US 11,695,118 B2
Modified cathodes for solid-state lithium sulfur batteries and methods of manufacturing thereof
Michael Edward Badding, Campbell, NY (US); Jun Jin, Shanghai (CN); Zhen Song, Painted Post, NY (US); Qing Wang, Shanghai (CN); Zhaoyin Wen, Shanghai (CN); and Tongping Xiu, Shanghai (CN)
Assigned to CORNING INCORPORATED, Corning, NY (US); and Shanghai Institute of Ceramics Chinese Academy, Shanghai (CN)
Filed by Corning Incorporated, Corning, NY (US); and Shanghai Institute of Ceramics Chinese Academy, Shanghai (CN)
Filed on May 18, 2020, as Appl. No. 16/877,293.
Claims priority of application No. 201910412097.X (CN), filed on May 17, 2019.
Prior Publication US 2020/0365897 A1, Nov. 19, 2020
Int. Cl. H01M 4/58 (2010.01); H01M 4/66 (2006.01); H01M 4/36 (2006.01); H01M 10/0562 (2010.01); H01M 10/0565 (2010.01); H01M 10/052 (2010.01); H01M 4/131 (2010.01)
CPC H01M 4/5815 (2013.01) [H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/663 (2013.01); H01M 4/664 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); H01M 10/0565 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A lithium-sulfur battery, comprising:
a substrate;
a composite cathode disposed on the substrate;
a coating layer disposed on the composite cathode, the coating layer further positioned within an interior of the composite cathode and penetrating a porous structure of the composite cathode, and the coating layer comprises a N—C—Co composite, polyethylene oxide, and at least one of LiTFSI, LiTf, or LiBETI;
a solid-state electrolyte, the coating layer positioned between the composite cathode and the solid-state electrolyte; and
a lithium anode disposed on the solid-state electrolyte,
wherein the composite cathode comprises active elemental sulfur, conductive carbon, sulfide electrolyte, and ionic liquid.