Energy Storage Systems for Very High Altitude Very Long Endurance Solar Aircraft

Period of Performance: 12/07/2007 - 08/15/2008


Phase 1 SBIR

Recipient Firm

Yardney Technical Products, Inc.
2000 South County Trail
East Greenwich, RI 02818
Principal Investigator


One of the major challenges of developing aircraft is the development of an appropriate energy system. The energy system ideally has a large amount of energy with a very low weight. This equates to a high specific energy (Wh/kg). Lithium-air batteries offer the greatest theoretical specific energy for batteries at 13 kWh/kg. Yardney has extensive experience in requirements for battery power and metal-air cells. We specialize in lightweight batteries used in aerospace applications. We also research, develop, and sell high energy density metal-air cells. Yardney will research a Rechargeable Lithium-Air Storage System by creating an advanced rechargeable air cathode, and testing these cathodes in actual lithium-air cells under various environmental conditions. These batteries will provide a lightweight high energy storage device for military applications.