Vapor transmission resistant seal members for nonaqueous electrochemical cells
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United States of America Patent
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Mar 19, 2013
Grant Date -
Sep 30, 2010
app pub date -
Jun 26, 2008
filing date -
Jun 29, 2007
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A seal member having a thermoplastic body for an electrochemical cell containing a nonaqueous organic solvent electrolyte. In particular, the seal member is preferably one or more of (a) a seal located between a cell container wall and a cell cover and (b) a seal of a vent assembly, more particularly a ball vent assembly. The seal member has a composite construction including one or more vapor transmission barrier layers disposed on a portion of the thermoplastic body.
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