The countries all over the world pay more attention to the sustainable development of economy and environmental protection. The application of renewable energy technology is developing rapidly, especially wind power and photo voltaic power. Smart grid is a new industry growth area to improve energy efficiency and to increase power grid application efficiency and reliability.

Vanadium Flow Battery(VFB), as high-quality environmentally safe, large electric energy storage systems, possess high efficiency, large capacity, long lifetime and to withstand large current charge and discharge frequently. Vanadium Flow Battery(VFB) can overcome the disadvantages of electric power transportation and storage of wind, solar and other renewable energy generation technologies; Adjust electric power peak and valley storage; Supply emergency standby electric power and electric power storage for EV charge station, communication station, data centre etc...VFB is fastest developing technology in chemical energy storage industry.

Ion exchange membrane (diaphragm) is the key comonent material of VFB, which is mainly supplied by the E. I. Dupont Company presently. Through the ten year's technical cooperation and innovation, by using of completely different materials and technology, we develops high-performance ion-exchange membrane with superior properties in higher strength, better ion conductivity, high resistance to oxidation and reduction, low vanadium ion cross-over, stable and reliable, low cost, and can be large-scale manufactured. The monopoly situation of the VFB's diaphragm industry was broke down by the innovation of our new ion exchange membrane will create new opportunities for the large-scale industrialization of energy storage technology-VFB in China, even all over the world.