US 12,009,485 B2
Solid electrolyte membrane including cyan-based polymer electrolyte and battery including the same
Sungjin Cho, Summerfield, NC (US); and Jongsoo Cho, Greensboro, NC (US)
Assigned to SOELECT INC., Greensboro, NC (US)
Filed by SOELECT INC., Greensboro, NC (US)
Filed on Jul. 14, 2022, as Appl. No. 17/864,605.
Application 17/864,605 is a continuation in part of application No. PCT/US2021/029511, filed on Apr. 28, 2021.
Claims priority of provisional application 63/019,724, filed on May 4, 2020.
Prior Publication US 2022/0352562 A1, Nov. 3, 2022
Int. Cl. H01M 10/42 (2006.01); H01M 10/0525 (2010.01); H01M 10/056 (2010.01); H01M 50/446 (2021.01)
CPC H01M 10/4235 (2013.01) [H01M 10/0525 (2013.01); H01M 10/056 (2013.01); H01M 50/446 (2021.01); H01M 2300/0068 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0091 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A solid electrolyte membrane comprising a reactive combination of constituents, said constituents comprising:
a) a polyacrylonitrile polymer or a co-polymer selected from the group of polyacrylonitrile, poly(styrene-co-acrylonitrile), poly(acrylonitrile-co-butadiene-co-styrene), acrylonitrile butadiene rubber (NBR), and any combination thereof;
b) at least one lithium salt having at least one of an inorganic anion and/or an organic anion;
c) at least one cyano-based molecule comprising a mono-cyano molecule, a di-cyano molecule, tetracyanoethylene, 2,5-cyclohexadiene-1,4-diylidene and any cyano-derivatives thereof, or any combination thereof;
d) at least one plasticizer present within at least one dielectric solvent selected from the group of propylene carbonate (PC), 1,3-dioxolan-2-one, and any combination thereof; and
e) at least one nano- and/or micron-sized particle filler comprising lithophilic inorganic compounds;
wherein the solid electrolyte membrane exhibits an ionic conductivity value between 2.0×10−4 S/cm and 1.3×10−3 S/cm at room temperature; and
wherein the solid electrolyte membrane exhibits a tensile strength of at least 0.5 megapascals (MPa).