NONAQUEOUS ELECTROLYTE SECONDARY BATTERY SEPARATOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY MEMBER AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

Provided is a separator for a non-aqueous electrolyte secondary battery with excellent heat resistance and battery performance, including: a porous substrate provided with a polyolefin porous film; and a mixed layer including a heat-resistant resin, wherein the weight ratio (W_1/W_0) of the weight W...

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Bibliographic Details
Main Authors SHIN AKIHIKO, MATSUMINE RIKU
Format Patent
LanguageEnglish
Korean
Published 12.09.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Provided is a separator for a non-aqueous electrolyte secondary battery with excellent heat resistance and battery performance, including: a porous substrate provided with a polyolefin porous film; and a mixed layer including a heat-resistant resin, wherein the weight ratio (W_1/W_0) of the weight W_1 of the heat-resistant resin and the weight W_0 of the porous substrate in the mixed layer is 0.07 or more. 내열성 및 전지 성능이 우수한 비수전해액 이차 전지용 세퍼레이터로서, 폴리올레핀 다공질 필름을 구비하는 다공질 기재 및 내열성 수지를 함유하는 혼합층을 포함하고, 상기 혼합층에서의 상기 내열성 수지의 중량 W1과, 상기 다공질 기재의 중량 W0의 중량 비율(W1/W0)이 0.07 이상인, 비수전해액 이차 전지용 세퍼레이터를 제공한다.
Bibliography:Application Number: KR20230028451