Interfacial materials anode contact

Perhaps more important than cost is the solution to the crucial problem of interfacial contacts that always plagues homogeneous GPE films prepared from traditional approaches. Since both cathode and anode composite materials are coated on their substrates with the same PVdF—HEP copolymer as the binder, the in situ gellification following the electrolyte activation effectively fuses the three cell components into an integrated multilayer wafer without physical boundaries, so that the interfaces between anode and electrolyte or cathode and electrolyte are well extended into the porous structures of these electrodes, with close similarity to the interfaces that a liquid electrolyte would access. 

Nikam et al. (2008) proposed a low-temperature carburization (Cao, 2003) for the improvement of corrosion resistance and electric properties of 316L specimens. In potentiostatic tests, corrosion current densities were obtained to be 4 pA cm in anodic and 1.5 pA cm" in cathodic PEM fuel cell environment. Interfacial contact resistance of LTC 316L was lowered by approximately 24% compared to untreated material. 

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