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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 10693196 B1

PDFFull Text
Date of Patent:
Jun. 23, 2020

Filed:

Dec. 21, 2016

Positive electrode active material for secondary battery and secondary battery including the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Ji Hye Kim, Daejeon, KR;

Young Uk Park, Daejeon, KR;

Wang Mo Jung, Daejeon, KR;

Sun Sik Shin, Daejeon, KR;

Sang Min Park, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Matthew J Merkling

Int. Cl.
CPC ...
H01M 10/42 (2006.01); C01G 53/00 (2006.01); C01F 7/04 (2006.01); C01F 7/02 (2006.01); H01M 4/36 (2006.01); C01G 51/00 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/4235 (2013.01); C01F 7/02 (2013.01); C01F 7/021 (2013.01); C01F 7/043 (2013.01); C01G 51/42 (2013.01); C01G 53/44 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/4242 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2002/54 (2013.01); C01P 2004/04 (2013.01); C01P 2004/32 (2013.01); C01P 2004/51 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2006/11 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided are a positive electrode active material for a secondary battery, in which, since the positive electrode active material includes a lithium-metal oxide having high-temperature stability and a metal oxide on a surface of a particle and a surface side in the particle, there is no concern about gas generation, because the occurrence of cracks on the surface of the active material is prevented during charge and discharge, and high-temperature storage stability and life characteristics may be improved when the positive electrode active material is used in the battery, and a secondary battery including the same.

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