly includes a first electrode plate and a first tab, and the first tab is electrically connected to the first electrode plate. A first end of the adapting member is connected to the first tab, and a second end of the adapting member protrudes from the packaging bag. The sealing member is disposed between the adapting member and the packaging bag. In a width direction of the battery, a width of the first tab is greater than or equal to a width of the sealing member. With an improved relationship in size between the first tab and the sealing member, the battery can effectively prevent the sealing member from piercing through the electrode plate when the battery falls down and can improve battery drop performance in a simple and effective way, without affecting the energy density or production process of the battery.