Method for reusing active material using positive electrode scrap

This invention describes a method to recycle valuable materials from used battery parts. It works by first soaking the used positive electrode in a basic liquid to separate the active material from its metal backing. This material is then heated to burn off unwanted components like binders, followed by washing it with a basic lithium solution. Finally, it's baked with a lithium compound to restore it, making it ready for reuse in new batteries. The claims specifically mention using LiOH or NaOH for the initial soaking step.