US 12,266,787 B2
Composite fiber electrodes and applications of same
Peter N. Pintauro, Brentwood, TN (US); and Ryszard N. Wycisk, Nashville, TN (US)
Assigned to VANDERBILT UNIVERSITY, Nashville, TN (US)
Filed by VANDERBILT UNIVERSITY, Nashville, TN (US)
Filed on Jun. 8, 2021, as Appl. No. 17/341,487.
Claims priority of provisional application 63/035,918, filed on Jun. 8, 2020.
Prior Publication US 2021/0384493 A1, Dec. 9, 2021
Int. Cl. H01M 4/36 (2006.01); D01D 5/00 (2006.01); D06M 11/74 (2006.01); D06M 11/77 (2006.01); H01M 4/04 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); D06M 101/28 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/366 (2013.01) [D01D 5/0007 (2013.01); D06M 11/74 (2013.01); D06M 11/77 (2013.01); H01M 4/0419 (2013.01); H01M 4/386 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); D06M 2101/28 (2013.01); D10B 2321/08 (2013.01); D10B 2321/10 (2013.01); D10B 2401/10 (2013.01); H01M 2004/021 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A composite electrode, being a multi-fiber electrode, comprising:
a membrane/separator or an electrically conductive substrate; and
a fiber network coated on the membrane/separator or the electrically conductive substrate with an electrode ink comprising pre-formed fibers and a solvent,
wherein the pre-formed fibers are pre-formed before preparation of the electrode ink via a fiber spinning process;
wherein the pre-formed fibers comprise one or more polymers, and one or more particles;
wherein said one or more particles comprise catalyst particles or particles of an electrochemically active material; and
wherein the electrochemically active particles comprise silicon (Si) particles, Si nanoparticles, Si nanowires, Si-carbon particles, Si oxide particles, titania particles, and/or precious metal or non-precious metal catalysts particles on conductive or non-conductive supports, wherein the non conductive supports include titania or alumina, and wherein the conductive supports include carbon particles, graphite particles, carbon black particles, carbon nanotubes, carbon fibers, or a mixture thereof.