Patent ID: 8722254

Claim:
A solid-state conductor, comprising: at least one salt comprising at least one of LiPF 6 , LiTFSI, LiBF 4 , LiClO 4 , LiN(CF 3 SO 2 ) 2 , LiAsF 6 , LiCF 3 SO 3 , LiI, LiBC 4 O 8 , Li[PF 3 (C 2 F 5 ) 3 ], LiTf, Lilm, LiBr, LiCl, LiSCN, LiTFSM, NaI, LiCF 3 CO 2 , NaBr, NaSCN, KSCN, MgCl 2 and Mg(ClO 4 ); poly(ethylene oxide); and a soy protein mixed with the poly(ethylene oxide), wherein the soy protein has a network structure of individual, at least partially unfolded protein strands; wherein individual molecules of the poly(ethylene oxide) are entangled in the network structure of the soy protein such that the poly(ethylene oxide) molecules are at least about 50% amorphous; and the solid state conductor comprises about 10 wt % to about 25 wt % of the salt, about 33 wt % to about 40 wt % of the poly(ethylene oxide), and about 41 wt % to about 49 wt % of the soy protein.