NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Apr 4, 2013
app pub date -
Sep 6, 2012
filing date -
Sep 30, 2011
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Abandoned
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Abstract
In a non-aqueous electrolyte secondary battery, a positive electrode active material includes a carbon-coated lithium vanadium phosphate and a lithium nickel composite oxide. A negative electrode active material includes a carbon-based active material capable of intercalating and deintercalating lithium ions. When a first charge capacity of a negative electrode per unit area is “x” (mAh/cm2), and a first charge capacity of a positive electrode per unit area is “y” (mAh/cm2), a relation of “x” and “y” satisfies 0.6≦y/x≦0.92.
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