This voltage value can be used to calculate the discharge-process time constant: The expression of: represents the hold-up capacitor discharge time constant.

Using Watts (which incorporates an element of time), the authors calculate that the power density of the device is over 100 times that of the activated carbon version.

This capacitor is capable of high current densities and high-capacity charging and discharging at temperatures of 200-300°C, creating the world’s first bulk-type all-solid-state capacitors.