Nano silver oxide (AgO) as a super high charge/discharge rate cathode material for rechargeable alkaline batteries

Abstract

The present paper reports the synthesis, characterization and electrochemical properties of a nano-structured AgO material. The studies results show that the nano-structured AgO electrode still has good electrochemical characteristics at a charge and discharge current as high as 10 000 mA g⁻¹. The electrode offers a discharge voltage of 1.4 V, a discharge capacity of 360 mAh g⁻¹ and an exciting specific power density up to 14 kW kg⁻¹, much higher than the current level of ca. 1–2.5 kW kg⁻¹ for existing secondary batteries and super capacitors. The super high speed ability of charge/discharge makes the charge or discharge time of the electrode shorter than 2 min 53 s.