公开(公告)号：US20250007021A1

公开(公告)日：2025-01-02

申请号：US18215191

申请日：2023-06-28

Applicant: Microvast, Inc. ,  Virginia Polytechnic Institute and State University

Inventor： Jinsuo ZHANG ,  Mingyang ZHANG ,  Yun XU ,  Bryan Yonemoto ,  Wenjuan Liu Mattis

IPC: H01M10/54 ,  C22B1/00 ,  C22B3/26 ,  C22B26/12 ,  C22B26/20

Abstract: The main purpose of the invention is to provide a method for recovery of cathode materials, cathode materials and electric vehicles. The method for recovery of cathode materials comprises the following steps: step 1, adding cathode materials and a metal reducing agent (MRA) to a molten salt (MS), the cathode materials and the MRA performing a reduction reaction in MS to obtain precipitates and MS solutions. By using the method for recovery of cathode materials of the present invention, main metal elements in cathode materials of a secondary battery are effectively recovered, and compared with pyrometallurgical or hydrometallurgical methods in the prior art, the recovery rate of a metal mixture can reach unexpected 90% or more. Furthermore, the method of the present invention is environmentally friendly, all raw materials can be recycled and reused and no exhaust gases or waste liquids contaminating the environment are discharged.