Lithium secondary battery
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United States of America Patent
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Aug 4, 2015
Grant Date -
Apr 25, 2013
app pub date -
Jun 27, 2012
filing date -
Oct 20, 2011
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Abstract
In one aspect, a lithium secondary battery that includes a positive electrode including a high-voltage positive active material; and a separator is provided. The high voltage positive active material can have a discharge plateau voltage of greater than or equal to about 4.6V with respect to a Li counter electrode, and the separator can include a porous substrate having a porosity of about 40% to about 60%.
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