The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2018
Filed:
Jun. 19, 2012
Sarah L. Poe, Wilmington, MA (US);
Christopher L. Paradise, Wilmington, MA (US);
Laura R. Muollo, Wilmington, MA (US);
Reshma Pal, Wilmington, MA (US);
John C. Warner, Wilmington, MA (US);
Michael B. Korzenski, Bethel, CT (US);
Sarah L. Poe, Wilmington, MA (US);
Christopher L. Paradise, Wilmington, MA (US);
Laura R. Muollo, Wilmington, MA (US);
Reshma Pal, Wilmington, MA (US);
John C. Warner, Wilmington, MA (US);
Michael B. Korzenski, Bethel, CT (US);
Warner Babcock Institute for Green Chemistry, LLC, Wilmington, MA (US);
Abstract
A method of recovering lithium cobalt oxide from spent lithium ion batteries, wherein said method is more environmentally friendly than the methods presently known in the art. The method includes a froth flotation step using renewable and biodegradable solvents such as terpenes and formally hydrated terpenes. The method can also include a relithiation step to return the Li:Co ratio back to about 1:1 for use in second-life applications.