US 11,688,907 B2
End cap assembly, battery cell and manufacturing method thereof, battery, and electric apparatus
Huasheng Su, Ningde (CN); Chengyou Xing, Ningde (CN); Wenlong Kang, Ningde (CN); Quankun Li, Ningde (CN); and Peng Wang, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Jun. 16, 2022, as Appl. No. 17/842,775.
Application 17/842,775 is a continuation of application No. PCT/CN2020/135949, filed on Dec. 11, 2020.
Prior Publication US 2022/0320643 A1, Oct. 6, 2022
Int. Cl. H01M 50/147 (2021.01); H01M 50/143 (2021.01); H01M 50/30 (2021.01); H01M 50/102 (2021.01); H01M 50/533 (2021.01); H01M 50/543 (2021.01)
CPC H01M 50/147 (2021.01) [H01M 50/102 (2021.01); H01M 50/143 (2021.01); H01M 50/30 (2021.01); H01M 50/533 (2021.01); H01M 50/543 (2021.01)] 16 Claims
OG exemplary drawing
 
1. An end cap assembly, comprising:
an end cap configured to close a housing of a battery cell, an explosion-proof mechanism being provided at the end cap and being configured to be actuated to release an internal pressure of the battery cell in response to thermal runaway occurring in the battery cell;
an adapting member configured to electrically connect an electrode assembly of the battery cell to an electrode terminal of the battery cell;
an isolating component provided between the adapting member and the end cap, and configured to insulate the adapting member from the end cap; and
a supporting member provided between the adapting member and the end cap;
wherein:
an orthographic projection of the adapting member on a first surface of the end cap at least partially overlaps an orthographic projection of the explosion-proof mechanism on the first surface of the end cap, the first surface being a surface of the end cap facing the housing;
the orthographic projection of the adapting member on the first surface at least partially overlaps an orthographic projection of the supporting member on the first surface, to enable the supporting member to support the adapting member to prevent the adapting member from blocking the explosion-proof mechanism when thermal runaway occurs in the battery cell; and
at least a portion of the adapting member and at least a portion of the isolating component are separated from each other by a spacing along a direction perpendicular to the first surface.