High temperature dischargeable galvanic primary element having alkaline electrolyte
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United States of America Patent
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Jan 30, 1990
Grant Date -
N/A
app pub date -
Mar 30, 1988
filing date -
May 2, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A primary element is provided which is dischargeable at high temperatures comprising an alkaline electrolyte in a metallic annular cylindrical housing which encloses in inwardly directed concentric order: an outer positive silver oxide or manganese dioxide electrode in the form of a pressed powder cylinder and an inner negative electrode comprising a concentrically wound cadmium electrode wherein said negative electrode is separated from said positive electrode by a separator interposed therebetween. In storage and testing it has been shown that cells produced in accordance with the present invention may be kept at temperatures of the order of 200.degree. C. for over six weeks without any loss of operability.
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