ALBUQUERQUE, N.M. -- Fuel cells provide power without pollutants. But, as in the Goldilocks story, membranes in automobile fuel cells work at temperatures either too hot or too cold to be maximally effective. A polyphenyline membrane patented by Sandia National Laboratories, though, seems to work just about right, says Sandia chemist Cy Fujimoto.
The membrane, which operates over a wide temperature range, lasts three times longer than comparable commercial products, Fujimoto and his co-authors say in the Aug. 21 issue of Nature Energy.