NOVELTY - Production of electrically conductive composition includes mixing expandable graphite powder with non-expandable powder comprising binder or matrix material, exposing the powder mixture to specified temperature for exfoliating expandable graphite to obtain a compressible mixture (322), compressing the compressible mixture at 5-50000 psi in predetermined directions into predetermined forms of cohered graphite composite compact (305); and treating the cohered graphite composite compact to activate the binder or matrix material to promote adhesion within the compact.    USE - Method for producing electrically conductive composition (claimed) useful in manufacturing fuel cell bipolar plates or flow field plates.    ADVANTAGE - The composition is manufactured by fast and cost-effective process. The process is automated and adaptable for mass production. The starting materials are inexpensive graphite-based materials. No expensive and tedious process such as chemical vapor infiltration is required. A bipolar plate or flow field plate obtained from the composition has low cost and excellent structural integrity, does not delaminate, and exhibits excellent electrical conductivity that exceeds the target bipolar plate conductivity value of the US Department of Energy for automotive fuel cell applications. The composition has long storage life and may be made into a precursor form (without the final shaping operation) for easy storing, shipping and handling. The end-user can simply cut the composition into individual pieces which are molded into bipolar plates when and where the plates are needed.    DETAILED DESCRIPTION - Production of electrically conductive composition includes:    (A) mixing expandable graphite powder with non-expandable powder comprising binder or matrix material to form a powder mixture comprising 3-60 wt.% non-expandable powder;    (B) exposing the powder mixture to specified temperature for exfoliating expandable graphite to obtain a compressible mixture comprising expanded graphite worms and non-expandable component;    (C) compressing the compressible mixture at 5-50000 psi in predetermined directions into predetermined forms of cohered graphite composite compact; and    (D) treating the cohered graphite composite compact to activate the binder or matrix material to promote adhesion within the compact.    DESCRIPTION OF DRAWING(S) - The drawing is a schematic view of a fuel cell bipolar plate production system.    Chamber (301)    Hopper (302)    Compression device (304)    Cohered graphite composite compact (305)    Slicing device (307)    Filter (311)    Pipe (312)    Exhaust air (313)    Conveyor belt (315)    Embossing rollers (318)    Bipolar plates (319)    Compressible mixture (322)