NOVELTY - A carbon-cladded composite composition comprises first clad coated on or bonded to a first surface of a conductive composite layer, and carbon-cladded composite. The first clad comprises a conductive carbon or graphite material. The conductive composite layer comprises a matrix resin and a conductive filler rendering composite layer electrically conductive with an electrical conductivity greater than or equal to 1 S/cm. The carbon-cladded composite has a planar outer surface with fluid flow channel in it. The planar outer surface is on first clad side.    USE - Carbon-cladded composite composition for use as fuel cell flow field plate or bipolar plate (claimed).    ADVANTAGE - The composition uses simpler chemical formulation that enables simpler, more convenient, and faster processing of bipolar plates. The composition has conductivity of greater than 100 S/cm or areal conductivity of greater than 200 S/cm2.    DETAILED DESCRIPTION - A carbon-cladded composite composition comprises first clad coated on or bonded to a first surface of a conductive composite layer, and carbon-cladded composite. The first clad comprises a conductive carbon or graphite material. The conductive composite layer comprises a matrix resin and a conductive filler rendering composite layer electrically conductive with an electrical conductivity greater than or equal to 1 S/cm. The carbon-cladded composite has a planar outer surface with fluid flow channel in it. The planar outer surface is on first clad side. The carbon-cladded composite composition includes second clad coated on or bonded to a second surface of conductive composite layer. The two clads, and composite layer together form a sandwich structure. The second clad comprises a conductive carbon or graphite material. INDEPENDENT CLAIMS are included for:    (1) fuel cell comprising a flow field plate made from a carbon-cladded composite composition;    (2) fuel cell stack comprising fuel cell units separated by at least a bipolar plate made from a carbon cladded composite composition; and    (3) carbon-cladded composite composition comprising two clads and a conductive composite core layer sandwiched between clads.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of stacked fuel cells.    Bipolar plate (54)    Coolant channel (55)    Diffuser layers (56, 58)    Reactant channels (60, 62)    Catalyst-coated membrane. (70)