China Enforces Strict Solid-State Battery Standard Mandate (July 2026)

China implemented its official national solid-state battery standard on July 1, 2026, establishing a mandatory threshold requiring cells to retain less than 5% liquid electrolyte by weight (verified via 120°C vacuum chamber testing) to carry an 'all-solid-state' designation. This regulatory shift eliminates marketing ambiguities surrounding semi-solid or hybrid configurations and forces manufacturers to prove production-ready lines before securing commercial certification. Consequently, suppliers are splitting focus between certified GWh-scale pilot lines and lower-cost semi-solid retrofits.