A123 Systems Inc. priced 28.1 million shares at $13.50 each, raising $378 million ahead of its stock-market debut on the Nasdaq on Thursday.Tapping into growth expectations for electric vehicles and billions in stimulus for the sector from the U.S. government, the Watertown, Mass.-based lithium ion battery maker is going public above its already-increased range of $10 to $11.50 a share...MUCH MORE