Machines are used to fabricate batteries at the A123 Systems lithium ion automotive battery manufacturing plant in Livonia, Michigan, U.S., on Monday, Sept. 13, 2010. Photographer: Jeffrey Sauger/Bloomberg
Machines are used to fabricate batteries at the A123 Systems lithium ion automotive battery manufacturing plant in Livonia, Michigan, U.S., on Monday, Sept. 13, 2010. Photographer: Jeffrey Sauger/Bloomberg