Lithium Air Rechargeable Battery

Quallion LLC"s (Quallion) proposal responds to SBIR Solicitation No. A10-139 entitled"Lithium Air Rechargeable Battery."The solicitation calls for lithium air battery with a much higher energy density and longer duration energy storage system to replace lead acid or lithium ion batteries in non-primary power systems and silent watch applications. To achieve the objective in Phase I, Quallion proposes to develop a rechargeable lithium-air system to increase energy density and cycle stability. This new development will reduce the overall weight of current primary lithium-air technology and stabilize the lithium metal thereby increasing energy density to 1000 Wh/kg and cycle life to 200 cycles. In addition, the proposed technology will provide limited self-discharge, good charge/discharge efficiencies, low temperature performance, and long calendar life of lithium batteries. Phase I will demonstrate the performance of cell prototypes incorporating the new developments. In Phase II, multiple cells will be built with the modified design and tested over the conditions of interest to demonstrate the target goals of 1000 Wh/kg and 200 cycles.