C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/00 (2006.01) H01M 2/16 (2006.01) H01M 10/40 (2006.01)
Patent
CA 2213858
A polyethylene microporous film excellent in mechanical strength, permeability and productivity and having a very high reliability such that the safety of a battery may be secured even under severe circumstances which film has a crosslinked structure and has a porosity of 20 - 80%, a gel fraction of 1% or more, and an average pore diameter determined by the permeation method of 0.001 - 0.1 µm, and a process for producing the poly- ethylene microporous film.
Cette invention concerne un film de polyéthylène microporeux qui possède d'excellentes qualités de résistance mécanique et de perméabilité, et qui peut être produit à grande échelle. La fiabilité de ce film lui permet d'assurer la protection de batteries même dans des conditions difficiles. Ce film se caractérise par sa structure réticulée, une porosité variant entre 20 et 80 %, une fraction de gel supérieure ou égale à 1 % et un diamètre moyen des pores variant entre 0,001 et 0,1 mu m, tel que déterminé par le procédé de perméation.
Hasegawa Takuya
Kondo Takahiko
Asahi Kasei Kabushiki Kaisha
Asahi Kasei Kogyo Kabushiki Kaisha
Goudreau Gage Dubuc
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