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:
Jul. 14, 2020
Filed:
Jan. 21, 2015
Ecopro Bm Co., Ltd., Cheongju-si, Chungcheongbuk-do, KR;
Jik Soo Kim, Chungcheongbuk-do, KR;
Moon Ho Choi, Chungcheongbuk-do, KR;
Jin Kyeong Yun, Chungcheongbuk-do, KR;
Jae Yong Jung, Chungcheongbuk-do, KR;
Suk Yong Jeon, Chungcheongbuk-do, KR;
Jong Seung Shin, Chungcheongbuk-do, KR;
ECOPRO BM CO., LTD., Cheongju-si, Chungcheongbuk-do, KR;
Abstract
The present invention relates to a cathode active material for lithium secondary battery and a lithium secondary battery including the same, and more specifically it relates to a cathode active material for lithium secondary battery in which the lithium ion diffusion path in the primary particles is formed to exhibit directivity in the center direction of the particles, and a lithium secondary battery including the same. The cathode active material for lithium secondary battery of the present invention has a lithium ion diffusion path exhibiting specific directivity in the primary particles and the secondary particles, and thus not only the conduction velocity of the lithium ion is fast and the lithium ion conductivity is high but also cycle characteristics are improved as the crystal structure hardly collapses despite repeated charging and discharging.