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. 14, 2015
Filed:
Oct. 12, 2012
Kabushiki Kaisha Toyota Jidoshokki, Kariya-shi, Aichi, JP;
National Institute of Advanced Industrial Science and Technology, Chiyoda-ku, Tokyo, JP;
Akira Kojima, Kariya, JP;
Toshikatsu Kojima, Ikeda, JP;
Mitsuharu Tabuchi, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Takuhiro Miyuki, Ikeda, JP;
Junichi Niwa, Kariya, JP;
Kazuhito Kawasumi, Kariya, JP;
Masakazu Murase, Kariya, JP;
KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Aichi, JP;
NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo, JP;
Abstract
A lithium silicate-based compound according to the present invention is expressed by a general formula, LiAMnCoMSiOCl(In the formula: 'A' is at least one element selected from the group consisting of Na, K, Rb and Cs; 'M' is at least one member selected from the group consisting of Mg, Ca, Al, Ni, Fe, Nb, Ti, Cr, Cu, Zn, Zr, V, Mo and W; and the respective subscripts appear to be as follows: 0≦“a”<0.2; 0≦“b”<1; 0<“x”<1; 0≦“y”≦0.5; −0.25≦“α”≦1.25; and 0≦“β”≦0.05). The lithium silicate-based compound is used as a positive-electrode active material for secondary battery whose discharge average voltage is higher, and which is able to sorb and desorb lithium ions.