ELECTRODE PLATE, LAYERED ELECTRODE GROUP, AND BATTERY
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United States of America Patent
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Issued Date -
Jul 10, 2014
app pub date -
Jul 20, 2012
filing date -
Aug 2, 2011
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Abandoned
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Abstract
A layered electrode group according to the present invention includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other. The negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other. The positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at the positive electrode plate is sandwiched between two active material retaining portions at the negative electrode plate.
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