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. 01, 2014
Filed:
Nov. 17, 2004
Yang Kook Sun, Seoul, KR;
Myoung Hun Lee, Seoul, KR;
Yoon Jung Kang, Chungcheongnam-do, KR;
Gil Ho Kim, Gyeongsangnam-do, KR;
Yang Kook Sun, Seoul, KR;
Myoung Hun Lee, Seoul, KR;
Yoon Jung Kang, Chungcheongnam-do, KR;
Gil Ho Kim, Gyeongsangnam-do, KR;
Abstract
The present invention relates to a cathode active material for a lithium secondary battery and a process for preparing the same. In accordance with the present invention, the cathode active material having a high packing density was designed and synthesized and thus provided is a cathode active material for a lithium secondary battery exhibiting structural stability such as improved characteristics for charge/discharge, service life and high-rate and thermal stability, by modifying surface of the electrode active material with amphoteric or basic compounds capable of neutralizing acid produced around the cathode active material.