Ag–PTFEcompositecoatingwaselectrodepositedon316Lstain-less steel as bipolar plate of PEMFC. The PTFE particles can be embedded in the defects of Ag coating, and consequently reducing thedefects.TheadditionofPTFEtoAgcoatingincreasesthecontact angle of coating greatly, which is beneficial for water management of the stack. In addition, the composite coating is smoother than that of the pure Ag coating, leading to a lower interfacial contact resistance under high compacting pressure due to a bigger contact area. And the addition of minute quantities of PTFE does not have obvious effects on corrosion resistance of the metal bipolar plate samples in electrochemical tests.