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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.

Patent No.:

US 11322731 B1

PDFFull Text
Date of Patent:
May. 03, 2022

Filed:

Jun. 21, 2018

Lithium secondary battery

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Eunkyung Park, Daejeon, KR;

Minchul Jang, Daejeon, KR;

Suk Il Youn, Daejeon, KR;

Byoungkuk Son, Daejeon, KR;

Junghun Choi, Daejeon, KR;

Bora Jung, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Victoria H Lynch

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/40 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/04 (2013.01); H01M 4/364 (2013.01); H01M 4/405 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/621 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A lithium secondary battery which is made of an anode-free battery and includes lithium metal formed on a negative electrode current collector by charging. The lithium secondary battery includes the lithium metal formed on the negative electrode current collector in a state of being shielded from the atmosphere, so that the generation of a surface oxide layer (native layer) formed on the negative electrode according to the prior art does not occur fundamentally, thereby preventing the deterioration of the efficiency and life characteristics of the battery.

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