MULTILAYER BATTERY SEPARATOR MADE BY COEXTRUSION Russian patent published in 2011 - IPC H01M4/58

Abstract RU 2433510 C2

FIELD: electricity.

SUBSTANCE: according to the invention, a battery separator comprises a microporous membrane made by coextrusion, consisting of at least two layers made of extrudable polymers, and having a uniform thickness with a root-mean-square deviation <0.80 micron (mcm) or layer adhesion determined by peel strength.

EFFECT: creation of the multilayer separator exhibiting homogeneous physical properties.

9 cl, 3 tbl

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RU 2 433 510 C2

Authors

Koll Ronal'D V.

Fulk Uill'Jam S. Ml.

Shi Li

Chzhan Sjaomin

Ngujen Kaj V.

Dates

2011-11-10—Published

2007-10-23—Filed