Supercapacitors, sometimes called double-layer or ultra-capacitors, are special types of capacitors that have capacitance values far greater than conventional electrolytic capacitors. Cornell Dubilier/Illinois Capacitor’s DGH series is such a device, offering many times the storage capacity of common electrolytics. Its design is based on a structure having an activated carbon anode and cathode, with an organic electrolyte. Unlike a rechargeable battery, a DGH capacitor is especially well suited for providing short, high-power bursts of energy. Recharging is fast, with long-life energy storage.