Chery unveils 600 Wh/kg solid-state battery promising 800-mile range

Chinese automaker Chery has unveiled a prototype solid-state battery module boasting an energy density of 600 Wh/kg, roughly double that of current liquid lithium-ion EV batteries, which typically range from 250 to 300 Wh/kg. This breakthrough could enable electric vehicles to achieve driving ranges of up to 800 miles (1,300 km) on a single charge, significantly surpassing the 311 to 373 miles (500 to 600 km) typical of today’s long-range EVs. The battery features an “in-situ polymerized solid electrolyte” that replaces the flammable liquid electrolyte in conventional batteries, along with a lithium-rich manganese cathode to enhance energy storage and safety. Solid-state batteries also offer advantages such as reduced fire risk, faster charging, longer lifespan, and better performance in extreme temperatures. Chery plans to begin pilot production of this battery in 2026, with mass production targeted for 2027, potentially positioning itself ahead of major Chinese battery makers like BYD and