All vanadium redox flow battery energy storage, referred to as vanadium battery energy storage system for short. Using the change of vanadium ion valence state to realize the storage and release of electric energy, it can be used for large-scale and high-capacity power grid energy storage, including cooperating with smart grid, wind and solar power generation, peak cutting and valley filling, as standby power supply, etc.

All vanadium redox flow battery energy storage is based on the redox reaction of metal vanadium ions and its valence state changes. The all vanadium flow battery can realize charging and discharging, energy storage and release, which is a process that can cycle almost indefinitely, safe and reliable. Compared with battery energy storage systems such as lead-acid and lithium batteries, the electrolyte of all vanadium flow battery can be almost 100% recycled when the energy storage project is terminated, which greatly improves the economic benefits and environmental protection advantages of the project.