ELECTRIC STORAGE DEVICE AND POSITIVE ELECTRODE
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United States of America Patent
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Nov 22, 2012
app pub date -
May 18, 2012
filing date -
May 18, 2011
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Abstract
An electric storage device is provided with a positive electrode having a positive-electrode mixture layer including a positive-electrode active material. The positive-electrode active material includes a lithium-vanadium-phosphate from 8% to 70% by mass and a lithium-nickel complex oxide from 20% to 82% by mass. A coating concentration of the positive-electrode mixture layer is from 4 mg/cm2 to 20 mg/cm2. The lithium-nickel complex oxide includes a nickel element from 0.3 mol to 0.8 mol with respect to a lithium element of 1 mol.
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