A research team headed by Prof. ZHANG Huamin from the CAS Dalian Institute of Chemical Physics (DICP) has made important progress in the research and development of an all vanadium redox flow battery (AVRFB)-LCD screen demo system. The demo system has operated continuously for over one year without any malfunctioning, and the total running time accumulated to 8,800 hours.
The system is comprised of a kilowatt-scale battery, an energy controlling system and a screen load. Its key component is the AVRFB with a 2kw rated power output. No deterioration in power output has been detected up to now.
The new system is a kind of electric energy storage device composed of battery modules, an electrolyte solution and its transferring system, as well as an energy controlling system. Comparing with similar systems, such as the Secondary Battery or the Electrochemical Capacitor, the AVRFB is superior in the capacity of energy storage. Other features of the system include high energy transformation efficiency, high storage capacity, independent of capacity from output power, high reliability, low performance and maintenance costs, safety in operation and environmental-friendliness. Consequently, the AVRFB is considered as the most promising candidate for large scale energy storage systems.
The 10kw AVRFB system developed by DICP has won the First Award for Scientific and Technological Progress of the Dalian Municipal Government in 2007.
