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. 25, 2012
Filed:
Feb. 14, 2008
Michael Pozin, Brookfield, CT (US);
Michael Sliger, New Milford, CT (US);
Nikolai N. Issaev, Woodbridge, CT (US);
Michael Pozin, Brookfield, CT (US);
Michael Sliger, New Milford, CT (US);
Nikolai N. Issaev, Woodbridge, CT (US);
The Gillette Company, Boston, MA (US);
Abstract
A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS) and carbon particles. The electrolyte comprises a lithium salt preferably lithium iodide (LiI) dissolved in an organic solvent mixture. The solvent mixture preferably comprises dioxolane, dimethoxyethane and sulfolane. The electrolyte typically contains between about 100 and 2000 parts by weight water per million parts by weight (ppm) electrolyte therein. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.