Abstract
Lithium air batteries receive significant interest because of their extremely high theoretical energy density. However, low solubility of oxygen in aqueous electrolyte limit oxygen transport to the reaction site, and effects of dissolved oxygen concentration on battery performance have to be understood fundamentally. In this study, oxygen concentration in aqueous electrolyte and thickness of the positive electrode were changed. As a result, strong impact of dissolved oxygen concentration on discharge characteristics were observed, and importance of enhancement of the oxygen transport to the reaction site was suggested.
