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.:
Date of Patent:
Nov. 29, 2022
Filed:
Feb. 01, 2019
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Dong Hun Lee, Daejeon, KR;
Young Uk Park, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Sung Bin Park, Daejeon, KR;
Dong Hwi Kim, Daejeon, KR;
Tae Gu Yoo, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01B 1/08 (2006.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01G 53/50 (2013.01); H01B 1/08 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/60 (2013.01); C01P 2004/53 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract
A positive electrode active material for a secondary battery includes a first positive electrode active material and a second positive electrode active material, wherein an average particle diameter (D) of the first positive electrode active material is twice or more than an average particle diameter (D) of the second positive electrode active material, and the second positive electrode active material has a crystallite size of 200 nm or more.