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:
Oct. 22, 2024
Filed:
Sep. 29, 2020
Ecopro Bm Co., Ltd., Cheongju-si, KR;
Moon Ho Choi, Cheongju-si, KR;
Jun Won Suh, Cheongju-si, KR;
Jin Kyeong Yun, Cheongju-si, KR;
Jung Han Lee, Cheongju-si, KR;
Mi Hye Yun, Cheongju-si, KR;
Seung Woo Choi, Cheongju-si, KR;
Gwang Seok Choe, Cheongju-si, KR;
Ye Ri Jang, Cheongju-si, KR;
Joong Ho Bae, Cheongju-si, KR;
ECOPRO BM CO., LTD., Cheongju-si, KR;
Abstract
The present invention relates to a lithium composite oxide capable of improving capacity and lifetime characteristics of a lithium secondary battery and a lithium secondary battery including the same. According to the present invention, since the atomic ratio of boron (B) and nickel (Ni) in the surface region of the lithium composite oxide including primary particles enabling lithium intercalation and deintercalation and secondary particles formed by aggregating the primary particles is in a specific range, the stability of the lithium composite oxide may be improved, and thus it is possible to improve the capacity and lifetime characteristics of the lithium secondary battery using the lithium composite oxide as a positive electrode active material.