Why We Don't Have Crazy Good Five-Minute-Charging Batteries For Electric Cars Yet

Electric vehicle batteries are a problematic business: About half of the carbon generated by building the whole car is dedicated to the lithium-ion cell system, they weigh a lot—the Tesla Model S’ clocks in at 1,200 pounds, even at the smaller 85kWh size—and then there’s charging time, which for your current average…