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:
Sep. 08, 2009
Filed:
Feb. 05, 2007
Richard L. Wang, Halifax, CA;
Claudia Buhrmester, Darmstadt, DE;
William M. Lamanna, Stillwater, MN (US);
Jeffrey R. Dahn, Upper Tantallon, CA;
Lee Moshurchak, Halifax, CA;
Richard L. Wang, Halifax, CA;
Claudia Buhrmester, Darmstadt, DE;
William M. Lamanna, Stillwater, MN (US);
Jeffrey R. Dahn, Upper Tantallon, CA;
Lee Moshurchak, Halifax, CA;
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
Provided is a rechargeable lithium-ion cell that contains a positive electrode, a negative electrode, a charge-carrying electrolyte containing a charge carrying medium and a lithium salt, and a triphenylamine compound dissolved in or dissolvable in the electrolyte. The triphenylamine compound has an oxidation potential above the positive electrode recharged potential and serves as a cyclable redox chemical shuttle providing cell overcharge protection. Also provided are methods for manufacturing a rechargeable lithium-ion cell.