COMPOSITE CURRENT COLLECTOR AND METHODS THEREFOR
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United States of America Patent
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Issued Date -
Jul 19, 2012
app pub date -
May 18, 2010
filing date -
May 19, 2009
priority date (Note) -
Abandoned
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Abstract
Contemplated bipolar lead acid batteries include a bipole assembly with a monolithic or composite current collector that is in contact with the PAM. Especially preferred current collectors have a substrate formed from pure lead and grid formed from a lead alloy, wherein the interface between the grid and substrate is formed via electroforming and/or resistance welding. Particularly preferred batteries are configured as deep cycle batteries and have a low ratio between the surface area of the grid and the weight of the PAM.
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