Separator for battery having a function of avoiding dangers caused by overheat, and method for producing the same
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United States of America Patent
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-
Oct 2, 2001
Grant Date -
N/A
app pub date -
Mar 29, 1999
filing date -
Mar 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
To provide a separator for a battery with high safety and a method for producing the same in which the separator has a shutdown function and capability of preventing meltdown, complete melting and cracks when the battery performs unusually. This separator comprises a porous ceramic sheet having ceramic fibers bonded to each other at their intersection points and polyolefin and comprises micropores for impregnation of an electrolyte.
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