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:
Aug. 31, 2021

Filed:

May. 30, 2018
Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Chanyeup Chung, Daejeon, KR;

Minchul Jang, Daejeon, KR;

Kyoung Hoon Kim, Daejeon, KR;

Youngcheol Choi, Daejeon, KR;

Byoungkuk Son, Daejeon, KR;

Junghun Choi, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/66 (2006.01); H01M 4/134 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/134 (2013.01); H01M 4/662 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01);
Abstract

A negative electrode including an electrode protective material and a lithium secondary battery including the negative electrode, wherein the negative electrode containing the protective material can inhibit the growth of lithium dendrite on the surface of the electrode, effectively transfer lithium ions to the lithium metal electrode and has an excellent ion conductivity, and thus the protective layer itself including the protective material does not act as a resistive layer, overvoltage is not applied during charging and discharging, thereby preventing degradation of the performance of the battery and ensuring stability when driving the battery.


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