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:
Mar. 10, 2015
Filed:
Sep. 30, 2010
Motoshi Isono, Toyota, JP;
Shigeto Okada, Fukuoka, JP;
Jun-ichi Yamaki, Fukuoka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Kyushu University, National University Corporation, Fukuoka, JP;
Abstract
A lithium secondary battery includes: a positive electrode that contains a positive electrode active material; a negative electrode; and a nonaqueous electrolyte. The positive electrode active material is amorphous and is expressed by LiA[PM]Owhere, in the formula, A is Mn or Ni; M is a glass former element having an electronegativity lower than P; and x, y, a and z respectively satisfy 1<x≦2.5, 0<y≦3, 0≦a<1 and z=(x+(valence of A)+(valence of P)×a×y+(valence of M)×(1−a)×y)/2.