Tesla plans battery manufacturing facility under project 'Roadrunner' - document

(Reuters) - Tesla Inc plans to build a battery research and manufacturing facility in Fremont, California, to be operated around the clock, under a project dubbed Roadrunner, documents from the city government showed.The plan signals the U.S. electric vehicle (EV) maker's efforts to make its own automotive batteries, EVs' most expensive components.Tesla, which said it currently has a "small-scale" battery manufacturing operation in Fremont, applied for city government approval to build an..