China Nonferrous Metallurgy

The vanadium redox liquid flow battery is a kind of safe, environmentally friendly, stable and long-life electrochemical energy-storing device, which is of great significance for the implementation of green-power energy storage and the policy of carbon peaking and carbon neutrality. In this paper, the structure and features of the vanadium liquid flow battery are introduced firstly; then the vanadium battery application status and the progress of research on the electrolyte, electrode and diaphragm are reviewed in detail; the relevant state policies on vanadium resources and full vanadium battery are briefed, followed by the estimate of the current market size of vanadium liquid flow battery based on the available data. Finally, the vanadium battery technology and its industrial development status are summarized and the key research directions in the future are prospected.