Samsung Just Showed a 600-Mile Solid-State EV Battery, Charges in 9 Minutes https://www.rideapart.com/news/728316/samsung-ss-ev-battery-coming-soon/ Then, of course, there’s the issue of cost. At present, it costs way more to manufacture solid-state EV batteries than Lithium-ion and LFP batteries found in current EVs—around three or four times, to be specific. Perhaps that’s why Toyota plans on introducing solid-state batteries on its Lexus vehicles first, where profit margins are much higher.