Samenvatting
A development program for sodium-sulfur electric vehicle (EV) batteries has been successfully completed under U.S. Department of Energy and Ford Motor Company sponsorship. The program objectives were to verify the projected performance benefits of sodium-sulfur in ev applications, and to demonstrate improved cell and battery reliability. The program scope included design of a full-scale 35-kWh battery system; qualification of the cell and module designs; and fabrication and test of a one-third capacity sub-battery. Results from the battery design and sub-battery testing will be presented. (A)