The new capacitor has a high capacitance density of 13F/cc per cell volume and the world's highest operating voltage of 3.0V. These features enable the new capacitor to resolve a weakness of capacitors, namely the lack of energy compared with secondary batteries, and provide a high energy density of 10 Wh/liter at a high output range of 1000 W/liter. With this development, we expect that the capacitor will find ready applications in industrial fields, such as in the automotive industry.
In collaboration with ELNA Co., Ltd., an affiliated manufacturer of capacitors, Asahi Glass started development of an electric double-layer capacitor in 1985. The collaboration yielded the successful development of a small, coin-shaped capacitor used primarily for the back-up of IC memories and mass-production commenced at ELNA Co., Ltd. in 1988.
The current requirement for automobile application is a high-output from a small-sized power source, so it is expected that there will now be considerable demand for use in hybrid cars and fuel cell cars.