The state-of-the-art recycling process focuses on a recovery of the predominant materials of a mixed material product, and the current WEEE directive for electronic waste already includes solar cell modules.However, recovery of Ag from solar cell has not been considered because of its small amount to the total weight of the module.Even so, the amount is not a negligible since the weight of Ag is estimated at 17.6g in each PV panel of 22kg at 200W.Furthermore, Ag is much more expensive than the other materials.