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:
Jul. 03, 2012
Filed:
Jun. 09, 2009
Zhiping Jiang, Westford, MA (US);
Rimma Sirotina, Ashland, MA (US);
Nikolay Iltchev, Norfolk, MA (US);
Zhiping Jiang, Westford, MA (US);
Rimma Sirotina, Ashland, MA (US);
Nikolay Iltchev, Norfolk, MA (US);
The Gillette Company, Boston, MA (US);
Abstract
An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS) as cathode active material. The improved electrolyte comprises a magnesium salt, preferably magnesium perchlorate dissolved in an organic solvent which preferably includes acetonitrile or mixture of tetrahydrofuran and propylene carbonate. The electrolyte includes an additive to retard the buildup of deleterious passivation coating on the magnesium anode surface, thereby enhancing cell performance. Such additive may preferably include 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF), lithium hexafluorophosphate (LiPF), or aluminum chloride (AlCl).