Electrode grid for lead storage batteries
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United States of America Patent
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Apr 3, 2001
Issued Date -
N/A
app pub date -
Apr 23, 1999
filing date -
May 23, 1998
priority date (Note) -
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Abstract
Electrode grids for lead storage batteries comprise a lead alloy which, in addition to calcium and tin and, if appropriate, silver, contains of aluminum, the aluminum content being in the range of approximately 0.012% to 0.02% by weight, and the average grain diameter in the web and frame area of the grids is 200 .mu.m-600 .mu.m. Preferably, the aluminum content is in the range of approximately 0.014% to 0.02%, the calcium content is approximately between 0.04 and 0.06%, the tin content is approximately between 0.5 to 1.0%, and optionally 0.5 to 0.7%, and the silver content is approximately between 0.005 and 0.06%.
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