The batteries could increase the performance of electric vehicles significantly if they prove to be practical.

Solid Power won't make and sell full batteries in the future. Solid electrolyte material will be provided to other battery makers.

The shuttles charge the batteries as they charge. Solid-state batteries use a layer of electrolyte that is sandwiched between the other layers of the battery to ferry charge.

New options for battery chemistry are unlocked by the approach. If a solid were swapped in instead of a liquid, the chemistry could be used in a better way.

Cars could go farther before running out of charge if a battery that could pack more energy into a smaller space was developed. A vehicle that used to travel 350 miles before needing to be charged might be able to travel 500 miles with Solid Power's batteries.

It would be easier to build safer cells if the liquid was removed. Remove the liquid from the batteries and they won't need to be added to make sure they don't catch fire. The internal temperature controls and safety systems of the battery packs need less space.

The idea of taking liquid electrolytes out of battery cells is not new according to a chemist and battery researcher. Most of the research on solid batteries has been done with organic materials.