Lead-acid battery with tubular plate electrode
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United States of America Patent
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-
Jun 30, 1981
Grant Date -
N/A
app pub date -
May 25, 1979
filing date -
Sep 1, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tubular plate for electrical lead acid accumulators comprises tubes formed of porous fibrous material having a shape such that the ratio of volume to surface area of active material is no greater than 0.20 times the thickness of the tube taken in a direction between the sides of the plate which face the negative electrodes. At least one side of each tube has a concave surface. The tubes are formed with integral rigid flanges formed by weld joints between the tubes. The flanges support the tubes and aid in shaping of the tubes.
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