Patent ID: 8945777
Filing Date: 2015-02-03
Classification: C08J,H01M,Y02E,Y02P

Abstract:
1. A solid electrolyte for a flexible electrochemical device, consisting of a composite consisting of: a plastic crystal matrix electrolyte doped with an ionic salt; a semi-interpenetrating polymer network comprising a non-crosslinked polymer and a crosslinked polymer; optionally residual solvent; and optionally a photoinitiator; wherein the semi-interpenetrating polymer network is formed in the plastic crystal matrix electrolyte, wherein the non-crosslinked polymer is selected from: polyethylene oxide, polyvinylidene fluoride-co-hexafluoropropylene and polyacrylonitrile as linear polymers; poly(methoxy polyethylene glycol methacrylate) and poly(2-methoxy ethyl glycidyl ether) as branched polymers; and mixtures thereof, wherein the crosslinked polymer structure is obtained by polymerization of a monomer having two or more functional groups selected from trimethylolpropane ethoxylate triacrylate, polyethylene glycol dimethacrylate, trimethylolpropane trimethacrylate, ethoxylated bisphenol A dimethacrylate, and mixtures thereof, and wherein said solid electrolyte is suitable for use in a flexible electrochemical device.