Reuters: The cylindrical "2170 cells", which will be used to power Tesla's energy storage products and the new Model 3 sedan, have been jointly designed by Tesla and Panasonic, its longstanding battery partner. by Ankit Ajmera, Nikhil Subba, and Saumyadeb Chakrabarty
'The gigafactory will initially produce battery cells for the company's Powerwall 2 and Powerpack 2 energy products, Tesla said.
'The production of cells for Tesla's first mass-market car, the Model 3, is expected to begin in the second quarter.
'The name gigafactory comes from the plant's planned annual battery production capacity of 35 gigawatt-hours, which Tesla said on Wednesday it would achieve by 2018.'