METHOD FOR PREPARING COMPOSITE RESIN COMPOSITION BY USING SECONDARY BATTERY WASTE SEPARATORS

WIPO Patent Application WO/2022/103116

A1

The present invention relates to a method for preparing a composite resin composition by regenerating secondary battery waste separators of which one surface or both surfaces are coated with ceramic particles or aramids, and, more specifically, to a method for preparing a composite resin composition through: i) a pretreatment step of crushing secondary battery waste separators coated with ceramic particles and compression-crushing same into a smaller volume; ii) a step of mixing the pretreated waste separator material with a polyolefin-based material having excellent fluidity, other modifiers and additives, and melting, uniformly kneading and extruding same; and iii) a step of processing same into a pellet form. The present invention relates to an economical, efficient and eco-friendly process capable of preparing a variously usable novel composite resin composition from separator scraps coated with ceramic particles or aramids, which are generated during the manufacture of secondary batteries, and separators, which are inferior goods requiring disposal.

KANG CHANG-GEE (KR)
HA HYUN-SOO (KR)

PCT/KR2021/016226

May 19, 2022

November 09, 2021

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KANG CHANG GEE (KR)

B29B17/00; B09B3/00; B29B9/06; B29B11/10; B29B17/04; B29C48/00; B29C48/05; H01M50/449

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KR20090080785A	2009-07-27
KR101300652B1	2013-08-28
KR101441031B1	2014-09-17
KR102181876B1	2020-11-24
KR100739337B1	2007-07-12
KR100754746B1	2007-09-03
KR100858214B1	2008-09-10
KR20100028009A	2010-03-11
KR20110035847A	2011-04-06
KR20140048138A	2014-04-23

NOH, Kyong-kyu (KR)

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