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:
Feb. 11, 2020
Filed:
Aug. 30, 2017
Lg Chem, Ltd., Seoul, KR;
Sung-Kyun Chang, Daejeon, KR;
Hong Kyu Park, Daejeon, KR;
Sin Young Park, Daejeon, KR;
Jin-hyung Lim, Daejeon, KR;
DongHun Lee, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Disclosed is a cathode active material for secondary batteries comprising at least one compound selected from the following formula 1:(1−)[Li(LiMnNiCo)O]*[LiCO]*[LiOH]  (1)wherein 0<a<0.2, 0<x<0.9, 0<y<0.5, a+x+y<1, 0<s<0.03, and 0<t<0.03; and a, x and y represent a molar ratio, and a and t represent a weight ratio. The cathode active material has long lifespan at room temperature and high temperatures and provides superior stability, although charge and discharge are repeated at a high current.