Expanders for lead-acid batteries
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United States of America Patent
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Jan 28, 2014
Grant Date -
Dec 31, 2009
app pub date -
Sep 2, 2008
filing date -
Jun 6, 2007
priority date (Note) -
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Abstract
An expander formulation used in battery paste compositions. The expander formulation incorporates effective amounts, or elevated concentrations of up to 6% of graphite and mixtures of carbon black and graphite to lessen or minimize the accumulation of lead sulfate on the surface of the negative plate during high rate PSOC battery operation, and/or to increase the electrochemical efficiency, the reserve capacity, the cold cranking performance and the cycle life of lead-acid batteries.
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