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:
Dec. 04, 2001
Filed:
Oct. 14, 1999
Applicant:
Inventors:
Josip Caja, Knoxville, TN (US);
Thanthrimudalige D. J. Dunstan, Oak Ridge, TN (US);
Assignee:
Electrochemical Systems, Inc., Knoxville, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 6/04 ;
U.S. Cl.
CPC ...
H01M 6/04 ;
Abstract
An electrolyte, such as for a lithium rechargeable cell, is described which contains a pyrazolium cation and may also contain a lithium salt. The lithium salt may be at least one of LiBF,, LiAsF,, LiPF,, and LiTF. The electrolyte, when used in an electrochemical cell, has a charge/discharge capacity and charging efficiency that is superior to the same properties of ionic liquid electrolytes without a pyrazolium cation. Electrochemical cells are also described and contain an anode, a cathode, and the pyrazolium cation electrolyte.