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:
Apr. 13, 2004
Filed:
Dec. 19, 2000
Applicant:
Inventors:
Mitsuharu Tabuchi, Ikeda, JP;
Kazuaki Ado, Ikeda, JP;
Hironori Kobayashi, Ikeda, JP;
Hikari Sakaebe, Ikeda, JP;
Hiroyuki Kageyama, Ikeda, JP;
Assignee:
Secretary, Agency of Industrial Science and Technology, Tokyo-to, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/48 ;
U.S. Cl.
CPC ...
H01M 4/48 ;
Abstract
The present invention provides a single-phase lithium ferrite based oxide which is suitable as a cathode material for a secondary battery, a process for preparing the oxide, and its uses, the oxide having a layered rock salt-type structure and comprising lithium ferrite (LiFeO )−Li MO solid solution wherein M is at least one species selected from the group consisting of Mn, Ti and Sn, 0≦x<2, 0≦y≦1 such that the proportion of iron is ≦Fe/(Fe+M)≦0.9.