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. 01, 2021
Filed:
Mar. 05, 2018
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Assignee:
KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0566 (2010.01); H01M 10/04 (2006.01); H01M 12/08 (2006.01); H01M 50/20 (2021.01);
U.S. Cl.
CPC ...
H01M 10/0566 (2013.01); H01M 10/045 (2013.01); H01M 12/08 (2013.01); H01M 50/20 (2021.01); H01M 2300/0028 (2013.01);
Abstract
According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an aqueous electrolyte containing alkali metal ions. The aqueous electrolyte contains an organic compound containing a carboxyl group or carboxylate group and a hydroxyl group. The pH of the aqueous electrolyte is 0 or less. The ratio of the weight of the organic compound to the weight of the aqueous electrolyte is within a range of 0.01% by weight to 6.5% by weight. The number of carbon atoms in the organic compound is 5 or more.