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. 10, 2016
Filed:
Jun. 10, 2013
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Enerceramic Inc, Seoul, KR;
IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY), Seoul, KR;
ENERCERAMIC INC, Seoul, KR;
Abstract
The present disclosure relates to a positive electrode active material precursor for a lithium secondary battery, a positive electrode active material manufactured by using thereof, and a lithium secondary battery comprising the same. More specifically, it relates to a positive electrode active material precursor for a lithium secondary battery as a secondary particle comprising transition metals, and formed by gathering of a plurality of primary particles having different a-axis direction length to c-axis direction length ratio, wherein the a-axis direction length to c-axis direction length ratio of the primary particle making up the secondary particle is increased from the center to the surface of the secondary particle; a positive electrode active material; and a lithium secondary battery comprising the same.