Tesla gets reality check on battery self-sufficiency

When Tesla unveiled its ambitious 4680 battery program in 2020, Elon Musk promised nothing short of a “revolution.” The larger cylindrical cells — 46 millimeters in width and 80 millimeters in length — were supposed to slash costs, boost driving range and help Tesla reduce reliance on outside battery suppliers. But recent developments suggest that achieving the company’s long-promised battery independence may be proving far more difficult than Musk envisioned — underscoring the technological edg

By The Korea Herald