Isolator(s) include isolating material and optionally gasketing material strategically positioned within a fuel cell assembly. The isolating material is disposed between a solid electrolyte and a metal flow field plate. Reactant fluid carried by flow field plate channel(s) forms a generally transverse...http://www.google.co.uk/patents/US5912088?utm_source=gb-gplus-sharePatent US5912088 - Gradient isolator for flow field of fuel cell assembly
