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:
Dec. 08, 2015
Filed:
Jan. 24, 2012
Dai Yamamoto, Kanagawa, JP;
Shinsuke Matsuno, Tokyo, JP;
Yoshinao Tatebayashi, Nagano, JP;
Norio Takami, Kanagawa, JP;
Dai Yamamoto, Kanagawa, JP;
Shinsuke Matsuno, Tokyo, JP;
Yoshinao Tatebayashi, Nagano, JP;
Norio Takami, Kanagawa, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A positive electrode material for non-aqueous electrolyte secondary batteries having high rate characteristics and high energy density, and a battery using the same are provided. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode material, a conductive agent and a binder; a negative electrode; a separator; and a non-aqueous electrolyte, in which the positive electrode material contains core particles and a coating material that covers from 10% to 90% of the surfaces of the core particles, the core particles are formed of a compound represented by LiMPO(wherein M represents at least one element selected from Fe, Mn, Co and Ni, and satisfies the relations: 0<a≦1.1 and 0<b≦1), and the coating material part is formed of a compound which is capable of insertion and extraction of Li ions in the potential range exhibited by the core particles at the time of charge and discharge.