Novel ternary molten salt electrolytes for intermediate-temperature sodium/nickel chloride batteries

▸ Ternary low melting point catholytes were developed. ▸ New catholytes revealed lower melting temperatures and adequate properties for the Zebra battery. ▸ The cell with the new catholyte exhibited reduced polarizations at 175 °C compared to the standard catholyte. ▸ The battery revealed stable cycling performance at temperature as low as 150 °C.