Tesla has held battery supply deals with Panasonic, CATL, and LG Chem, but has also started building its own cells in-house. In 2020, Tesla unveiled its 4680 battery cell, which has already been prototype-tested by Panasonic. Tesla has been building the cell at the Kato Rd. facility just a few blocks away from Fremont’s front doors. The automaker has not scaled this cell to mass production as of yet, and Tesla could always use more battery cells.
Fremont 4680 battery production green lit + Texas’ bizarre stockpile
