Tesla Model 3’s batteries are 207 Wh/kg. It strikes me as so close to the limit, whereas we usually are an order of magnitude under, in physics. At one point t

Tesla Model 3’s batteries are 207 Wh/kg. It strikes me as so close to the limit, whereas we usually are an order of magnitude under, in physics. At one point the only improvement beyond the physical barrier will be to throw electrons into a void sphere and call that a battery.