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:
May. 18, 2021
Filed:
May. 26, 2017
Posco Chemical Co., Ltd., Pohang-si, KR;
Su Bong Choi, Gumi-si, KR;
Chun Gu Kang, Seoul, KR;
Jeong Eun Choi, Chungcheongbuk-do, KR;
Seung Chang Jeong, Andong-si, KR;
Jae An Lee, Gumi-si, KR;
Jeong Han Kim, Gumi-si, KR;
POSCO CHEMICAL CO., LTD, Pohang-si, KR;
Abstract
The present invention relates to a lithium-titanium complex oxide used in an electrode active material. A preparation method of a lithium-titanium complex oxide according to the present invention comprises the steps of: preparing a slurry mixture in which a titanium oxide, lithium and zirconium are mixed; wet-milling the mixture using beads having a size of 0.30 mm or less to obtain a wet-milled mixture; spray drying the wet-milled mixture to obtain a spray dried mixture; and calcining the spray dried mixture.