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:
Nov. 15, 2016
Filed:
Jul. 03, 2012
Atsushi Ito, Yokosuka, JP;
Yasuhiko Ohsawa, Yokosuka, JP;
Kenzo Oshihara, Novi, MI (US);
Tomohiro Kaburagi, Yokohama, JP;
Shinji Yamamoto, Yokosuka, JP;
Atsushi Ito, Yokosuka, JP;
Yasuhiko Ohsawa, Yokosuka, JP;
Kenzo Oshihara, Novi, MI (US);
Tomohiro Kaburagi, Yokohama, JP;
Shinji Yamamoto, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama-Shi, Kanagawa, JP;
Abstract
A positive electrode active material is provided for an electric device that contains a first active material comprising a transition metal oxide represented by formula (1): Li1.5[NiaCobMnc[Li]d]O3 (where a, b, c, and d satisfy the relationships: 0<d<0.5; a+b+c+d=1.5; and 1.0<a+b+c<1.5); and a second active material comprising a spinel transition metal oxide that has a crystal structure assigned to the space group Fd-3m, represented by formula (2): LiMa'Mn2−a′O4 (where M indicates at least one metal element having an atomic valence of 2-4, and a′ satisfies the relationship 0=a′<2.0). The fraction content of the first and second active material by mass ratio satisfies the relationship (3): 100:0 A:MB A indicates the mass of the first active material and MB indicates the mass of the second active material).