Today's electric cars use lithium-ion batteries with liquid electrolytes. While they represent an initial step toward slowing the march of global warming, these batteries are not without a significant price premium. They also offer a limited driving range, typically under 100km between charges. In addition, a fire risk exists with the use of flammable organic electrolytes when short circuits increase temperature. An article in the Energy Quarterly section of the December 2014 issue of MRS Bulletin examines all-solid-state batteries and their use in electric vehicles as a successor to lithium-ion batteries with liquid electrolytes.