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:
Jun. 29, 2021

Filed:

Jun. 29, 2018
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Kyung Hwa Woo, Daejeon, KR;

Jae Hyun Lee, Sejong, KR;

Jong Keon Yoon, Daejeon, KR;

Hoe Jin Hah, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 10/52 (2006.01); H01M 4/1395 (2010.01); H01M 4/38 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/0445 (2013.01); H01M 4/1395 (2013.01); H01M 4/382 (2013.01); H01M 10/052 (2013.01);
Abstract

A method of manufacturing a secondary battery using lithium metal as a negative electrode, and more particularly, a method of manufacturing a secondary battery capable of removing an oxide film formed on a lithium metal by performing some initial discharges during the initial period of the activation process to thereby improve the cycling performance of the battery by allowing lithium to be uniformly precipitated. The result minimizes the reduction of ion conductivity by removing the oxide film formed on the surface of the lithium metal through the initial partial discharge and improves the battery cycle performance since the precipitation reaction of lithium becomes uniform.


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