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:
Aug. 07, 2007
Filed:
Jan. 24, 2002
Hong-kyu Park, Taejeon, KR;
Yong-hoon Kwon, Yongin, KR;
Seong-yong Park, Taejeon, KR;
Mi-seon Kwak, Taejeon, KR;
Jong-moon Yoon, Taejeon, KR;
Joon-sung Bae, Taejeon, KR;
Jin-on Kim, Taejeon, KR;
Hong-Kyu Park, Taejeon, KR;
Yong-Hoon Kwon, Yongin, KR;
Seong-Yong Park, Taejeon, KR;
Mi-Seon Kwak, Taejeon, KR;
Jong-Moon Yoon, Taejeon, KR;
Joon-Sung Bae, Taejeon, KR;
Jin-On Kim, Taejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
Disclosed is a positive active material for a lithium secondary battery and a preparation method of the same that can improve cycle-life characteristics and storage characteristics at a high temperature by improving structural safety characteristics and electrochemical characteristics, by forming an overlayer comprising an oxide glass phase on the surface of the positive active material, and a lithium secondary battery comprising the positive active material.