Nonaqueous secondary battery and electronic device
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United States of America Patent
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Aug 5, 2014
Grant Date -
Mar 3, 2011
app pub date -
Apr 30, 2009
filing date -
May 7, 2008
priority date (Note) -
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Abstract
In the nonaqueous secondary battery of the present invention, a positive electrode mixture layer included in a positive electrode contains a lithium-containing complex oxide defined by the general formula LixM1yM2zM3vO2 (where, M1 represents at least one transition metal element selected from the group consisting of Co, Ni and Mn, M2 represents at least one metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, M3 represents an element other than Li, M1 and M2, 0.97≦x<1.02, 0.8≦y<1.02, 0.002≦z≦0.05, and 0≦v≦0.05) and has a density of 3.5 g/cm3 or more. A nonaqueous electrolyte contains a fluorinated nitrile compound including two or more cyano groups or a cyano group and an ester group.
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