Metals recycling plant. Stock image. US battery recycler Aqua Metals (NASDAQ: AQMS), announced Wednesday it has entered into a term sheet to acquire energy storage systems provider Lion Energy LLC. On closing of the transaction, Aqua Metals said it plans to leverage Lion Energy’s brand, intellectual property, capital, technical talent and manufacturing capabilities to transform the company into a domestic player capable of managing the entire battery lifecycle, from manufacturing and deployment to intellige ...