Method for Separating Individual Cathode-Active Materials from Li-Ion Batteries

Inventors

Lei Pan, Michigan Technological UniversityFollow
Tinuade Ololade Folayan
Jeffrey S. Spangenberger
Bryant J. Polzin

Files

Abstract

Method of separating individual cathode active materials from a mixture of cathode active materials by froth flotation has been developed. They are based on using appropriate chemical reagents that selectively hydrophobize individual cathode active materials to be recovered, so that they can be collected by air bubbles used in flotation and separated from other mixtures. The chemical reagents are amphiphilic molecules with specialized head groups have a strong affinity to metal elements on surfaces of cathode materials. This method enables a separation of individual cathode active material from a mixture of cathode active materials.

Patent Number

US 12,002,936

Assignee

UChicago Argonne, LLC

Assignee

Michigan Technological University

Application Number

16/985,028

Date Filed

8-4-2020

Certificate of Correction

No

Issue Date

6-4-2024

Disciplines

Chemical Engineering

Comments

For the most up-to-date information about this patent, including the availability of Certificates of Correction, be sure to check the United States Patent and Trademark Office's free, publicly accessible database: Patent Public Search https://ppubs.uspto.gov/pubwebapp/static/pages/landing.html

Recommended Citation

Pan, Lei; Folayan, Tinuade Ololade; Spangenberger, Jeffrey S.; and Polzin, Bryant J., "Method for Separating Individual Cathode-Active Materials from Li-Ion Batteries" (2024). Michigan Tech Patents. 163.
https://digitalcommons.mtu.edu/patents/163