Chemistry: electrical current producing apparatus – product – and – Process of cell operation
Reexamination Certificate
2008-02-14
2011-11-29
Gilliam, Barbara (Department: 1727)
Chemistry: electrical current producing apparatus, product, and
Process of cell operation
C429S105000, C029S623100
Reexamination Certificate
active
08067108
ABSTRACT:
A hybrid battery comprising at least two nonaqueous electrochemical systems is described. The first cell comprises an anode of an alkaline earth metal or alloy thereof, and the second cell comprises an anode of an alkali metal or alloy thereof. The first cell is preferably an alkaline earth metal/oxyhalide cell, more preferably a calcium/oxyhalide cell or cells. The second cell is preferably an alkali metal alloy/oxyhalide cell, more preferably a lithium alloy/oxyhalide cell or cells. Such a cell combination is particularly useful for power a down-hole well tool. The down-hole tool is powered by the first cell during a surface test and as the tool descends into the well until all of the calcium is discharged. Then, the second cell powers the down-hole tool for the remainder of the down-hole procedure.
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Electrochem Solutions, Inc.
Gilliam Barbara
Rea Jennifer
Scalise Michael F.
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