Proton-conductive membrane and fuel cell
AssigneesToyota Jidosha Kabushiki Kaisha, National University Corporation Nagoya University
InventorsNaoki Nakamura, Atsushi Noro, Takato Kajita, Haruka Tanaka, Yushu Matsushita
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Abstract
A proton-conductive membrane is provided, which exhibits high proton conductivity even in an anhydrous environment. The proton-conductive membrane includes a crosslinked polymer and a plasticizer, wherein the crosslinked polymer includes a proton acceptor group in an amount equal to not less than 10 mol % of repeating units constituting the crosslinked polymer, the plasticizer includes a proton donor compound having a pKa value of not more than 2.5, and the plasticizer is a viscoelastic solid in a temperature range of 50° C. to 120° C.
Claims9
A proton-conductive membrane, comprising:
- a crosslinked polymer and a plasticizer,
- wherein the crosslinked polymer includes a proton acceptor group in an amount equal to 10 mol % or more of repeating units constituting the crosslinked polymer,
- wherein the crosslinked polymer is a copolymer of a first monomer, which is a vinyl-based monomer including a proton acceptor group, and a second monomer, which is a crosslinkable vinyl monomer,
- wherein the plasticizer includes a proton donor compound having a pKa value 2.5 or less, and
- wherein the proton-conductive membrane is a viscoelastic solid in a temperature range of 50° C. to 120° C.
Dependencies are inferred from the claim text.