Electrochemical Capacitors (called Ultracapacitors or Supercapacitors) are a new class of capacitors developed over decades. Most significant developments have been made since the onset of twenty-first century. Ultracapacitors are new energy storage technology with high power density, and offer almost instant charging and discharging possibilities. They have very wide operating temperature range, and can stand extremely long life of over a million charge discharge cycles. Their construction allows values running into Farads or several thousand farads, enabling them to store incredibly large amount of charge. Energy stored in them is of an order comparable to batteries.

Ultracapacitors have stirred interests all over the world because of their unique properties. They find extensive use in wide range of markets including electrical grids, vehicles, mobile phones and many other applications. They supplement batteries in several applications and extend their life several folds.

Ultracapacitors offer good benefits in the form of energy savings, pollution-free clean power and significant fuel saving across all these applications. The book “Ultracapacitors- Future of energy Storage” deals extensively with all aspects of this interesting technology. It gives a panoramic view of all types of ultracapacitors, their principle, construction and wide range of applications. The book is an essential reading material for everyone in electrical and electronic field, as also designers and researchers alike.