Pre-intercalation δ-MnO2 Zinc-ion hybrid supercapacitor with high ...
Pre-intercalation δ-MnO 2 Zinc-ion hybrid supercapacitor with high energy storage and Ultra-long cycle ... the insertion/extraction of zinc ions is used as the cathode and activated carbon is used as the anode exploiting battery and capacitor energy storage mechanism ... (λ = 1.5418 Å) with the scanning range is 5-85°. The surface ...