Thermally Stable High Energy Lithium-Ion Batteries for Naval Aviation Applications

Electro Energy has developed a robust high energy density and high specific energy lithium ion wafer cell that has demonstrated suitable characteristics for the development of advanced lithium ion battery chemistry. The cell in addition to being lightweight is easily manufactured and designed for implementation in both a high power and a high energy configuration. Electro Energy has demonstrated advanced electrodes which when fully integrated into the wafer cell will produce a lithium ion battery technology which will satisfy the demands placed upon Navy aircraft. This proposal provides for research and development of an advanced lithium ion battery chemistry that operates safely at a specific energy greater than 200 Wh/kg, and an energy density greater than 400 Wh/l. The key technologies for the proposed high energy battery are a superior cathode, stabilized carbon anode and a high performance ceramic separator. The research and development is expected to enable a complete battery which will demonstrate functionality and stability over a wide temperature range (-40°C to +80°C), high energy density (> 200 Wh/kg at the battery level), low self-discharge (5,000 at 100% depth of discharge cycles), and long calendar life (>5 years service and storage life).