The Na/S battery is a kind of advanced secondary battery which with β （β）- Al2O3 as the electrolyte, its negative electrode is metal sodium and positive electrode is sulphur. It has advantages of large capacity, small size, long service life and high efficiency. The raw material of the Na/S battery is widely and the production cost is low. In addition, it’s not limited by space and easy to maintain. The Na/S battery is widely used in stable supply of renewable energy such as peak load shifting, emergency power and wind power, In terms of improving the stability of the power quality, Na/S battery is a most maturely and potentially energy-storage battery in a variety of advanced secondary battery.