ACTIVE MATERIAL, METHOD OF MANUFACTURING THE SAME, ELECTRODE, SECONDARY BATTERY, BATTERY PACK, ELECTRIC VEHICLE, ELECTRIC POWER STORAGE SYSTEM, ELECTRIC POWER TOOL, AND ELECTRONIC DEVICE
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United States of America Patent
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Jan 31, 2013
app pub date -
Jul 25, 2012
filing date -
Jul 28, 2011
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Abstract
A secondary battery includes: a cathode including an active material; an anode; and an electrolytic solution. The active material has a composition represented by Formula (1) described below. A median diameter (D90) of the active material is from about 10.5 micrometers to about 60 micrometers both inclusive, the median diameter (D90) being measured by a laser diffraction method. A half bandwidth (2θ) of a diffraction peak corresponding to a (020) crystal plane of the active material is from about 0.15 degrees to about 0.24 degrees both inclusive, the half bandwidth (2θ) being measured by an X-ray diffraction method.
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