Process of manufacturing porous separator for electrochemical po

Details Process of manufacturing porous separator for electrochemical po Process of manufacturing porous separator for electrochemical po

1997-05-01

1999-03-16

Gorgus, Kathryn

Coating processes

Electrical product produced

Electron emissive or suppressive

429194, 429248, 429251, 429252, B05D 512, H01M 614, H01M 216

Patent

active

058827218

ABSTRACT:
A method of forming a porous composite separator layer for an electrochemical cell comprising the steps of printing a thin layer of a separator precursor solution on the surface of one of the electrochemical cell electrodes, curing the thin layer of separator precursor solution so that it transforms into a microporous composite separator structure. In the preferred embodiment, the separator precursor solution is formulated as an ink comprising a silica aerogel filler material dispersed in a solution of polymer binder which is dissolved in a suitable solvent. The process allows the manufacture of thin and flexible composite separators which are conformally bonded to the underlying electrodes.

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