WEST HARTFORD, CT--(Marketwire - April 6, 2011) - The law firm of Izard Nobel LLP, which has significant experience representing investors in prosecuting claims of securities fraud, announces that a lawsuit seeking class action status has been filed in the United States District Court for the Southern District of New York on behalf of purchasers of the common stock of Advanced Battery Technologies, Inc. ("Advanced Battery" or the "Company") (NASDAQ: ABAT) between March 16, 2009 and March 29, 2011, inclusive (the "Class Period").