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:
Jan. 29, 2013
Filed:
Aug. 11, 2008
Tomonari Takeuchi, Ikeda, JP;
Hikari Sakaebe, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Kuniaki Tatsumi, Ikeda, JP;
Tomonari Takeuchi, Ikeda, JP;
Hikari Sakaebe, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Kuniaki Tatsumi, Ikeda, JP;
Abstract
The present invention provides a production process of a metal sulfide, which includes placing a metal component and sulfur in a conductive container, and applying a pulsed direct current to the container in a non-oxidizing atmosphere to cause the metal component to react with sulfur, and also provides a metal sulfide obtained by the process and represented by a composition formula: MS, wherein M is at least one member selected from the group consisting of Ni, Cu, Fe, and Co, and 1<x≦2. The present invention is capable of easily producing a metal sulfide with a high proportion of sulfur atoms, which is expected to exhibit excellent properties as a positive-electrode active material for a high capacity lithium secondary battery.