REINFORCED BATTERY SEPARATOR AND METHODS OF USE THEREFOR
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United States of America Patent
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Apr 9, 2015
app pub date -
Oct 8, 2013
filing date -
Oct 8, 2013
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According to one embodiment, a separator for a lead-acid battery includes a membrane film of an ultra-high molecular weight polymer material (UHMWPE). Precipitated silica and glass fibers are disposed throughout the membrane film and held or maintained in position by the UHMWPE. The separator may have a thickness of between 1 and 50 mils and include between 10% and 30% by weight of the UHMWPE, between 40% and 80% by weight of the precipitated silica, between 5% and 25% by weight of processing oils, and between 1% and 30% by weight of the glass fibers.
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