US 12,424,617 B2
Electro-spun sulfur wire for fabricating mattes of lithium sulfur batteries
Prashant N. Kumta, Pittsburgh, PA (US); Prashanth Jampani Hanumantha, Pittsburgh, PA (US); Bharat Gattu, Pittsburgh, PA (US); and Pavithra Murugavel Shanthi, Pittsburgh, PA (US)
Assigned to UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, Pittsburgh, PA (US)
Appl. No. 15/555,143
Filed by UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, Pittsburgh, PA (US)
PCT Filed Mar. 14, 2016, PCT No. PCT/US2016/022283
§ 371(c)(1), (2) Date Sep. 1, 2017,
PCT Pub. No. WO2016/145429, PCT Pub. Date Sep. 15, 2016.
Claims priority of provisional application 62/132,014, filed on Mar. 12, 2015.
Prior Publication US 2018/0047978 A1, Feb. 15, 2018
Int. Cl. B32B 27/12 (2006.01); C08L 101/00 (2006.01); D01D 1/02 (2006.01); D01D 5/00 (2006.01); D01D 5/34 (2006.01); D01F 1/10 (2006.01); D01F 6/22 (2006.01); D01F 9/08 (2006.01); D04H 1/42 (2012.01); D04H 1/728 (2012.01); H01M 4/04 (2006.01); H01M 4/136 (2010.01); H01M 4/137 (2010.01); H01M 4/1397 (2010.01); H01M 4/1399 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/60 (2006.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01); B82Y 30/00 (2011.01); D01F 6/44 (2006.01); D01F 6/88 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/364 (2013.01) [C08L 101/00 (2013.01); D01D 1/02 (2013.01); D01D 5/00 (2013.01); D01D 5/003 (2013.01); D01D 5/34 (2013.01); D01F 1/10 (2013.01); D01F 6/22 (2013.01); D01F 9/08 (2013.01); D04H 1/42 (2013.01); D04H 1/728 (2013.01); H01M 4/0404 (2013.01); H01M 4/136 (2013.01); H01M 4/137 (2013.01); H01M 4/1397 (2013.01); H01M 4/1399 (2013.01); H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/602 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); B82Y 30/00 (2013.01); D01F 6/44 (2013.01); D01F 6/88 (2013.01); D10B 2101/00 (2013.01); D10B 2321/121 (2013.01); H01M 2004/021 (2013.01); H01M 2220/30 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A sulfur-polymer composite, comprising:
a plurality of sulfur wires, comprising:
an exterior layer;
an interior layer;
a diameter from about 1-7 μm, derived from an electro-spinning precursor solution, the precursor solution comprising:
from 30 to 75% by weight based on total weight of the solution of a sulfur component, selected from the group consisting of sulfur powder, nano-sulfur powder, and mixtures thereof; and
a conducting polymer selected from the group consisting of polystyrene, polythiophene, polypyrrole, polyacrylamide, and polyvinylidene fluoride,
wherein the sulfur-polymer composite includes the plurality of sulfur wires interwoven with the conducting polymer or the conducting polymer forms an exterior layer and the sulfur wires form an interior layer; and
a lithium ion conducting coating applied to the sulfur-polymer composite.