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. 24, 2012
Filed:
Jul. 03, 2008
Tetsuo Tokita, Minoh, JP;
Hideaki Maeda, Minoh, JP;
Naoya Kobayashi, Minoh, JP;
Sung-soo Kim, Suwon-si, KR;
Tetsuo Tokita, Minoh, JP;
Hideaki Maeda, Minoh, JP;
Naoya Kobayashi, Minoh, JP;
Sung-Soo Kim, Suwon-si, KR;
Samsung SDI Co., Ltd., Giheung-gu, Yongin-si, Gyeonggi-do, KR;
Abstract
The method of preparing a negative active material for a non-aqueous electrolyte rechargeable battery includes mixing a vanadium compound and a lithium compound and then subjecting the mixture to first firing to obtain Li(VM)Ohaving a layered halite type structure (where 0.5≦x≦1.0, 0≦y≦0.5, x+y=1, and M is selected from the group consisting of group 2 to 15 elements of the periodic table and combinations thereof); and adding a lithium compound to the Li(VM)Oand then subjecting the resultant to second firing. The negative active material for a non-aqueous electrolyte rechargeable battery prepared according to the preparing method has high crystallinity, and excellent charge and discharge characteristics at a high rate.