Supercapacitors are attractive energy storage devices with the ability to recharge in seconds rather than hours like traditional lithium ion batteries. Supercapacitors are also maintenance free and can be used for up to a million charge/discharge cycles. Their high power density and excellent low temperature performance have made them the technology of choice for back-up power, cold starting, flash cameras, and regenerative braking. They also play an important role in the progress of hybrid and electric vehicles. However, the low energy density of current supercapacitors is the main impediment to realizing the full commercial potential of this technology. This has triggered tremendous research efforts on Nanotech Energy's part in order to develop new electrode materials that are capable of providing a huge amount of energy in a short period of time.