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. 25, 2012
Filed:
Aug. 24, 2009
Jun-sik Kim, Suwon-si, KR;
Eui-hwan Song, Suwon-si, KR;
Kyeu-yoon Sheem, Suwon-si, KR;
Yong-chul Park, Suwon-si, KR;
Jin-kyu Hong, Suwon-si, KR;
Man-seok Han, Suwon-si, KR;
Tae-keun Kim, Suwon-si, KR;
Jun-Sik Kim, Suwon-si, KR;
Eui-Hwan Song, Suwon-si, KR;
Kyeu-Yoon Sheem, Suwon-si, KR;
Yong-Chul Park, Suwon-si, KR;
Jin-Kyu Hong, Suwon-si, KR;
Man-Seok Han, Suwon-si, KR;
Tae-Keun Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Gongse-dong, Giheung-gu, Yongin-si, Gyeonggi-do, KR;
Abstract
A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material for a rechargeable lithium battery includes lithium titanium oxide (LiTiO) having a tap density of about 1.2 g/cc to 2.2 g/cc. The lithium titanium oxide is prepared by a mechano-chemical treatment and a heat treatment at a low temperature of about 650° C. to 775° C. According to the present invention, lithium titanium oxide having high crystallinity and tap density can be prepared through a simple and low-cost solid-phase method, e.g., a mechano-chemical treatment, and thus an electrode with excellent electrochemical reactivity and high energy density per volume can be fabricated.