Fifteen years after its founding, California-based QuantumScape believes it has cracked the code to solid-state batteries. Roughly the size and shape of a silvery deck of cards, the company’s anode-free, lithium-metal cells promise to address virtually all of the shortcomings of today’s lithium-ion batteries. That means higher energy density, quicker charging, more power, safer operation and, theoretically, vastly better electric vehicles.
