Lithium-Air / Lithium-Ion Hybrid Battery for Military Use

Period of Performance: 01/16/2007 - 11/25/2007


Phase 1 SBIR

Recipient Firm

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


This SBIR Phase I effort will be to construct and evaluate a high specific energy and high power lithium-air/ lithium-ion hybrid battery system. One of the challenges of incorporating metal-air batteries into existing equipment is the power requirements. Metal-air systems are typically very high in energy density but low in power. A method to overcome the power issue to is to use a hybrid battery composed of the metal-air battery with another battery capable of high power discharges. Yardney has obtained extensive experience in lithium-ion batteries for military and aerospace applications. We also have an advanced lithium-air program with the first ever, large prototype non-aqueous lithium-air cell. We specialize in lightweight batteries used in aerospace applications. We also research, develop, and sell high energy density metal-air batteries. Yardney will research and develop a hybrid Lithium-Air / Lithium-Ion Battery by building and discharging the hybrid batteries with different system configurations. This research will eventually lead to a hybrid system delivering a specific energy greater than 1000 Wh/kg.