High-temperature batteries could one day power road vehicles, according to the University of Nottingham, which has worked with Chinese universities to take a step forward with molten salt ‘metal-air’ batteries.
Researchers have found a way to convert liquid molten chemical salts in to a thick paste – into what is known as a ‘quasi-solid-state’ – without much compromising electrolytic performance.

The paste is made by adding a solid powder to the electrolyte, which is a highly conductive (~0.42S/cm) molten mixture of sodium and potassium carbonates.