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:
Aug. 14, 2018
Filed:
Jun. 19, 2016
GM Global Technology Operations Llc, Detroit, MI (US);
Bar-ilan University, Ramat Gan, IL;
Shalom Luski, Rehovot, IL;
Doron Aurbach, Bnei Brak, IL;
Bob R. Powell, Jr., Birmingham, MI (US);
Ion C. Halalay, Grosse Pointe Park, MI (US);
Timothy J. Fuller, Pittsford, NY (US);
Anjan Banerjee, West Bengal State, IN;
Baruch Ziv, Ramat-Gan, IL;
Yuliya Shilina, Bat Yam, IL;
GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US);
BAR-ILAN UNIVERSITY, Ramat Gan, IL;
Abstract
A lithium ion battery includes a positive and a negative electrode, and a nanoporous or microporous polymer separator soaked in electrolyte solution and disposed between the electrodes. At least two different chelating agents are included and selected to complex with: i) two or more different transition metal ions; ii) a transition metal ion in two or more different oxidation states; or iii) both i) and ii). The at least two different selected chelating agents are to complex with transition metal ions in a manner sufficient to not affect movement of lithium ions across the separator during operation of the battery. The chelating agents are: dissolved or dispersed in the electrolyte solution; grafted onto the polymer of the separator; attached to the binder material of the negative and/or positive electrode; disposed within pores of the separator; coated on a surface of the separator; and/or coated on a surface of an electrode.