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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 10633492 B1

PDFFull Text
Date of Patent:
Apr. 28, 2020

Filed:

Dec. 17, 2015

Lithium secondary battery anode and lithium secondary battery including same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Taek Gyoung Kim, Daejeon, KR;

Min Chul Jang, Daejeon, KR;

Byoung Kuk Son, Daejeon, KR;

Doo Kyung Yang, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Andrew J Oyer

Int. Cl.
CPC ...
C08G 77/16 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 4/1395 (2010.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/58 (2010.01); H01M 4/66 (2006.01); H01M 10/052 (2010.01); H01M 4/139 (2010.01); H01M 4/36 (2006.01); H01M 2/02 (2006.01); H01M 4/485 (2010.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
C08G 77/16 (2013.01); H01M 4/0407 (2013.01); H01M 4/134 (2013.01); H01M 4/139 (2013.01); H01M 4/1395 (2013.01); H01M 4/382 (2013.01); H01M 4/5815 (2013.01); H01M 4/622 (2013.01); H01M 4/623 (2013.01); H01M 4/661 (2013.01); H01M 4/666 (2013.01); H01M 4/667 (2013.01); H01M 4/668 (2013.01); H01M 10/052 (2013.01); H01M 2/0217 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/525 (2013.01); H01M 2004/027 (2013.01); H01M 2300/0042 (2013.01);
Abstract

The present invention relates to a negative electrode for lithium secondary battery and a lithium secondary battery including the same. The negative electrode includes a negative electrode active layer comprising lithium, and a protective layer disposed on the negative electrode active layer, wherein the protective layer comprises a polymer matrix having a three dimensional crosslinked network structure of polymer or includes a non-crosslinked linear polymer, and an electrolyte in the polymer matrix in the amount of 100 to 1000 parts by weight based on 100 parts by weight of the polymer matrix. The negative electrode according to the present invention has no concern about loss of electrolyte and the resulting deterioration of battery life characteristics even during the repetitive charging/discharging of the battery and has improved battery stability due to the inhibition of growth of lithium dendrite.

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