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:
Sep. 22, 2009
Filed:
Mar. 07, 2007
Applicants:
Changjoo Han, Seoul, KR;
Jonghwan Kim, Seo-gu Daejeon, KR;
Dong-su Kim, Daejeon, KR;
Hojin Jeon, Seoul, KR;
Inventors:
Changjoo Han, Seoul, KR;
Jonghwan Kim, Seo-gu Daejeon, KR;
Dong-Su Kim, Daejeon, KR;
Hojin Jeon, Seoul, KR;
Assignee:
LG Chem, Ltd., , KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/60 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a secondary battery comprising a lithium transition metal oxide as a cathode active material, wherein an organic ammonium compound is added to a cathode and/or is coated on a separator. Therefore, the secondary battery according to the present invention can achieve improvements in residual capacity and recovery capacity even after high-temperature storage of the battery, simultaneously with improved power retention of the battery at low and high temperatures.