LEAD-ACID STORAGE BATTERY GRID AND LEAD-ACID STORAGE BATTERY
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United States of America Patent
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Issued Date -
Jun 25, 2015
app pub date -
Oct 8, 2013
filing date -
Dec 3, 2012
priority date (Note) -
Abandoned
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Abstract
A lead-acid battery grid used for an electrode of a lead-acid battery, wherein the lead-acid battery grid is made of a Pb alloy containing at least one of Sn or Ca, and includes an upper frame constituting an upper side of the lead-acid battery grid, a lower frame constituting a lower side of the lead-acid battery grid, and a meshed part being present between the upper frame and the lower frame and including intersecting strands, a ratio Wu/W of a mass Wu of an upper half of the meshed part to a total mass W of the meshed part is 62.5% or higher and 67% or lower, and a cover layer containing a larger amount of Sn than the strands is formed on at least part of a surface of the strands, and the cover layer is not formed on a surface of the lower frame.
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