| abstract |
An object of the present invention is to realize a solid polymer electrolyte excellent in heat resistance, proton conductivity, mechanical strength, and water retention. A solid polymer electrolyte obtained by combining an organometallic compound represented by the following chemical formula 1 and an organic polymer having proton conductivity. In Chemical Formula 1, X 1 to X 3 are each independently a hydrogen atom, a hydrocarbon group that may have a substituent, or an alkoxyl group, and X 4 has a hydrogen atom or a substituent. And M is at least one metal atom selected from the group consisting of Si, Ti, Al, Zr and Ge, and n is an integer of 1 to 100. ) [Selection figure] None |