• This photo shows US Energy Secretary Steven Chu (L center) as he talks with General Motors Chairman and CEO Ed Whitacre (C) and other elected officials after the first Chevrolet Volt battery came off the assembly line at the GM Brownstown Battery plant in Brownstown Township, Michigan on January 7, 2010. The facility is the first lithium ion battery pack manufacturing plant in the U.S. operated by a major automaker. Image by Jeffrey Sauger/AFP/Getty Images.
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