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. 27, 2018
Filed:
Jul. 30, 2012
Jun Liu, Richland, WA (US);
Yuliang Cao, Wuhan, CN;
Lifen Xiao, Wuhan, CN;
Jie Xiao, Richland, WA (US);
Gregory J. Exarhos, Richland, WA (US);
Birgit Schwenzer, Richland, WA (US);
Zimin Nie, Richland, WA (US);
Jun Liu, Richland, WA (US);
Yuliang Cao, Wuhan, CN;
Lifen Xiao, Wuhan, CN;
Jie Xiao, Richland, WA (US);
Gregory J. Exarhos, Richland, WA (US);
Birgit Schwenzer, Richland, WA (US);
Zimin Nie, Richland, WA (US);
Battelle Memorial Institute, Richland, WA (US);
Abstract
Composite materials containing sulfurized polymers and sulfur-containing particles can be used in lithium-sulfur energy storage devices as a positive electrode. The composite material exhibits relatively high capacity retention and high charge/discharge cycle stability. In one particular instance, the composite comprises a sulfurized polymer having chains that are cross-linked through sulfur bonds. The polymer provides a matrix in which sulfide and/or polysulfide intermediates formed during electrochemical charge-discharge processes of sulfur can be confined through chemical bonds and not mere physical confinement or sorption.