Hybrid battery for use over extended temperature range

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/ox...

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Bibliographische Detailangaben
1. Verfasser:	JOHNSON ARDEN P
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Beschreibung
Zusammenfassung:	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.