Sumitomo Electric Industries, Ltd. provides Vanadium Flow Battery System.

The vanadium flow battery (redox flow battery) is a large scale energy storage system. It can be used to absorb and stabilize the fluctuations of outputs caused by renewable energy sources. The vanadium flow battery will charge and discharge based on oxidation and reduction of vanadium ions in electrolyte and therefore have a very long life cycle without safety risks. This will enable batteries to be used on a large scale safely.