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:
Jul. 19, 2022
Filed:
Jan. 25, 2019
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki, JP;
Dai Yamamoto, Kashiwazaki, JP;
Keigo Hoshina, Kashiwazaki, JP;
Ryo Hara, Kashiwazaki, JP;
Norio Takami, Yokohama, JP;
Yasuhiro Harada, Isehara, JP;
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Toshiba Infrastructure Systems & Solutions Corporation, Kawasaki, JP;
Abstract
According to one embodiment, provided is a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material containing orthorhombic Na-containing niobium-titanium composite oxide particles represented by general formula (1) LiNaM1TiNbM2O. In general formula (1), M1 is one or two or more elements selected from the group consisting of Cs, K, Sr, Ba, and Ca, M2 is one or two or more elements selected from the group consisting of Zr, Al, Sn, V, Ta, Mo, W, Fe, Co, and Mn, 0≤v<2, 0≤x<2, 0<y<2, 0≤z<3, and −0.5≤δ≤0.5. The nonaqueous electrolyte contains an Na component in a range of 10 ppm by mass to 3,000 ppm by mass.