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:
Jun. 08, 2021
Filed:
Jan. 02, 2017
Ecopro Bm Co., Ltd., Chungcheongbuk-do, KR;
Samsung Sdi Co., Ltd., Yongin-si, KR;
Moon Ho Choi, Chungcheongbuk-do, KR;
Jong Seung Shin, Chungcheongbuk-do, KR;
Hyun Jong Yu, Chungcheongbuk-do, KR;
Suk Yong Jeon, Chungcheongbuk-do, KR;
Eun Ok Oh, Chungcheongnam-do, KR;
Sang Wook Lee, Gyeonggi-do, KR;
Yoon Young Choi, Seoul, KR;
ECOPRO BM CO., LTD., Chungcheongbuk-Do, KR;
SAMSUNG SDI CO., LTD., Yongin-si, KR;
Abstract
The present invention relates to a method of producing a cobalt-coated precursor, the cobalt-coated precursor produced by the method and a positive electrode active material for a lithium secondary battery, the positive electrode active material which is prepared using the cobalt-coated precursor and, more particularly, to a method of preparing a new positive electrode active material having improved high capacity and stability by coating cobalt on the surface of a precursor in the precursor step, thereby improving characteristics of the precursor degraded when washed with water, and a positive electrode active material prepared by the method.