In this review we discuss the usage of supercritical fluids for processing (synthesis, modification, forming, etc.) of polymeric materials for electrochemical applications. Our primary focus is on the literature that reveals the benefits of this approach for processing electronically conductive polymers. Recent literature on ion-conductive polymers is also analyzed. The achieved advances as well as remaining questions and challenges still to be faced are generally outlined. (C) 2017 Elsevier B.V. All rights reserved.