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:
Jun. 27, 2017
Filed:
Mar. 11, 2015
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hiromichi Kuriyama, Kashiwazaki, JP;
Hidesato Saruwatari, Kashiwazaki, JP;
Tetsuro Kano, Kashiwazaki, JP;
Yuki Watanabe, Kashiwazaki, JP;
Norio Takami, Yokohama, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Abstract
According to one embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a negative electrode, a positive electrode, and a nonaqueous electrolyte. An Li-atom abundance ratio A, Ti-atom abundance ratio A, and C-atom abundance ratio Aof a surface of the negative electrode satisfy inequalities 2≦A/A≦10, and 1.0≦A/A≦1.5. The positive electrode includes a nickel-cobalt-manganese composite oxide represented by a composition formula LiNiCoMnO. Subscripts x, y, and z satisfy an inequality 0.1≦x/(y+z)≦1.3, and subscript a satisfies an inequality 0≦a≦1. A ratio p/n of a capacity p of the positive electrode to a capacity n of the negative electrode is within a range of 1.2 to 2.