10 September 2013 – Electro Standards Laboratories, Cranston, a research and development company with expertise in motor controls and power systems, has invested its resources to further the technology of hybrid battery/super-capacitor systems for pulsed power applications.

There is a great deal of interest in technology that will improve energy efficiency through advances in both traditional and alternative energy storage, power systems, and renewable energy. Challenge areas include power generation and storage improvements for remote sensor buoys and for small unmanned underwater vehicles. Additionally, providing lightweight, high energy density and high energy volume approaches to store harvested energy on individuals, vehicles, and weapon systems would be beneficial.

Super-capacitors, batteries, and hybrid battery/super-capacitor systems can play a part in providing much needed improvements in these challenge areas. The advantage of super-capacitors is their high power density; the disadvantage is their low energy density. While batteries offer higher energy storage density, their power density is relatively low.

Taking all of these scientific challenge areas into consideration, Electro Standards Laboratories has developed a novel estimation methodology that can be used to evaluate the potential benefits of implementing hybrid battery-super-capacitor systems to improve battery life. This approach allows for a quick comparison of battery-only versus a hybrid battery-capacitor system in terms of maximising battery efficiency without the need for complicated and detailed computer simulations.

The company will be presenting a paper on hybrid battery / super-capacitor systems for pulsed power applications at the IEEE Energy Conversion Congress and Expo in Denver Colorado, USA, in September 2013.