公开(公告)号：EP4396134A1

公开(公告)日：2024-07-10

申请号：EP22865595.7

申请日：2022-09-02

Applicant: Worcester Polytechnic Institute

Inventor： WANG, Yan ,  MA, Xiaotu

IPC: C01G53/00 ,  H01M4/525 ,  H01M4/505 ,  H01M10/54

CPC classification number: Y02W30/84 ,  H01M4/525 ,  H01M10/54 ,  C01G53/50 ,  C01P2002/7220130101 ,  C01P2002/7420130101 ,  H01M2004/02820130101

公开(公告)号：EP4157796A2

公开(公告)日：2023-04-05

申请号：EP21813618.2

申请日：2021-05-26

Applicant: Worcester Polytechnic Institute

Inventor： WANG, Yan ,  MA, Xiaotu ,  GRATZ, Eric ,  FU, Jinzhao ,  VANAPHUTI, Panawan

IPC: C01D15/00 ,  C30B1/02 ,  H01M10/052 ,  H01M10/54 ,  B22F8/00 ,  C30B29/16

公开(公告)号：EP4150697A1

公开(公告)日：2023-03-22

申请号：EP22788773.4

申请日：2022-04-12

Applicant: Worcester Polytechnic Institute

Inventor： WANG, Yan ,  HOU, Jiahui ,  MA, Xiaotu ,  FU, Jinzhao

IPC: H01M10/54 ,  C01D15/08 ,  C22B26/12 ,  C22B3/16

公开(公告)号：EP3381080A1

公开(公告)日：2018-10-03

申请号：EP16869162.4

申请日：2016-11-22

Applicant: Worcester Polytechnic Institute

Inventor： WANG, Yan ,  GRATZ, Eric ,  SA, Qina ,  ZHENG, Zhangfeng ,  HEELAN, Joseph

IPC: H01M10/54 ,  B09B3/00

CPC classification number: H01M10/54 ,  B09B3/00 ,  C01G53/006 ,  C01G53/42 ,  C01G53/50 ,  C22B7/006 ,  H01M4/525 ,  Y02P10/234 ,  Y02W30/84

Abstract: Cathode material from exhausted lithium ion batteries are dissolved in a solution for extracting the useful elements Co (cobalt), Ni (nickel), Al (Aluminum) and Mn (manganese) to produce active cathode materials for new batteries. The solution includes compounds of desirable materials such as cobalt, nickel, aluminum and manganese dissolved as compounds from the exhausted cathode material of spent cells. Depending on a desired proportion, or ratio, of the desired materials, raw materials are added to the solution to achieve the desired ratio of the commingled compounds for the recycled cathode material for new cells. The desired materials precipitate out of solution without extensive heating or separation of the desired materials into individual compounds or elements. The resulting active cathode material has the predetermined ratio for use in new cells, and avoids high heat typically required to separate the useful elements because the desired materials remain commingled in solution.