PALO ALTO, U.S. -- Tesla's planned shift to in-house production of electric vehicle batteries has caused investors to question the automaker's partnership with longtime Japanese cell supplier Panasonic.
Technology
Musk and Tesla shock Panasonic investors with battery ambitions
EV maker plans for in-house production to outstrip its supply from Japanese partner
Tesla revealed Tuesday that it intends to produce 100 gigawatt-hours' worth of battery cells by 2022, roughly three times what Tesla purchases from Panasonic today. © Reuters
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