Battery separator for lithium polymer battery
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United States of America Patent
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Sep 14, 2010
Grant Date -
Jun 14, 2007
app pub date -
Feb 6, 2007
filing date -
May 28, 2003
priority date (Note) -
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Abstract
A battery separator for a lithium battery is disclosed. The separator has a microporous membrane and a coating thereon. The coating is made from a mixture of a gel forming polymer, a first solvent, and a second solvent. The first solvent is more volatile than the second solvent. The second solvent acts as a pore former for the gel-forming polymer.
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