US 12,288,840 B2
Cylindrical battery cell, battery, electricity consuming device, manufacturing method and manufacturing system
Kai Wu, Ningde (CN); Chengyou Xing, Ningde (CN); Wenlong Kang, Ningde (CN); Huasheng Su, Ningde (CN); and Quankun Li, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Mar. 9, 2023, as Appl. No. 18/180,858.
Application 18/180,858 is a continuation of application No. PCT/CN2021/113171, filed on Aug. 18, 2021.
Claims priority of application No. 202011058155.2 (CN), filed on Sep. 30, 2020.
Prior Publication US 2023/0246223 A1, Aug. 3, 2023
Int. Cl. H01M 10/04 (2006.01); H01M 50/152 (2021.01); H01M 50/538 (2021.01); H01M 50/107 (2021.01); H01M 50/533 (2021.01); H01M 50/55 (2021.01); H01M 50/586 (2021.01); H01M 50/593 (2021.01)
CPC H01M 10/0422 (2013.01) [H01M 10/0409 (2013.01); H01M 50/152 (2021.01); H01M 50/538 (2021.01); H01M 10/0431 (2013.01); H01M 50/107 (2021.01); H01M 50/533 (2021.01); H01M 50/55 (2021.01); H01M 50/586 (2021.01); H01M 50/593 (2021.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11)] 14 Claims
OG exemplary drawing
 
1. A cylindrical battery cell, comprising:
a shell, comprising an opening;
an electrode assembly, disposed in the shell, the electrode assembly comprising a separator and a tab, along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab comprising a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell;
a cap;
a first insulating member; and
a second insulating member,
wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator,
the cap is configured to cover the opening and connected to the shell, the first insulating member is disposed on a side of the cap close to the electrode assembly, the first insulating member comprises a recess, and at least part of the first portion is accommodated in the recess,
the second insulating member surrounds the first insulating member and the second portion, and covers an edge of the first insulating member and an edge of the second portion.