US 11,984,608 B2
Battery cell, battery, power consumption apparatus, method and apparatus for producing battery cell
Dongsheng Sun, Ningde (CN); Kun Fang, Ningde (CN); Zhisheng Chai, Ningde (CN); Qingkui Chi, Ningde (CN); and Haizu Jin, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde (CN)
Filed on Jun. 23, 2022, as Appl. No. 17/847,347.
Application 17/847,347 is a continuation of application No. PCT/CN2021/077510, filed on Feb. 23, 2021.
Prior Publication US 2022/0320644 A1, Oct. 6, 2022
Int. Cl. H01M 50/147 (2021.01); H01M 50/102 (2021.01); H01M 50/317 (2021.01); H01M 50/533 (2021.01); H01M 50/543 (2021.01)
CPC H01M 50/147 (2021.01) [H01M 50/102 (2021.01); H01M 50/317 (2021.01); H01M 50/533 (2021.01); H01M 50/543 (2021.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A battery cell, comprising:
a housing, with a first opening;
an electrode assembly, arranged in the housing;
an end cover assembly, comprising an end cover, a pressure relief mechanism and a first insulating member,
the end cover covers the first opening, the pressure relief mechanism is arranged at the end cover,
the pressure relief mechanism is configured to be actuated to relieve the internal pressure of the battery cell when an internal pressure or temperature of the battery cell reaches a threshold,
the first insulating member is located on a side of the end cover close to the electrode assembly and in-between the electrode assembly and the end cover, and
the first insulating member is configured that a projection of the first insulating member on the end cover along a thickness direction of the end cover covers the pressure relief mechanism to protect the pressure relief mechanism;
an electrode terminal fixed to the end cover; and
an adapting member configured to be connected to the electrode terminal and the electrode assembly;
wherein the pressure relief mechanism and the first insulating member are configured with a first gap formed between the end cover and a base wall of the first insulating member, the base wall arranged opposite to the end cover in the thickness direction of the end cover, the battery cell further comprises a flow path, and the flow path is configured to communicate the inside of the battery cell with the first gap;
wherein the first insulating member includes a second opening configured to allow gas inside the battery cell to pass through the first insulating member and reach the pressure relief mechanism when the internal pressure of the battery cell reaching toward the threshold; and
wherein the base wall of the first insulating member presses against the adapting member in the thickness direction of the end cover.