Title:
METHOD FOR RECYCLING LITHIUM-ION BATTERY
Document Type and Number:
Japanese Patent JP2021073375
Kind Code:
A
Abstract:
To provide a method for recycling lithium-ion batteries.SOLUTION: A method for recycling lithium-ion batteries, comprising the steps of: a) discharging the lithium-ion batteries; b) chopping the lithium-ion batteries into pieces to provide a mixture of a structural part, a first conductive metal part coated with a cathode layer, and a second conductive metal part coated with an anode layer; c) immersing the pieces of the chopped lithium-ion batteries into a polar solvent to form a heterogeneous mixture; d) processing the heterogeneous mixture with a mixer by mechanical agitation for a time period from about 5 minutes to about 5 hours to dissolve a binder material in the cathode layer and the anode layer; e) screening the processed heterogeneous mixture to separate the structural part, first conductive metal part, and second conductive metal part from finer electrode materials comprising cathode and anode materials to provide a suspension comprising the polar solvent and the finer electrode materials; and f) isolating the finer electrode materials in the suspension from the polar solvent.SELECTED DRAWING: Figure 1
Inventors:
HO KAM PIU
WANG RANSHI
SHEN PEIHUA
WANG RANSHI
SHEN PEIHUA
Application Number:
JP2021006935A
Publication Date:
May 13, 2021
Filing Date:
January 20, 2021
Export Citation:
Assignee:
GRST INT LTD
International Classes:
C22B7/00; B09B5/00; C22B1/00; C22B9/02; C22B11/00; C22B15/00; C22B21/00; C22B23/00; C22B26/12; H01M10/54
Attorney, Agent or Firm:
Suzue International Patent Office