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MULTI-LAYER CARBON-SULFUR CATHODES

United States Patent Application

20170092954
A1
View the Complete Application at the US Patent & Trademark Office
The present disclosure relates to a cathode for a Li--S battery including a first carbon layer, a second carbon layer, and a S-based cathode active material composition between the first and second carbon layers. At least one of the first and second carbon layers allows passage of lithium ions, while substantially preventing passage of polysulfides. Such a carbon layer may include a nanocarbon paper. The nanocarbon paper may include curved carbon nanotubes attached to a carbon nanofiber skeleton to form a binder-free SP.sup.2-hydridized carbon framework.
Manthiram, Arumugam (Austin, TX), Chung, Sheng-Heng (Austin, TX)
15/ 265,586
September 14, 2016
STATEMENT OF GOVERNMENT INTEREST [0002] This invention was made with United States Government support under Grant no. DE-SC0005397 awarded by the Department of Energy. The United States Government has certain rights in the invention.