The importance of energy storage devices has been constantly
growing with the recently increasing popularity of various portable
electronic devices and motor vehicles. One type of such energy storage
devices are electric double layer capacitors (EDLCs), relatively
new electrochemical energy storage media with a somewhat lower
specific energy, but much higher specific power and longer cycle
life than most rechargeable batteries. EDLCs are now under urgent
scrutiny for extensive possible uses in power electronics for backup
memories and peak power saving