Shanghai Aowei Technology Development Co., Ltd was established officially in 1998,the headquarter is located in the state-level High Technology Park???Shanghai Zhangjiang High Technology Park. The company is an enterprise specializing in the development,production and sales of electric double layer capacitors and ultracapacitors. It is an integrated enterprise of producing,learning and studying comprised of experts,scholars and technicians. It has a stuff of 160 people, among which over 30% of the technicians hold high academic degrees. Electric double layer capacitors are widely used as alternative power in industries like different kinds of intelligent equipment and indicators,computers,household electrical appliances and electrically driven toys. Its self-developed patented product???ultracapacitor is a neotype energy storage device, whose energy density approaches that of conventional storage battery. It is mainly characterized by its high power density; besides it can be charged and discharged within minutes or even seconds if equipped with appropriate charge device; it has a wide working temperature range from -40??? to 60???; Its charge/discharge cycle life could reach 100.000 or even 500,000 times. It can effectively make up the defects of conventional storage battery like long charge /discharge time and short cycle life. It is a type of power which is maintenance-free and environmentally friendly. Its technical level is in the leading position all over the world. Its products are used to help start many kinds of vehicles and internal combustion engines, it is also used for the traction of automobiles, heavy-duty trucks and electric buses etc.