Rapid Updating of Target Knowledge Base for Automatic Target Recognition

Not Available Metal oxides are excellent hosts for lithium and are widely used a positive electrodes in lithium rechargeable batteries. In preliminary experiments, we have shown that V2O5 nanopowders exhibit substantially higher initial capacities in a lithium metal battery compared to standard coarse grained V2O5 powders. This is apparently due to an order of magnitude shorter diffusion distance for the small domain nanocrystalline material. In this program, we propose to produce a high specific energy (> 800 Wh/ kg) battery with good cycling life (> 300), using an intercalating metal oxide nanopowder (<100 nm particle size) as cathode material. The use of nanoparticle aggregates will enhance the rate of Li+ insertion. In Phase I, nanopowders of lithium-doped metal oxide system, namely LiCoO2 will be produced by our patented Combustion Flame ¿ Chemical Vapor Condensation (CF-CVC) process. Lithium (metal) test cells will be fabricated by working in collaboration with our industrial partner, who is also providing matching funds to this program. In Phase II, prototype lithium ¿ ion batteries will be fabricated and tested for electrochemical properties, such as energy density, power density and cycling life. Rechargeable lithium batteries utilizing nanocrystalline metal oxide powders will be produced on a commercial basis and marketed in Phase III of this program.