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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 10199644 B1

PDFFull Text
Date of Patent:
Feb. 05, 2019

Filed:

Dec. 29, 2015

Lithium secondary battery

Applicant:

SK Innovation Co., Ltd., Seoul, KR;

Inventors:

Duck-Chul Hwang, Suwon-si, KR;

Kyung-Bin Yoo, Daejeon, KR;

Kook-Hyun Han, Daejeon, KR;

Assignee:

SK Innovation Co., Ltd., Seoul, KR;

Attorney:

The Webb Law Firm

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/364 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

Disclosed is a lithium secondary battery, including a cathode, an anode and a non-aqueous electrolyte, wherein the cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a concentration gradient region between a core part and a surface part thereof, and the anode includes hard carbon having an average lattice distance (d) in the range of 3.6 to 3.8 Å and graphite having-an average lattice distance (d) in the range of 3.356 to 3.360 Å, such that output and high-temperature storage properties may be improved.

Find Patent Forward Citations

Hwang, Duck-Chul. (2019). Lithium secondary battery (U.S. Patent No. 10199644). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10199644

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

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