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:
Aug. 18, 2020
Filed:
Jun. 22, 2017
Ecopro Bm Co., Ltd., Cheongju-si, Chungcheongbuk-do, KR;
Moon Ho Choi, Cheongju-si, KR;
Jik Soo Kim, Cheongju-si, KR;
Jin Kyeong Yun, Cheongju-si, KR;
Suk Yong Jeon, Chungju-si, KR;
Jae Yong Jung, Cheongju-si, KR;
Yong Chul Sung, Chungju-si, KR;
ECOPRO BM CO., LTD., Cheongju-si, KR;
Abstract
Disclosed are a method for manufacturing a lithium secondary battery positive active material exhibiting a concentration gradient and a lithium secondary battery positive active material exhibiting a concentration gradient, manufactured by the method, and more particularly, a method for manufacturing a lithium secondary battery positive active material exhibiting a concentration gradient and a lithium secondary battery positive active material exhibiting a concentration gradient, manufactured by the method, the method being characterized by forming a barrier layer so as to maintain a concentration gradient layer even in case of thermal diffusion by a subsequent thermal treatment process.