This work aims to explore straightforward, scalable fabrication methods for thin-film rechargeable batteries comprised of solvent-free, mechanically stable polymer electrolytes and dense metal oxide cathodes. The methods devised in this work are intended to assist the U.S. Office of Naval Research to move from a research phase to a development phase for solid polymer electrolyte batteries used for a multitude of military applications. More broadly, these efforts will also enable further technologies to be developed in the civilian and commercial sectors – enabling technologies such as in the portable electronics sector, for alternatively-powered vehicles, and energy systems.

As research in energy devices moves toward nanoscalar and high-interface systems, understanding the interfacial science and kinetics of these systems is increasingly crucial. One goal of this work is to characterize and control interfacial properties to address performance limitations and failure modes in the lithium ion battery system. Particularly, this involves mitigating problems particular to electrode-polymer interface via surface modification and/or improved fabrication methods. Using electrochemical techniques, we can probe and evaluate performance properties of these interfaces.