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:
Aug. 30, 2022
Filed:
Feb. 16, 2018
Applicant:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Inventors:
Yasuyuki Hotta, Oota, JP;
Shinsuke Matsuno, Minato, JP;
Hayato Seki, Kawasaki, JP;
Norio Takami, Yokohama, JP;
Assignee:
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/36 (2010.01); H01M 4/60 (2006.01); H01M 4/48 (2010.01); C01G 23/047 (2006.01); H01M 10/38 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01); H01M 4/485 (2010.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
H01M 10/36 (2013.01); C01G 23/047 (2013.01); H01M 4/483 (2013.01); H01M 4/602 (2013.01); H01M 10/38 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01); H01M 2300/0002 (2013.01); H01M 2300/0085 (2013.01); H01M 2300/0088 (2013.01);
Abstract
In one embodiment, a secondary battery is provided, which includes an electrolytic solution, and a positive electrode and a negative electrode which are immersed in the electrolytic solution. The electrolytic solution contains water, an electrolyte salt, and at least one kind of an organic solvent with a relative permittivity of not more than 42. The relative permittivity of the electrolytic solution fractionated when converted according to a volume fraction is not more than 78.50.