LEAD-ACID BATTERY
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United States of America Patent
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Nov 6, 2014
app pub date -
Jan 23, 2013
filing date -
Jan 31, 2012
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Abstract
The lead-acid battery of the present invention includes electrode plate units, each including a positive electrode plate, negative electrode plate, and a separator. The positive electrode plate is a positive electrode grid filled with paste of lead suboxide powder. The negative electrode plate is a negative electrode grid filled with paste of lead suboxide powder and carbon black. The positive electrode plate faces the negative electrode plate. The separator is provided between the positive electrode plate and the negative electrode plate. The amount of DBP oil absorption of the carbon black is more than or equal to 140 ml/100 g and less than or equal to 340 ml/100 g. The negative electrode plates are joined together by a strap of a lead alloy substantially without antimony.
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