Lithium ion battery
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United States of America Patent
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May 5, 2015
Grant Date -
Jul 18, 2013
app pub date -
Jan 12, 2012
filing date -
Jan 12, 2011
priority date (Note) -
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Abstract
A lithium ion battery includes a positive electrode, a negative electrode, a microporous polymer separator disposed between the negative electrode and the positive electrode, and a polymer having a chelating agent tethered thereto. The polymer is incorporated into the lithium ion battery such that the chelating agent complexes with metal cations in a manner sufficient to not affect movement of lithium ions across the microporous polymer separator during operation of the lithium ion battery.
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