Axion Power International, Inc. (AXPWQ) develops, designs, manufactures and sells advanced energy storage components and devices based on its patented PbC lead-carbon battery technology; its core products include hybrid asymmetric PbC batteries and energy storage systems such as PowerCube units for applications in renewable energy systems, off-grid power, automotive start-stop systems, energy storage grids, locomotives and other industrial uses. Founded in 2003 and headquartered in Boardman, Ohio, with prior manufacturing operations in New Castle, Pennsylvania, the company targets utilities, renewable energy providers, automotive manufacturers and off-grid customers primarily in North America. Axion Power's PbC batteries feature an all-carbon negative electrode designed as a direct substitute for traditional lead-acid electrodes, enabling superior cycle life, rapid charge-discharge rates and performance in extreme temperatures without requiring significant changes to existing lead-acid production lines. The company filed for Chapter 7 bankruptcy liquidation in 2018 in the U.S. Bankruptcy Court for the Western District of Pennsylvania, citing unsuccessful efforts to sell its intellectual property, merge or form joint ventures including multi-year talks with China's Fengfan Co. that collapsed; it listed minimal assets against substantial liabilities, leading to the resignation of its board and cessation of operations, with its stock trading nominally on OTC Markets thereafter. No significant partnerships, funding, acquisitions or operational restarts have occurred since the bankruptcy.