Polyethylene separator for energy storage cell
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United States of America Patent
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Jun 5, 2001
Grant Date -
N/A
app pub date -
Aug 6, 1999
filing date -
Aug 6, 1999
priority date (Note) -
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Abstract
An improved separator for an energy storage cell is described which is made of a porous polyolefin matrix and contains from about 0.5 to about 30 dry weight percent particulate filler. The particulate filler is a cured, porous rubber material which enhances the electrochemical properties of the separator as compared to conventional polyolefin separators.
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