First commercially viable lithium solid state battery? There are Mercedes buses with solid state batteries right on the road right now: https://www.youtube.com

First commercially viable lithium solid state battery? There are Mercedes buses with solid state batteries right on the road right now: https://www.youtube.com/watch?v=Om3uVW4lskE&t=11s https://www.youtube.com/watch?v=Om3uVW4lskE&t=11s Okay, the battery needs to be heated significantly during use, so it's only applicable for larger vehicles. But still, seems to be further ahead in the product development cycle.