Fuel cell graphite composite bipolar plate, preparation method thereof, and fuel cell

The invention relates to a fuel cell graphite composite bipolar plate, a preparation method thereof, and a fuel cell. The composite bipolar plate comprises a composite bipolar plate body, carbon fiber as a reinforcing component is embedded in the composite bipolar plate body, the surface of the composite bipolar plate body is provided with carbon fiber fluff, and the carbon fiber fluff forms a carbon fiber transition layer. Compared with the prior art, the bipolar plate has the advantages of reducing contact resistance, improving material conductivity and the like. 本发明涉及一种燃料电池石墨复合双极板、制备方法及燃料电池，所述复合双极板包括复合双极板本体，所述复合双极板本体内嵌入有作为增强组分的碳纤维，复合双极板本体的表面具有碳纤维绒毛，该碳纤维绒毛形成为一碳纤维过渡层。与现有技术相比，本发明具有降低接触电阻、提高材料电导率等优点。