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:
Apr. 14, 2020
Filed:
Feb. 14, 2018
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Dae Jin Lee, Daejeon, KR;
Dong Hun Lee, Daejeon, KR;
Ji Hoon Ryu, Daejeon, KR;
Gi Beom Han, Daejeon, KR;
Dong Hwi Kim, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Sang Wook Lee, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/052 (2010.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 10/42 (2006.01); H01M 4/02 (2006.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 10/052 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/62 (2013.01); H01M 10/4235 (2013.01); H01M 4/366 (2013.01); H01M 2004/028 (2013.01);
Abstract
The present invention relates to a positive electrode active material for a secondary battery, which comprises a core including a lithium composite metal oxide, and a surface treatment layer located on a surface of the core and including an amorphous oxide, wherein the amorphous oxide including silicon (Si), nitrogen (N) and at least one metal element selected from the group consisting of a Group 1A element, a Group 2A element, and a Group 3B element, and a method for preparing the same.