Issue 6, 2023

An aqueous rechargeable and high-capacity zinc ion battery using a novel rGO–V2O5–SiO2 hybrid nanocomposite as a cathode material

Abstract

We report an aqueous Zn–rGO–V2O5–SiO2 pouch-type rechargeable zinc ion battery (ZIB) with a rGO–V2O5–SiO2 hybrid nanocomposite as the cathode, Zn as the anode, and 0.5 M Zn (CF3SO3)2 as the electrolyte. The rGO–V2O5–SiO2 hybrid cathode, in the presence of an aqueous electrolyte, intercalated Zn2+ ions in its 3D layers due to the high surface area and porosity of the developed nanorod structures. Furthermore, the combined electrical conductivity of rGO and V2O5 with high water adsorption capacity of silica synergistically affects the charge–discharge rate and stability of the ZIB. As a result, the aqueous rechargeable battery depicts a specific charge capacity of 640 mA h g−1 at 200 mA g−1 and a high-performance rate of 890 mA h g−1 at 20 mA g−1 which are further stacked in series to obtain a capacity of 502 mA h g−1 at 12 V. The pouch cell configuration makes this battery a potential candidate for large-scale energy storage applications.

Graphical abstract: An aqueous rechargeable and high-capacity zinc ion battery using a novel rGO–V2O5–SiO2 hybrid nanocomposite as a cathode material

Supplementary files

Article information

Article type
Communication
Submitted
12 4 2023
Accepted
22 5 2023
First published
31 5 2023
This article is Open Access
Creative Commons BY-NC license

Energy Adv., 2023,2, 797-804

An aqueous rechargeable and high-capacity zinc ion battery using a novel rGO–V2O5–SiO2 hybrid nanocomposite as a cathode material

A. Lata, A. Kumar, G. Biswas, N. Chanda and R. K. Arun, Energy Adv., 2023, 2, 797 DOI: 10.1039/D3YA00158J

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