Solid-state batteries are called the “holy grail” of EV battery tech for a reason, right? The new battery tech is quickly moving from the lab to the real world, with some claiming to unlock over 800 miles of driving range. Solid-state EV batteries promise to double driving range Several major Chinese automakers have begun, or plan to begin, testing solid-state batteries in vehicles over the next few months. BYD and CATL, which accounted for over 55% of global EV battery sales last year, both pla...