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:
May. 03, 2016
Filed:
Jul. 26, 2012
Akira Kojima, Kariya, JP;
Toshikatsu Kojima, Ikeda, JP;
Mitsuharu Tabuchi, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Masanori Morishita, Ikeda, JP;
Takuhiro Miyuki, Ikeda, JP;
Junichi Niwa, Kariya, JP;
Masataka Nakanishi, Kariya, JP;
Yuya Sato, Kariya, JP;
Kazuhito Kawasumi, Kariya, JP;
Masakazu Murase, Kariya, JP;
Akira Kojima, Kariya, JP;
Toshikatsu Kojima, Ikeda, JP;
Mitsuharu Tabuchi, Ikeda, JP;
Tetsuo Sakai, Ikeda, JP;
Masanori Morishita, Ikeda, JP;
Takuhiro Miyuki, Ikeda, JP;
Junichi Niwa, Kariya, JP;
Masataka Nakanishi, Kariya, JP;
Yuya Sato, 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
Provided is a novel lithium silicate-based material useful as a positive electrode material for lithium ion secondary battery. The lithium silicate-based compound is represented by LiFeSiO. The lithium silicate-based compound is a compound including: lithium (Li); iron (Fe); silicon (Si); and oxygen (O), and expressed by a composition formula, LiFeSiO(−0.25≦δ≦0.25, 0≦c≦0.5). The lithium silicate-based compound, of which iron (Fe) is trivalent, exerts a remarkable chemical stability as compared to LiFeSiO.