CATL has announced plans to begin small-scale trial production of its solid-state battery cells in 2027, aligning with BYD’s own timelines for SSB trials. The reply also states that CATL plans to begin small-scale SSB production on pilot lines in 2027. Alongside the patents, BYD also committed to a trial run of SSB production in 2027. CarNewsChina reported earlier that the firm had set the threshold for large-scale SSB production at 1 million vehicles. More on CATLAccording to China EV DataTracker, CATL is China’s largest battery maker, with 32.59 GWh of installed capacity in June 2026.