LITHIUM ION SECONDARY BATTERY AND METHOD FOR PREPARING THE SAME
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United States of America Patent
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Issued Date -
Oct 3, 2013
app pub date -
Sep 5, 2012
filing date -
Apr 2, 2012
priority date (Note) -
Abandoned
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Abstract
A lithium ion secondary battery and a method for preparing the same are provided. The lithium ion secondary battery includes a positive electrode having a positive active material represented by Formula (1), a negative electrode and an electrolyte, wherein the positive active material is activated by performing a first charge operation with a voltage ranging from 4.5 V to 4.7 V and the voltage is then reduced to less than 4.5 V:
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