An electrochemical flow capacitor (EFC), or simply flow capacitor, is an electrochemical energy storage device that combines characteristics of supercapacitors and redox flow batteries (RFBs).

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An electrochemical flow capacitor (EFC), or simply flow capacitor, is an electrochemical energy storage device that combines characteristics of supercapacitors and redox flow batteries (RFBs).

From Wikipedia (CC BY-SA 4.0).