Nonaqueous secondary battery and method of using the same
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United States of America Patent
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Mar 20, 2012
Grant Date -
Sep 27, 2007
app pub date -
Mar 27, 2007
filing date -
Mar 27, 2006
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Abstract
A nonaqueous secondary battery containing a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode comprises, as active materials, three or more lithium-containing transition metal oxides having different average particle sizes, those transition metal oxides comprise a transition metal element, the transition metal element of the transition metal oxide having the smallest average particle size is partially substituted with a metal element other than the transition metal element, and the density of the positive electrode mixture layer is t 3.8 g/cm3 or more.
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