Ultrahigh Specific Energy and Specific Power Ultracapacitor

ABSTRACT:To meet the current and future power needs of Air Force spacecraft, efficient energy storage systems are necessary to extend mission time, reduce weight, and increase capabilities. Ultracapacitors (also known as supercapacitors or electrochemical capacitors) are paramount in spacecraft applications where pulsed power profiles are expected. Current ultracapacitors have very long cycle life and high charge/discharge rates, but have relatively low specific energy. Advanced ultracapacitors with high specific energy and specific power over wide operating temperatures are required to support Air Force space missions. Lynntech proposes to develop advanced ultracapacitors by using two-dimensional hybrid electrode materials and ionic liquid based electrolytes to provide high specific energy and function over wide temperature ranges. During the Phase I, Lynntech will develop the electrode and electrolyte components and test cells to demonstrate high specific energy, specific power, long cycle life and operation over wide temperature ranges. During the Phase II, Lynntech will optimize materials and processes, and produce a prototype advanced ultracapacitor.BENEFIT:Advanced ultracapacitors with high specfic energy, high specific power, and wide operating temperatures can provide improved power systems for spacecrafts, portable electronics, tactical vehicles, weapons, and other systems. These properties allow for smaller, lighter devices capable of operating in extreme environments. Specific benefits of this technology for the Air Force include extended mission time, reduced weight, and increased capabilities. The advanced ultracapacitors can be used for numerous medium, high, and pulse-power applications in both military and private sectors. The private sector applications include hybrid/electric vehicles and consumer electronic devices.