Optimization of electrode parameters of Na Co[Fe(CN)6]0.88/Na Cd[Fe(CN)6]0.99 tertiary battery

A tertiary battery, which is charged by temperature change, has two performance indexes: the thermally induced voltage (Vcell) and discharge capacity (Qcell). Among them, Qcell is determined by the electrode parameters such as charge coefficient [β+ (β−)] of redox potential (V) and weight [m+ (m−)] of the active material in the cathode (anode). In this report, we optimized electrode parameters to maximize Qcell of NaxCo[Fe(CN)6]0.88/NaxCd[Fe(CN)6]0.99 tertiary battery. By this optimization, Qcell reaches 4.9 mAh/g between 293 K and 312 K.