Sunwoda tests 400 Wh/kg solid-state cells with carmakers as CATL eyes 2027

Sunwoda's battery unit said on Oct. 30 that its 20 Ah polymer-composite solid-state cell has passed design and process verification, with customers still evaluating it, CarNewsChina reported. The company did not name the automakers. Sunwoda puts the cell at 400 Wh/kg with more than 1,200 cycles at external pressure below 1 MPa. CATL, which is developing sulfide-based cells, repeated in an Oct. 27 investor response that it aims for small-batch production in 2027.