Method of Fabricating Proton-Conducting Electrolytic Membrane

Lien-Chung Hsu (Inventor)

Research output: Patent

Abstract

A method is provided to fabricate an electrolyte membrane. The membrane has an asymmetric structure and is a polybenzimidazole membrane doped with phosphoric acid. The asymmetric structure comprises a dense layer and a porous layer. The content of phosphoric acid introduced into the polybenzimidazole membrane reaches 20 phosphoric acid molecules per polymer repeating unit. The proton conductivity of the polybenzimidazole membrane reaches 5×10-2 siemens per centimeter (S/cm). An electrode made with the polybenzimidazole membrane can be smoothly operated in a proton exchange membrane fuel cell.
Original languageEnglish
Patent number9705146
Publication statusPublished - 2016 Jun 30

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Protons
Membranes
Proton conductivity
Proton exchange membrane fuel cells (PEMFC)
Electrolytes
Polymers
Electrodes
Molecules
phosphoric acid

Cite this

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title = "Method of Fabricating Proton-Conducting Electrolytic Membrane",
abstract = "A method is provided to fabricate an electrolyte membrane. The membrane has an asymmetric structure and is a polybenzimidazole membrane doped with phosphoric acid. The asymmetric structure comprises a dense layer and a porous layer. The content of phosphoric acid introduced into the polybenzimidazole membrane reaches 20 phosphoric acid molecules per polymer repeating unit. The proton conductivity of the polybenzimidazole membrane reaches 5×10-2 siemens per centimeter (S/cm). An electrode made with the polybenzimidazole membrane can be smoothly operated in a proton exchange membrane fuel cell.",
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N2 - A method is provided to fabricate an electrolyte membrane. The membrane has an asymmetric structure and is a polybenzimidazole membrane doped with phosphoric acid. The asymmetric structure comprises a dense layer and a porous layer. The content of phosphoric acid introduced into the polybenzimidazole membrane reaches 20 phosphoric acid molecules per polymer repeating unit. The proton conductivity of the polybenzimidazole membrane reaches 5×10-2 siemens per centimeter (S/cm). An electrode made with the polybenzimidazole membrane can be smoothly operated in a proton exchange membrane fuel cell.

AB - A method is provided to fabricate an electrolyte membrane. The membrane has an asymmetric structure and is a polybenzimidazole membrane doped with phosphoric acid. The asymmetric structure comprises a dense layer and a porous layer. The content of phosphoric acid introduced into the polybenzimidazole membrane reaches 20 phosphoric acid molecules per polymer repeating unit. The proton conductivity of the polybenzimidazole membrane reaches 5×10-2 siemens per centimeter (S/cm). An electrode made with the polybenzimidazole membrane can be smoothly operated in a proton exchange membrane fuel cell.

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