Last week, we reported on Tesla starting to take delivery of important quantities of battery cells from a new supplier: Samsung SDI. At the time, we contacted Tesla to know what the cells will be used for, the company declined to comment, but we speculated that it could be used for ‘Tesla Energy’ products.

Now prompted by a Reuters report yesterday citing Samsung SDI sources claiming that they are in negotiation with Tesla to supply batteries for its cars, Elon Musk has confirmed that Panasonic will be exclusively supplying cells for the Model 3, S and X. expand full story