Mitsubishi Electric has improved electric double layer capacitor past (ElectricDoubleLayerCapacitor) shortcomings, 2, a power supply for electric double layer capacitor test the products, including a Lighting capacitor  charge-discharge time from the original products over the past 20 seconds, only to shorten the time-consuming one second 10 minutes. And the other an energy density increased to 9 Wh / kg, the original product than a 20% increase in capacity to 0.42 Ah (1522F).
     Electric double layer capacitors (ElectricDoubleLayerCapacitor) is the use of double-layer principle, prepared energy storage, so as electrical double-layer capacitor. Untried discharge with a high-capacity, fast charging time than traditional capacitors hundreds of times higher than the electric capacity, long service life, operation stability ... etc., it is also known as the ultra high capacitors.
     To meet user demand and application efficiency in the charge and discharge of time, has always been the goal of improving the industry, in order to shorten time to charge and discharge, Mitsubishi Electric is in its capacitors, coconut Paper anode to the activated carbon as the main raw material, substantially reduced electrode thickness, reduce about 1 / 3 of resistance, successful completion of a second can charge and discharge action.
     Furthermore, in order to increase the electrical capacity, Mitsubishi Motors applied in the use of activated carbon electrode surface to raise the "surface area", and the activated carbon in improving the electrolyte dielectric material, it can be released in the electrolysis a lot of charge, the use of Additives, withstanding Lighting capacitor  voltage from the original 2.7 V to 3.0 V improved, and energy density at the same time increased by 20%.
     To increase the surface area of electrodes and Mitsubishi Motor Manufacturing of thin electrodes, which in 30 μ m thick aluminum foil, paste activity after treatment, 10 μ m thick activated carbon sheet structure, increasing the electrode surface area, will greatly increase the efficiency of discharge . 2, the new test products, is expected to be in volume production in 2010 listed the main motor for the renewable electricity savings, and the realization of the power output of solar cells, such as smooth application.