SBIR-STTR Award

Reserve batteries with improved energy density and voltage regulation are needed which are capable of meeting existing and future strategic missile requirements. Silver oxide cathodes with superior thermal stability (aging) and voltage performance will be evaluated using new, unusually efficient electrode structures. An innovative hybrid cell construction, lightweight current collectors, and new lightweight electrolytes will be evaluated in subscale size cells. The best candidates will then be evaluated in full sizes cells in terms of activation, discharge performance, and weight. A battery layout design based upon the program results will be prepared at the completion of the Phase I work. The design will be compliant with the requirements for the APS.

Keywords:
Silver Oxide Current Collector Electrolyte Monopolar Bipolar

The Phase II program is an extension of the Phase I program, where highly efficient silver oxide cathodes were demonstrated to deliver greater than 90% utilization at current densities to 80ma/cm2 at temperatures as low as 7C. Under Phase II, a companion non-aqueous zinc anode will be evaluated the electrode processes will be scaled up to a pre-pilot level. The final electrodes will be characterized physically, chemically, and in electrochemical tests. Inorganic separator material will be evaluated. The aging of fully configured hybrid cells with the combined component improvements will be evaluated, along with dynamic environments testing. The Phase II program is an extension of the Phase I program, where highly efficient silver oxide cathodes were demonstrated to deliver greater than 90% utilization at current densities to 80ma/cm2 at temperatures as low as 7C. Under Phase II, a companion non-aqueous zinc anode will be evaluated the electrode processes will be scaled up to a pre-pilot level. The final electrodes will be characterized physically, chemically, and in electrochemical tests. Inorganic separator material will be evaluated. The aging of fully configured hybrid cells with the combined component improvements will be evaluated, along with dynamic environments testing.