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. 19, 2016
Filed:
Jun. 17, 2011
Toshikatsu Kojima, Ikeda, JP;
Takuhiro Miyuki, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Akira Kojima, Kariya, JP;
Junichi Niwa, Kariya, JP;
Hitotoshi Murase, Kariya, JP;
Kazuhito Kawasumi, Kariya, JP;
Toshikatsu Kojima, Ikeda, JP;
Takuhiro Miyuki, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Akira Kojima, Kariya, JP;
Junichi Niwa, Kariya, JP;
Hitotoshi Murase, Kariya, JP;
Kazuhito Kawasumi, Kariya, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Aichi, JP;
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo, JP;
Abstract
A production process for lithium-silicate-based compound according to the present invention is characterized in that: a lithium-silicate compound being expressed by Li2SiO3 is reacted with a transition-metal-element-containing substance including at least one member being selected from the group consisting of iron and manganese at 550° C. or less within a molten salt including at least one member being selected from the group consisting of alkali-metal nitrates as well as alkali-metal hydroxides in an atmosphere in the presence of a mixed gas including carbon dioxide and a reducing gas. In accordance with the present invention, it is possible to produce lithium-silicate-based materials, which are useful as a positive-electrode active material for lithium-ion secondary battery, and the like, at low temperatures by means of relatively easy means.