Chia Yen Tzeng, a research assistant at Chung Yuan Christian University in Taiwan, described studies into fuel-cell plates made from polyphenylene sulfide filled with 50 percent carbon fiber.
Tzeng said filled composite fuel-cell plates have desirable mechanical and chemical properties, but they have poor conductivity required for that appli¼- cation. Using a JSW injection press, the researchers molded bipolar plates using standard injection molding and injection/ compression molding. The goal was to get low through-plane resistance. One of the study's conclusions was that the injection/ compression proc¼ess can improve conductivity by improving carbon-fiber orientation.