MANUFACTURE OF BIPOLAR PLATE FOR ALKALI WATER SOLUTION ELECTROLYTE TYPE FUEL CELL

摘要

PURPOSE:To manufacture a carbon bipolar plate excellent in corrosion resistance mechanical strength and gastightness inspite of high conductivity by using compound powder, wherein graphite powder is stuck to the surface of an alkali- resisting resin. CONSTITUTION:A carbon plate is obtained by a method, wherein graphite powder having a granular diameter under 180mum is given an affinity treatment, ''Gra-Compo'' complex powder stuck to polyphenylneoxide resin having a granular diameter under 280mum fills up a forming metal mold to be pressed at 880 deg.C. For an alkali-resisting regin, besides that said above, a polysulfonic ether resin polyallylether, and a polybutadiene resin are desirable, while a stearinic acid treatment, and a phenol resin treatment can be applied as an affinity treatment.