Synthesis of Na2MnFe(CN)6 and its Application as Cathode Material for Aqueous Rechargeable Sodium-ion Battery

Prussian Blue type Na2MnFe(CN)6 was prepared by direct precipitation method and a subsequent drying procedure as a cath-ode material for aqueous rechargeable sodium-ion batteries. XRD patterns showed that Na2MnFe(CN)6 has a typical Prussian Blue struc-ture with space group Fm3m. Na2MnFe(CN)6 presents good electrochemical behaviors at 10 mAg-1 discharge current density with specific capacity 73.1 mAhg-1 after 30 cycles. The results show that Na2MnFe(CN)6 could be a potential cathode material for aqueous Sodium-ion battery.