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. 15, 2020
Filed:
Mar. 12, 2019
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Yumiko Sekiguchi, Kawasaki, JP;
Hayato Seki, Saitama, JP;
Shinsuke Matsuno, Tokyo, JP;
Norio Takami, Yokohama, JP;
Assignee:
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/26 (2006.01); B60L 50/64 (2019.01); H01M 4/38 (2006.01); H01M 4/66 (2006.01); H01M 10/42 (2006.01); H01M 10/24 (2006.01); H01M 4/24 (2006.01); H01M 4/485 (2010.01);
U.S. Cl.
CPC ...
H01M 10/26 (2013.01); B60L 50/64 (2019.02); H01M 4/24 (2013.01); H01M 4/38 (2013.01); H01M 4/485 (2013.01); H01M 4/661 (2013.01); H01M 10/24 (2013.01); H01M 10/425 (2013.01); H01M 2010/4271 (2013.01); H01M 2220/10 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0014 (2013.01);
Abstract
According to one embodiment, there is provided a secondary battery including a positive electrode, a negative electrode, and an aqueous electrolyte. The negative electrode contains a titanium-containing oxide. The aqueous electrolyte contains a solvent and alkali metal ions or alkaline earth metal ions, the solvent containing water and a water-soluble organic solvent. An interfacial tension of the aqueous electrolyte is 37 mN/m or less.