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Issue 1, 2018

The next generation vanadium flow batteries with high power density – a perspective

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Abstract

Vanadium flow batteries (VFBs) have received increasing attention due to their attractive features for large-scale energy storage applications. However, the relatively high cost and severe polarization of VFB energy storage systems at high current densities restrict their utilization in practical industrial applications. Optimization of the performance of key VFB materials, including electrodes, electrolytes and membranes, can realize simultaneous minimization of polarization and capacity decay. The power density and energy density of VFBs are thus simultaneously enhanced. Moreover, relevant theoretical mechanisms and foundations based on virtual investigations of VFB models and simulations can guide these optimizations. The improved power density and energy density can reduce the cost of VFB energy storage systems, accelerating their successful industrialization. In this perspective, modification methods to optimize the performance of key VFB materials and investigations of models and simulations of VFBs will be discussed. Therefore, the available ideas and approaches will be provided to direct further improvements in the power density and energy density of VFB systems.

Graphical abstract: The next generation vanadium flow batteries with high power density – a perspective

Article information


Submitted
04 Nov 2017
Accepted
24 Nov 2017
First published
06 Dec 2017

Phys. Chem. Chem. Phys., 2018,20, 23-35
Article type
Perspective

The next generation vanadium flow batteries with high power density – a perspective

W. Lu, X. Li and H. Zhang, Phys. Chem. Chem. Phys., 2018, 20, 23 DOI: 10.1039/C7CP07456E

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