| 초록 |
For the potential use of Na-halide redox flow batteries (RFBs), Na-β-alumina separator have been developed. Unsafe operation of Na-halide RFBs at high temperature, the Na-B-alumina saparator can be potentially use in non-aqueous RFBs. It is well documented that the non-aquous electrolytes are stable over wide electrochemical potential windows and therefore possible to make higher energy and power density RFBs. In this work, the Na-β-alumina separator performance evaluated using vanadium (III) acetylacetonate in non-aqueous electrolyte. Initial optimization for charging-discharging of Na-β-alumina was performed by current density and cell potential selection. Through the charging-discharging data, columbic and energy efficiencies were calculated. In separate charging-discharging experiment using Nafion324 membrane was performed and compared the columbic and energy efficiencies. |
