Method for recovering valuable materials from lithium ion secondary battery
AssigneeDowa Eco-System Co., Ltd.
InventorsChihiro NISHIKAWA, Yoshihiro HONMA, Ryoei WATANABE, Masataka YAMASHITA
Life of this patent
Estimating the term…
Abstract
A method for recovering a valuable substance from a lithium ion secondary battery is provided. The method includes a thermal treatment step of thermally treating a lithium ion secondary battery containing aluminum, carbon, and a copper foil as constituting materials, and a wet sorting step of applying an external force to a thermally treated product obtained in the thermal treatment step in the presence of a liquid, to sort the thermally treated product into a heavy product and a light product containing copper.
Claims13
A method for recovering a valuable substance from a lithium ion secondary battery, the method comprising:
- thermally treating a lithium ion secondary battery containing aluminum, carbon, and a copper foil as constituting materials;
- and
- performing wet sorting of applying an external force to a thermally treated product obtained in the thermally treating in the presence of a liquid, to sort the thermally treated product into a heavy product and a light product containing copper.
Dependencies are inferred from the claim text.