Jason Forcier (right), vice president and general manager of A123 Systems Inc., shows off a lithium-ion battery at a plant in Romulus, Mich., in 2011 to (from left) A123 President and CEO David Vieau, Rep. John D. Dingell, Michigan Democrat, and Energy Secretary Steven Chu. Now in bankruptcy, the pending sale of A123 to a China-based company has vendors and stockholders trying to recoup some of they money they have lost. (Associated Press)

Jason Forcier (right), vice president and general manager of A123 Systems Inc., shows off a lithium-ion battery at a plant in Romulus, Mich., in 2011 to (from left) A123 President and CEO David Vieau, Rep. John D. Dingell, Michigan Democrat, and Energy Secretary Steven Chu. Now in bankruptcy, the pending sale of A123 to a China-based company has vendors and stockholders trying to recoup some of they money they have lost. (Associated Press)