Pouch film for secondary battery and Secondary battery comprising the same

The present invention relates to a pouch film for a secondary battery including; an inner layer including a non-porous membrane; and an outer layer formed on the inner layer, wherein the outer layer includes a polymer resin and a metal layer having a mesh structure. According to the present inventio...

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Bibliographic Details
Main Author KO TAE KON
Format Patent
LanguageEnglish
Korean
Published 21.03.2023
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present invention relates to a pouch film for a secondary battery including; an inner layer including a non-porous membrane; and an outer layer formed on the inner layer, wherein the outer layer includes a polymer resin and a metal layer having a mesh structure. According to the present invention, gas generated inside a secondary battery is continuously discharged to the outside, thereby preventing swelling of secondary battery cells and improving the stability of the secondary battery. 본 발명은 비다공성 멤브레인을 포함하는 내부층; 및 상기 내부층 상에 형성되는 외부층;을 포함하고, 상기 외부층은 고분자 수지 및 메쉬 구조의 금속층을 포함하는 이차전지용 파우치 필름에 관한 것이다. 본 발명에 따르면, 이차전지 내부에서 발생되는 가스가 지속적으로 외부로 배출되므로, 이차전지셀의 스웰링(swelling) 현상을 방지하고, 이차전지의 안정성을 향상시킬 수 있다.
Bibliography:Application Number: KR20210122149