Composition with improved electrical conductivity

Thermoset bulk molding compounds (BMCs) useful for making conductive components such as bipolar plates for fuel cells are described. The thermoset bulk molding compound incorporates graphene nanoplatelets to increase the through-plane conductivity by at least 20% as compared to a BMC that does not contain graphene nanoplatelets. In addition, these compositions have low shrinkage, low density, and ease of processing for lightweight parts. The compositions are useful in the preparation of various electrically conductive components, including bipolar plates for fuel cells and chemical batteries operating at temperatures of less than 100 DEG C. 描述了可用于制造诸如燃料电池用双极板的导电部件的热固性块状模塑料(BMC)。与不含石墨烯纳米片的BMC相比，热固性块状模塑复合物掺入石墨烯纳米片以使贯通面电导率增加至少20％。另外，这些组合物对于轻质部件具有低收缩率、低密度，并且容易加工。组合物可用于制备各种导电部件，包括用于在小于100℃的温度下操作的燃料电池和化学蓄电池的双极板。