Research advances in composite bipolar plates for proton exchange membrane fuel cell

Bipolar plates account for most of the weight and cost in PEMFC, and also play a crucial role in it, with carbon/polymer composites owning great prospects. Combination of raw materials largely determines the properties and performance of BPs. This paper focuses on both the conductivity and mechanical performance of CBPs, and reviews the properties of the BPs prepared by different combinations of raw materials from the perspectives of a variety of carbon fillers and polymer materials, respectively. Finally, the paper summarizes the changes in the properties of CBP brought about by the use of different raw materials and gives an outlook on future research directions.