Solid-state batteries exist as automotive vaporware currently so all the usual caveats about Forward Looking Statements apply*. They are alluring because of the difference in the use of an electrolyte that is made of solid material instead of the commonly used liquid electrolyte. The electrolyte, of course, is needed to transport ions back and forth between the electrodes when charging and discharging the battery. Solid electrolytes promise enhanced battery safety, as well as the use of new types of anodes, such as lithium-metal anodes. These can provide in theory an almost doubled energy density compared to today’s Li-ion battery cells. As a result, they also promise an increase in range, while at the same time ensuring shorter charging times.