Long life and low corrosion lead storage battery with a separator including silica and oil
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United States of America Patent
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Jun 12, 2012
Grant Date -
Oct 2, 2008
app pub date -
Apr 1, 2005
filing date -
Apr 2, 2004
priority date (Note) -
Expired
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Abstract
A lead storage battery of the present invention has an electrode plate pack comprising a plurality of negative electrode plates in each of which a negative electrode active material layer is retained by a negative electrode grid, a plurality of positive electrode plates in each of which a positive electrode active material layer is retained by a positive electrode grid, and a plurality of separators separating the positive electrode plate and the negative electrode plate; a positive electrode connecting member connected to each positive electrode plate of the electrode plate pack, and a negative electrode connecting member connected to each negative electrode plate of the electrode plate pack. The positive and negative electrode grids, and the positive and negative electrode connecting members comprise a Pb alloy including at least one of Ca and Sn; the negative electrode active material layer includes Sb; and the separator includes silica.
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