Processing of spent Li/MnO2 batteries to obtain Li2CO3

A laboratory process based on a simple and environmentally friendly operation, aimed to recycle spent Li/MnO2, batteries, is described in this study. This process involves roasting batteries under reduced pressure at 650 degrees C, selective leaching of Li2CO3 from calcined electrode material in distilled water at ambient temperature and controlled crystallization of pure Li2CO3 from the aqueous solution. (C) 2006 Elsevier B.V. All rights reserved.