Ener1, a unit of Volvo and partners Th! Nk Global will invest 237 million dollars in a factory in the U.S. for the production of batteries dedicated to the automotive sector. The structure will have a production capacity of 600,000 batteries for hybrid cars or 60,000 for all-electric car. EnerDel said it wants to install this new facility as close as possible to Indianapolis, home to the headquarters of the company.