Explanation

A high temperature solid electrolyte secondary cell was invented in 1967. The active materials of the negative electrode and positive electrode are molten metal sodium and sulfur respectively, and the electrolyte is Lu alumina, which is a solid sodium ion conductor. It also serves as a separator. The operating temperature of sodium-sulphur battery is 300-350 ° C, and the open circuit potential of monomer battery is 2.08V. The theoretical specific energy is 750W-h/kg. sodium-sulphur battery has been applied in energy storage power plants due to its advantages of high specific energy and power, long charge discharge cycle life, abundant raw materials, low cost, etc.

Classification