Patent ID: 11942665
Assignee: ARISAWA MFG. CO., LTD.
Field: Surface technology, coating (Chemistry)
Classification: CPC B  H  Y | IPC H

Claim 5:
6. A method of manufacturing a separator member for a fuel cell, the method comprising:
a resin application step of applying a resin to a film subjected to mold release treatment;
a first resin layer making step of curing the resin to be in a semi-curing state to make a first resin layer;
a graphite sheet layering step of layering a graphite sheet including graphite having a volume resistivity of 3 mΩ·cm or less on the first resin layer, the graphite layer having a layering amount of 0.5 to 30 g/m2 and pressure-bonding the graphite sheet to the first resin layer; wherein a material included in the graphite layer includes 95% by weight or more of graphite;
a film peeling step of peeling the film from the first resin layer;
a second graphite sheet layering step of layering a graphite sheet including graphite having a volume resistivity of 3 mΩ·cm or less on a face of the first resin layer from which the film is peeled and pressure-bonding the graphite sheet to the face;
a peeling step of peeling the graphite sheets from both faces of the first resin layer, and
providing a conductive fiber base material and a second resin layer including a resin that are layered between the first resin layer and the first graphite sheet in order in which the conductive fiber base material is closer to the first resin layer than the second resin layer, and wherein
a thickness of the second resin layer is smaller than a thickness of the first resin layer.