Fuel cell separator, production method, and solid polymer fuel cells

Fuel cell separators which are highly hydrophilic and undergo little leaching of substances that inhibit electrical power generation can be produced by shaping a composition composed primarily of a metal oxide, an electrically conductive powder and a binder to form a shaped body, coating and impregnating the shaped body with a hydrophilic resin, then curing the hydrophilic resin under applied heat.