Abstract: The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. In some aspects, these flow capacitors have at least one electrode comprising a non-stationary solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent in electrical communication with at least one current collector, and energy is stored and/or released by charging and/or discharging the electrode(s).

Abstract: The invention concerns electrodes suitable for use in a redox flow battery, the electrode comprising a plurality of perforations ranging in diameter from 100 ?m to 10 cm. The introduction of such perforations is correlated to at least a 10% increase in the power density of the redox flow battery. The invention also concerns methods of making such electrodes and flow batteries having at least one such electrode.

Abstract: The present invention generally relates to devices for energy storage technologies, and more particularly to electrochemical flow capacitor systems and applications. Embodiments of this invention provide energy storage devices comprising: a positive electrode current collector, a negative electrode current collector, and an ion-permeable separator separating the positive and negative electrode current collectors; a positive electrode disposed between the positive electrode current collector and the ion-permeable separator; a negative electrode disposed between the negative electrode current collector and the ion-permeable separator; wherein at least one of the positive and negative electrodes comprises a non-stationary (including moveable or flowable, relative to the current collectors) solid or semi-solid composition comprising supercapacitive particles and an electrolytic solvent; and wherein the electrolytic solvent is substantially free of electrochemically oxidizable or reducible species.