Tesla uses its own proprietary lithium-ion batteries in its electric vehicles and energy storage products. The company produces these batteries at its Gigafactory, a large-scale battery manufacturing plant located in Nevada, USA.

However, Tesla has also worked with several other battery manufacturers in the past, including Panasonic, which supplied battery cells for Tesla’s Model S, Model X, and Model 3 vehicles. Tesla and Panasonic have a long-standing partnership, and the two companies have worked together to develop new battery technologies, including the high-energy-density 2170 battery cell used in Tesla’s Model 3 and Model Y vehicles.

In addition to Panasonic, Tesla has also worked with other battery suppliers in the past, including LG Chem and CATL, to diversify its supply chain and reduce its reliance on a single supplier. However, the company has not disclosed any recent partnerships with other battery manufacturers.