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. 01, 2009
Filed:
Apr. 08, 2004
Applicants:
Thanthrimudalige D. J. Dunstan, Oak Ridge, TN (US);
Josip Caja, Knoxville, TN (US);
Inventors:
Thanthrimudalige D. J. Dunstan, Oak Ridge, TN (US);
Josip Caja, Knoxville, TN (US);
Assignee:
Electrochemical Systems, Inc., Knoxville, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lithium-ion rechargeable cell is described which contains an electrolyte comprising a pyrazolium cation, an imidazolium cation, or a combination thereof, as well as lithium ion, and at least one non-Lewis acid derived counter-ion. Electrochemical cells containing an anode, a cathode, and the ionic liquid electrolytes preferably have effective charge/discharge capacity and charging efficiency at low temperatures and at high temperatures.