Issue 3, 2018

Electrodeposition of hydrated vanadium pentoxide on nanoporous carbon cloth for hybrid energy storage

Abstract

Electrodeposition is a simple and effective method for the synthesis of disordered hydrated vanadium pentoxide (V2O5·nH2O). For the synthesis of energy storage electrodes with high power performance, electrodeposition of hydrated V2O5 inside carbon micropores is particularly attractive to synergize electric-double layer formation and lithium ion intercalation. Here, we demonstrate that hydrated V2O5 can be effectively electrodeposited in carbon micropores of activated carbon cloth. Our study indicates that carbon pores larger than 1 nm are essential for the effective decoration with hydrated V2O5. A thermal treatment after the electrodeposition is often used to enhance the crystal structure of hydrated V2O5. However, thermal annealing of the hydrated vanadium pentoxide decorated activated carbon cloth under an oxygen-rich environment at high temperature (>330 °C) leads to a significant loss of pore volume, leading to a decreased electrochemical performance. At low annealing temperature (200 °C), the vanadium pentoxide electrodeposited activated carbon cloth electrode exhibits a maximum specific capacity of 137 mA h g−1 with stable cycle performance over 1600 cycles at a rate of 4C.

Graphical abstract: Electrodeposition of hydrated vanadium pentoxide on nanoporous carbon cloth for hybrid energy storage

Supplementary files

Article information

Article type
Paper
Submitted
17 Қар. 2017
Accepted
10 Қаң. 2018
First published
10 Қаң. 2018

Sustainable Energy Fuels, 2018,2, 577-588

Electrodeposition of hydrated vanadium pentoxide on nanoporous carbon cloth for hybrid energy storage

J. Lee, S. Badie, P. Srimuk, A. Ridder, H. Shim, S. Choudhury, Y. Nah and V. Presser, Sustainable Energy Fuels, 2018, 2, 577 DOI: 10.1039/C7SE00559H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements