Ag decorated α-MnO2 nanorods are studied as a cathode catalyst for rechargeable lithium-oxygen battery (LOB). The composites are synthesized by in-situ composite technique in the presence of polymeric additives and characterized by SEM, XPS, and FT-IR. The battery with Ag decorated α-MnO2 nanorod composite electrode shows an initial discharge capacity of 793 mA hg-1(electrode), with reversible charge capacity of 778 mA hg-1(electrode), while battery with only α-MnO2 has discharge capacity of 510 mA hg-1(electrode) and charge capacity of 504 mA hg-1(electrode). No Li2O or Li2O2 can be detected after discharge and Li2CO3 is the main discharge product, which suggests that the decomposition of organic carbonate electrolyte occurs during discharge.
ASJC Scopus subject areas
- 化学 (全般)