Question

Calcium ion intercalation in prussian blue and pb-​analog cathodes for high performance energy storage

Answer 1

Everybody observed about the electrochemical insertion of Ca2+ into Prussian blue analogue, MnFe(CN)6, in nonaqueous solutions of Ca(CF3SO3)2 and various solvents including ionic liquid at 60 °C temparature . The kinetics for the calcium ion Ca2+ insertion reaction were studied by cyclic voltammetry, and were compared to those of Na+ intercalation. By coupling this phenomenon with metallic anodes, two energy storage devices were made. Ca anode produced a primary cell that operated at a voltage of around 2.0 V. When Mg plate was used as an anode, the negative active material associated with CF3SO3–, which have already reported was newly formed at the surface of Mg plate. Now needs the fusion so by combining the negative active material, have fabricated a novel rechargeable battery using dual ion transport species of Ca2+ for the cathode and CF3SO3– for the anode, and demonstrated that the battery showed repeated discharge/charge performance.