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. 29, 2015
Filed:
Jul. 10, 2013
Applicant:
The Penn State Research Foundation, University Park, PA (US);
Inventors:
Donghai Wang, State College, PA (US);
Tianren Xu, State College, PA (US);
Jiangxuan Song, State College, PA (US);
Assignee:
THE PENN STATE RESEARCH FOUNDATION, University Park, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/136 (2010.01); H01M 4/133 (2010.01); H01M 10/052 (2010.01); H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
H01M 4/136 (2013.01); H01M 4/133 (2013.01); H01M 4/625 (2013.01); H01M 10/052 (2013.01); Y02E 60/122 (2013.01);
Abstract
We report a heteroatom-doped carbon framework that acts both as conductive network and polysulfide immobilizer for lithium-sulfur cathodes. The doped carbon forms chemical bonding with elemental sulfur and/or sulfur compound. This can significantly inhibit the diffusion of lithium polysulfides in the electrolyte, leading to high capacity retention and high coulombic efficiency.