Tesla has a lab trying to build its own battery cells

Tesla is developing the means to manufacture its own battery cells, according to five current and recent employees, something that the electric vehicle maker has relied on Panasonic to do since the companies signed an extensive partnership deal in 2014. Even if Tesla’s effort to start making battery cells is successful, the company is not likely to cut ties with Panasonic and other battery suppliers any time soon. Tesla employees familiar with cell supplier negotiations said the company is most likely to work with Panasonic and LG to provide the cells that go into the initial Model 3 vehicles produced in its Shanghai factory.

Source: www.cnbc.com