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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 10868294 B1

PDFFull Text
Date of Patent:
Dec. 15, 2020

Filed:

Jul. 26, 2018

Positive electrode for lithium secondary battery and lithium secondary battery including same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Kyung-Min Kim, Daejeon, KR;

Jung-Seok Choi, Daejeon, KR;

Song-Taek Oh, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:

Morgan, Lewis & Bockius LLP

Primary Examiner:

Amanda C Walke

Int. Cl.
CPC ...
H01M 4/131 (2010.01); H01M 4/04 (2006.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01); H01M 4/133 (2010.01); C01G 51/06 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); C01G 51/06 (2013.01); H01M 4/0404 (2013.01); H01M 4/133 (2013.01); H01M 4/1391 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/622 (2013.01); H01M 10/0525 (2013.01); H01M 10/42 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode for a lithium secondary battery includes a positive electrode current collector, a positive electrode active material layer, and a primer layer formed between the positive electrode current collector and the positive electrode active material layer. The primer layer includes lithium carbonate (LiCO) particles having two or more different particle diameters, a binder polymer, and a conductive material. The lithium secondary battery attains the overcharge cutoff voltage rapidly by virtue of the gas generated between the positive electrode current collector and the positive electrode active material layer, in an overcharged state. Thus, it is possible to ensure the safety of the lithium secondary battery.

Find Patent Forward Citations

Kim, Kyung-Min. (2020). Positive electrode for lithium secondary battery and lithium secondary battery including same (U.S. Patent No. 10868294). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10868294

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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