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:
Mar. 17, 2015
Filed:
Jan. 13, 2010
Applicants:
Masayuki Ihara, Fukushima, JP;
Shinya Wakita, Fukushima, JP;
Tadahiko Kubota, Kanagawa, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/16 (2006.01); H01M 4/38 (2006.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/48 (2010.01); H01M 4/525 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 4/38 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/48 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01); H01M 2300/0091 (2013.01); Y02E 60/122 (2013.01);
Abstract
An electrolyte contains a solvent and an electrolyte salt. The solvent contains an organic acid and a sulfone compound in combination. The organic acid has a moiety containing an electron-withdrawing group such as a carbonyl group (—C(═O)—) or a sulfonyl group (—S(═O)—) in the center and hydroxyl groups (—OH) at both ends. The sulfone compound is a cyclic compound having a disulfonic anhydride group (—(O═)S—O—S(═O)—) or a carboxylic-sulfonic anhydride group (—(O═)S—O—C(═O)—).