A separator plate in an electrochemical cell and method for making the
same includes a body with an electrically conductive first section having
fluid flow fields with a plurality of flow channels formed therein. A
second section is provided adjacent to the first section that has a
header area defining a manifold that supplies fluids to the flow fields
of each fuel cell. The second section is non-conductive to prevent
possible electrical interaction with any aqueous fluids of finite ionic
conductivity present in the fuel cell, which may result in inefficient
fuel cell operations.