Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 7, Issue 44, Pages 24385-24389Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b06420
Keywords
rechargeable aluminum battery; multivalent cation battery; amorphous vanadium oxide; aluminum; dipropylsulfone; rechargeable battery; vanadium
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Amorphous vanadium oxide/carbon composite (V2O5/C) was first applied to the positive electrode active material for rechargeable aluminum batteries. Electrochemical properties of V2O5/C were investigated by cyclic voltamrnetry and charge-discharge tests. Reversible reduction/oxidation peaks were observed for the V2O5/C electrode and the rechargeable aluminum cell showed the maximum discharge capacity over 200 mAh g(-1) in the first discharging. The XPS analyses after discharging and the following charging exhibited that the redox of vanadium ion in the V2O5/C active material occurred during discharging and charging, and the average valence of V changed between 4.14 and 4.85.
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