Patent ID: 11955649
Assignee: CHANGZHOU MICROBAT TECHNOLOGY CO. LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A cover plate assembly for a lithium ion battery, comprising:
a cover plate body, provided at a middle portion thereof with a through hole which extends to a tube body, wherein the tube body protrudes from at least one surface of the cover plate body;
a pressure relief portion, located in the tube body and is in sealed communication with the tube body, the pressure relief portion is ring-shaped and is configured to crack and split from the cover plate body in response to deformation of the cover plate body; and
a central conductor, embraced by the pressure relief portion and runs through the pressure relief portion in an axial direction,
wherein the tube body protrudes from one of the surfaces of the cover plate body, the other surface is flush, and wherein the cover plate body, the pressure relief portion and the central conductor are flush at their respective sides away from the tube body.