Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Reexamination Certificate
2009-09-11
2011-11-22
Kalafut, Stephen J. (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
C429S221000, C429S341000
Reexamination Certificate
active
08062788
ABSTRACT:
A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture which contains an additive, preferably iodine, suppressing voltage delay. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and 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.
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PCT International Search Report with Written Opinion in corresponding Int'l appln. PCT/IB2007/052546 dated Dec. 18, 2007.
Issaev Nikolai N.
Pozin Michael
Stevanovic Maya
Kalafut Stephen J.
The Gillette Company
Vitenberg Vladimir
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