KR102211368B1 - 가요성 이차 전지 - Google Patents
가요성 이차 전지 Download PDFInfo
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- KR102211368B1 KR102211368B1 KR1020140055747A KR20140055747A KR102211368B1 KR 102211368 B1 KR102211368 B1 KR 102211368B1 KR 1020140055747 A KR1020140055747 A KR 1020140055747A KR 20140055747 A KR20140055747 A KR 20140055747A KR 102211368 B1 KR102211368 B1 KR 102211368B1
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Abstract
Description
도 2는 제1 외장재의 단면을 개략적으로 도시한 도면이다.
도 3은 제1 외장재의 일 실시예를 개략적으로 도시한 도면이다.
도 4는 제1 외장재의 다른 실시예를 개략적으로 도시한 도면이다.
도 5는 제1 외장재의 다른 실시예를 개략적으로 도시한 도면이다.
도 6은 불규칙한 패턴부를 포함하는 가요성 이차 전지를 개략적으로 도시한 도면이다.
112: 제1전극탭 114: 제2전극탭
130: 제1 외장재 131: 제1 절연층
133: 금속층 1330: 제 1면
1332: 제 2면 135: 제2 절연층
150: 제2 외장재 170: 실링부
180: 중앙부 190: 패턴부
Claims (16)
- 전극조립체;
상기 전극조립체의 제1면 상의 제1 외장재;
상기 전극조립체의 제2면 상에 위치하고, 상기 제1 외장재와 함께 상기 전극조립체를 밀봉하는 제2 외장재;
상기 제1 외장재와 상기 제2 외장재의 가장자리가 접합된 실링부;를 포함하고,
상기 제1 외장재 및 상기 제2 외장재 중 적어도 어느 하나는 중앙부에 패턴부를 포함하며,
상기 제2 외장재는, 전극조립체를 수용하도록 오목한 수용공간을 제공하며, 상기 제1 외장재는, 상기 수용공간을 덮는 판상의 덮개로 형성되는 가요성 이차 전지로서,
상기 제1, 제2 외장재는, 상기 가요성 이차 전지의 길이 방향과 교차하는 방향을 따라 연장되는 접힘부를 통하여 서로 마주하게 결합되며,
상기 가요성 이차 전지가 길이 방향을 따라 만곡한 형상을 가질 때, 상기 제1 외장재는 오목하게 휘어지고, 상기 패턴부는 상기 제1 외장재의 중앙부에 형성되어 주름을 유도하며,
상기 제1 외장재는 외측의 제1 절연층, 내측의 제2 절연층, 제1, 제2 절연층 사이의 금속층을 포함하고,
상기 패턴부는 상기 금속층 중에서 상대적으로 외측의 제1 절연층에 가까운 금속층의 제1 면에 형성되는 가요성 이차 전지. - 제1항에 있어서,
상기 중앙부는 상기 실링부로부터 소정 거리 이격되어 있는 가요성 이차 전지. - 제2항에 있어서,
상기 가요성 이차 전지가 만곡한 형상을 가질 때, 상기 패턴부는 형상이 변화하는 가요성 이차 전지. - 제1항에 있어서,
상기 실링부는 평평하게 형성되는 가요성 이차 전지. - 삭제
- 제1항에 있어서,
상기 패턴부는 상기 가요성 이차 전지의 길이 방향과 수직한 방향으로 형성되는 패턴들을 포함하는 가요성 이차 전지. - 제6항에 있어서,
상기 제1 외장재 상기 제2 외장재 중 적어도 어느 하나는 상기 가요성 이차 전지의 길이 방향을 따른 상기 패턴부의 양측 중 적어도 어느 하나의 부분에 상기 패턴들이 더 포함된 가요성 이차 전지. - 제1항에 있어서,
상기 패턴부는 상기 가요성 이차 전지가 벤딩되는 z축 방향과 수직한 xy평면에 포함되는 가요성 이차 전지. - 제1항에 있어서,
상기 패턴부는 불규칙적인 형태로 형성된 가요성 이차 전지. - 전극조립체;
상기 전극조립체의 제1면 상의 제1 외장재;
상기 전극조립체의 제2면 상에 위치하고, 상기 제1 외장재와 함께 상기 전극조립체를 밀봉하는 제2 외장재;
상기 제1 외장재와 상기 제2 외장재의 가장자리가 접합된 실링부;를 포함하고,
상기 제1 외장재는 중앙부에 패턴부를 포함하며, 상기 실링부는 평평하게 형성되며,
상기 제2 외장재는, 전극조립체를 수용하도록 오목한 수용공간을 제공하며, 상기 제1 외장재는, 상기 수용공간을 덮는 판상의 덮개로 형성되는 가요성 이차 전지로서,
상기 제1, 제2 외장재는, 가요성 이차 전지의 길이 방향과 교차하는 방향으로 연장되는 접힘부를 통하여 서로 마주하게 결합되며,
상기 가요성 이차 전지가 길이 방향을 따라 만곡한 형상을 가질 때, 상기 제1 외장재는 오목하게 휘어지고, 상기 패턴부는 상기 제1 외장재의 중앙부에 형성되어 주름을 유도하며,
상기 제1 외장재는 외측의 제1 절연층, 내측의 제2 절연층, 제1, 제2 절연층 사이의 금속층을 포함하고,
상기 패턴부는 상기 금속층 중에서 상대적으로 외측의 제1 절연층에 가까운 금속층의 제1 면에 형성되는 가요성 이차 전지. - 제10항에 있어서,
상기 중앙부는 상기 실링부로부터 소정 거리 이격되어 있는 가요성 이차 전지. - 제10항에 있어서,
상기 가요성 이차 전지가 만곡한 형상을 가질 때, 상기 패턴부는 형상이 변화하는 가요성 이차 전지. - 제10항에 있어서,
상기 패턴부는 상기 가요성 이차 전지의 길이 방향과 수직한 방향으로 형성되는 패턴들을 포함하는 가요성 이차 전지. - 제13항에 있어서,
상기 제1 외장재는 상기 가요성 이차 전지의 길이 방향을 따른 상기 패턴부의 양측 중 적어도 어느 하나의 부분에 상기 패턴들이 더 포함된 가요성 이차 전지. - 제10항에 있어서,
상기 패턴부는 상기 가요성 이차 전지가 벤딩되는 z축 방향과 수직한 xy평면에 포함되는 가요성 이차 전지. - 제10항에 있어서,
상기 패턴은 불규칙적인 형태로 형성되는 가요성 이차 전지.
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