Standard Article

High–temperature membranes

Fuel Cell Technology and Applications

Polymer electrolyte membrane fuel cells and systems (PEMFC)

Membrane materials

  1. J. S. Wainright,
  2. M. H. Litt,
  3. R. F. Savinell

Published Online: 15 DEC 2010

DOI: 10.1002/9780470974001.f303038

Handbook of Fuel Cells

Handbook of Fuel Cells

How to Cite

Wainright, J. S., Litt, M. H. and Savinell, R. F. 2010. High–temperature membranes. Handbook of Fuel Cells. .

Author Information

  1. Case Western Reserve University, Cleveland, OH, USA

Publication History

  1. Published Online: 15 DEC 2010

Abstract

A review is presented of work in the area of polymer electrolyte membranes for fuel cell operation at temperatures exceeding 100 °C. Development of these electrolytes will permit fuel cell operation with greatly increased tolerance to carbon monoxide, and greatly reduced humidification requirements. The focus is on the electrolyte membranes based on basic polymers doped with acids, i.e., phosphoric acid-doped polybenzimidazole. The key properties of these membranes including conductivity, permeability, and mechanical strength are reviewed, as well as fuel cell performance under various operating conditions.

Keywords:

  • polybenzimidazole;
  • phosphoric acid;
  • CO tolerance