A new prototype solid-state battery developed by Chery Automobile promises to more than double typical electric-vehicle energy density: approximately 600 Wh/kg compared to 200-260 Wh/kg today. 

That leap could allow EVs to travel up to 807 miles (about 1,300 km) on a single charge.
Beyond range, the solid-state structure is also safer and faster-charging. Early tests showed the battery withstood nail penetration and drilling without catching fire. 

Chery plans a pilot rollout in 2026 and full deployment in 2027. Still, big hurdles remain. Cost is currently up to 2.8 times that of existing lithium-ion packs, and manufacturing at scale with high yields is a challenge. If they’re overcome, though, this tech could mark a major milestone in electric mobility. 

Although Chery made this particular advancement, Toyota is also pursuing solid-state battery technology with more than 1,700 related patents to date. Making this technology a reality on the roads isn't a matter of “if” but “when”.