The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 17, 2016

Filed:

Apr. 02, 2014
Applicant:

Ningde Contemporary Amperex Technology Limited, NingDe, CN;

Inventors:

Shilin Huang, NingDe, CN;

Junzhong Hu, NingDe, CN;

Pinghua Deng, NingDe, CN;

Assignee:

Contemporary Amperex Technology Co., Limited, Ningde, Fujian Province, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/34 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 2/345 (2013.01); H01M 10/0525 (2013.01); H01M 2200/20 (2013.01);
Abstract

The present disclosure provides a lithium-ion battery and a deformable safety valve as an overcharge protection device thereof. The deformable safety valve as the overcharge protection device of the lithium-ion battery comprises a short-circuit conductive plate and a deformable plate made from aluminum, a facing surface of the deformable plate being coated with a metal layer to reduce contact resistance between the deformable plate and the short-circuit conductive plate. The lithium-ion battery comprises a first electrode post; a cap plate electrically connected to the first electrode post; an electrolyte-injection hole provided in the cap plate; a vent provided in the cap plate; a deformable safety valve provided to the cap plate; and a second electrode post assembled to the cap plate in an insulating manner; wherein the deformable safety valve is the above deformable safety valve as the overcharge protection device of the lithium-ion battery.


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