Rechargeable fuel cell with double cathode

摘要

A fuel cell assembly may be provided that includes a first cathodic electrode and a second cathodic electrode; an anodic electrode positioned between the first cathodic electrode and the second cathodic electrode; a first membrane positioned between the first cathodic electrode and the anodic electrode; a second membrane positioned between the second cathodic electrode and the anodic electrode; and a seal ring for sealing the fuel cell assembly, the seal ring comprising a water-refilling mechanism.