US 12,255,308 B2
Sulfurized-carbon cathode with conductive carbon framework
Rodrigo Villegas Salvatierra, Houston, TX (US); Tuo Wang, Houston, TX (US); and Abdul-Rahman Olabode Raji, Houston, TX (US)
Assigned to Zeta Energy LLC, Houston, TX (US)
Appl. No. 17/430,594
Filed by Zeta Energy Corp., Houston, TX (US)
PCT Filed Mar. 25, 2021, PCT No. PCT/US2021/024259
§ 371(c)(1), (2) Date Aug. 12, 2021,
PCT Pub. No. WO2021/195450, PCT Pub. Date Sep. 30, 2021.
Claims priority of provisional application 63/000,423, filed on Mar. 26, 2020.
Claims priority of provisional application 63/133,745, filed on Jan. 4, 2021.
Claims priority of provisional application 63/133,752, filed on Jan. 4, 2021.
Prior Publication US 2022/0209216 A1, Jun. 30, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/139 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 4/0471 (2013.01) [H01M 4/139 (2013.01); H01M 4/362 (2013.01); H01M 4/38 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An electrode comprising:
a conductive framework of tangled nanofibers; and
amorphous carbon-sulfur distributed within the tangled nanofibers, the amorphous carbon-sulfur including carbon bonded to sulfur via carbon-sulfur chemical bonds and to the nanofibers via chemical bonds;
wherein the amorphous carbon-sulfur contains sp2 aromatic carbon clusters having an average maximum dimension of less than 20 nm dispersed within a matrix of sp3 carbon atoms.