Electric separator comprising a shutdown mechanism, method...

Details Electric separator comprising a shutdown mechanism, method... Electric separator comprising a shutdown mechanism, method...

2004-08-19

2010-02-02

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Separator, retainer, spacer or materials for use therewith

C429S249000, C429S247000, C429S231950

Reexamination Certificate

active

07655360

ABSTRACT:
An electrical separator for a lithium battery is composed of a porous carrier coated with a porous inorganic nonelectroconductive material and a porous shutdown layer on the porous inorganic nonelectroconductive coating. The shutdown layer melts at a selected temperature defined by layer composition. Upon melting, the pores of the inorganic layer are closed. Such an electrical separator provides a lithium battery of improved safety. A method to produce the electrical separator is provided.

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