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:
Jul. 30, 2024

Filed:

Apr. 08, 2020
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Min Hee Park, Daejeon, KR;

Sang Jun Park, Daejeon, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 50/30 (2021.01); H01M 50/317 (2021.01); H01M 50/325 (2021.01); H01M 50/333 (2021.01);
U.S. Cl.
CPC ...
H01M 50/394 (2021.01);
Abstract

A secondary battery and a battery pack including the secondary battery are disclosed. According to one aspect of the present invention, the secondary battery includes: a waterproof part configured to surround at least a portion of a circumference of the electrode assembly so that a gas within the exterior passes through the waterproof part, but a liquid within the exterior does not pass through the waterproof part; and a vent part provided in an inner surface of the exterior to provide a path through which the gas within the exterior is discharged to the outside when an internal pressure of the exterior exceeds a certain value.


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