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. 25, 2018
Filed:
Nov. 06, 2015
Applicant:
Gs Yuasa International Ltd., Kyoto-shi, Kyoto, JP;
Inventor:
Heisuke Nishikawa, Kyoto, JP;
Assignee:
GS Yuasa International Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 4/38 (2006.01); H01M 10/0525 (2010.01); C01B 17/00 (2006.01); C01B 31/26 (2006.01); H01M 4/62 (2006.01); C01B 32/05 (2017.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/136 (2010.01); H01M 4/1393 (2010.01); H01M 4/1397 (2010.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01B 32/05 (2017.08); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/136 (2013.01); H01M 4/1393 (2013.01); H01M 4/1397 (2013.01); H01M 4/38 (2013.01); H01M 4/587 (2013.01); H01M 4/62 (2013.01); H01M 4/622 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01); H01M 2220/20 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A sulfur-carbon composite in which sulfur is combined with porous carbon is provided. In the sulfur-carbon composite, a mass loss ratio X at 500° C. in thermal mass analysis and a mass ratio Y of sulfur/(sulfur+carbon) in an observation visual field at a magnification of 1000 in SEM-EDS quantitative analysis satisfy the relationship of |X/Y−1|≤0.12, and porous carbon has a mean pore diameter of 1 to 6 nm, and a specific surface area of 2000 mgor more and 3000 mgor less.