Solid electrolyte, method for producing solid electrolyte, membrane and electrode assembly, and fuel cell

摘要

A solid electrolyte comprising a domain including an acid moiety and a matrix domain, wherein the domain and the matrix domain form 3-dimensional crosslinking structure comprising a carbon-carbon bond of a polymer main chain and polyether crosslink, and the solid electrolyte has ion conductivity of 0.010 S/cm or more, methanol diffusion coefficient of 4x10^-7 cm²/s of less, tensile strength of 40 MPa or more, and pressure strength of 500 kgf/cm² or more.