CATL advances to 20 Ah solid-state EV cells, targeting 500 Wh/kg

CATL said its sulfide-based all-solid-state batteries have reached 20 Ah trial production. The company plans small-scale output in 2027 and mass production around 2030, aiming for an energy density of 500 Wh/kg.

• CATL held a 39.9% share of the global EV battery market in the first half of 2026
• Trial cells are 20 Ah with a sulfide-based solid electrolyte
• Small-scale production is planned for 2027, mass production around 2030
• Target energy density is 500 Wh/kg