KR101254069B1 - 전극조립체의 마감테이프용 폴리스티렌 점착필름의 제조방법 - Google Patents
전극조립체의 마감테이프용 폴리스티렌 점착필름의 제조방법 Download PDFInfo
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- KR101254069B1 KR101254069B1 KR1020100107833A KR20100107833A KR101254069B1 KR 101254069 B1 KR101254069 B1 KR 101254069B1 KR 1020100107833 A KR1020100107833 A KR 1020100107833A KR 20100107833 A KR20100107833 A KR 20100107833A KR 101254069 B1 KR101254069 B1 KR 101254069B1
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- electrode assembly
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- polystyrene
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Adhesive Tapes (AREA)
Abstract
본 발명에 따른 방법으로 제조된 폴리스티렌 점착필름은 이차전지의 전극조립체에 부착되고 충ㆍ방전 과정에서 전해액에 용해되어 전극조립체와 전극조립체를 수납하는 케이스 사이의 간극을 메워주므로, 전극조립체를 외부충격으로부터 보호하고 충ㆍ방전 과정에서 발생되는 열을 분산시켜 이차전지의 성능저하를 방지하는 효과가 있으며, 또한 용해된 점착필름이 전해액의 방전용량에 미치는 영향을 최소화하므로 초기방전용량이 오래 유지되어 이차전지의 수명이 늘어나는 효과가 있다.
Description
단위 | 실시예 1 | 실시예 2 | 비교예 1 | 비교예 2 | 비교예 3 | 측정방법 | |
인장강도 | N/㎠ | 3120 | 3110 | 3130 | 2980 | 3120 | KS M 3503 |
인열강도 | N/㎝ | 960 | 950 | 1050 | 960 | 960 | KS M 3503 |
신장률 | % | 5 | 4 | 3 | 5 | 5 | KS M 3503 |
수축률 | % | 9 | 9 | 7 | 12 | 11 | 100℃ 30초 |
점착력 | Gf/25㎜ | 420 | 400 | 420 | 420 | 380 | KS A 1107 |
단위 | 실시예 1 | 실시예 2 | 비교예 1 | 비교예 2 | 비교예 3 | |
초기방전용량 | ㎃h | 1630 | 1630 | 1640 | 1630 | 1620 |
50사이클 후 방전용량 |
㎃h | 1490 | 1470 | 1380 | 1430 | 1420 |
용량 저하율 | % | 8.6 | 9.8 | 15.9 | 12.3 | 12.3 |
Claims (7)
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
- 중량평균분자량이 20000~30000인 폴리스티렌 100중량부에, 스티렌 함량이 50~60중량%이고 부타디엔 함량이 40~50중량%인 스티렌-부타디엔-스티렌 블록 공중합체 50~200중량부를 혼합하여 혼합물을 제조하는 단계;
상기 혼합물을 150~170℃의 온도로 용융하고 35~45㎛의 두께로 성형하여 기재필름을 제조하는 단계;
2-에틸헥실아크릴레이트 또는 n-부틸아크릴레이트에 가교점으로 작용하는 메틸아크릴레이트 또는 메틸메타크릴레이트를 첨가하고 공중합하여 아크릴계 점착제를 제조하는 단계;
베이스필름층 상에 이형제층 및 상기 아크릴계 점착제로 이루어진 5~10㎛ 두께의 점착층이 순차적으로 도포된 전사필름을 준비하는 단계; 및
상기 전사필름의 점착층이 상기 기재필름과 접촉되도록 한 후 80∼150℃의 온도로 가열ㆍ가압하여 점착층이 기재필름에 전사되도록 하는 단계;를 포함하는, 전극조립체의 마감테이프용 폴리스티렌 점착필름의 제조방법. - 청구항 6에 있어서,
상기 기재필름의 성형은 버블 블로우잉 방법으로 이루어지는 것을 특징으로 하는 전극조립체의 마감테이프용 폴리스티렌 점착필름의 제조방법.
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KR20120045937A KR20120045937A (ko) | 2012-05-09 |
KR101254069B1 true KR101254069B1 (ko) | 2013-04-12 |
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10298506A (ja) | 1997-04-23 | 1998-11-10 | Beiersdorf Ag | 多層接着テープ |
JP2006111646A (ja) * | 2004-10-12 | 2006-04-27 | Denki Kagaku Kogyo Kk | フィルム基材及び粘着テープ |
JP2009292868A (ja) | 2008-06-02 | 2009-12-17 | Three M Innovative Properties Co | 粘着剤組成物及び粘着テープ |
KR20100099064A (ko) * | 2009-03-02 | 2010-09-10 | 닛토덴코 가부시키가이샤 | 배터리용 감압성 접착 테이프 및 배터리용 감압성 접착 테이프를 사용하는 배터리 |
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- 2010-11-01 KR KR1020100107833A patent/KR101254069B1/ko active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH10298506A (ja) | 1997-04-23 | 1998-11-10 | Beiersdorf Ag | 多層接着テープ |
JP2006111646A (ja) * | 2004-10-12 | 2006-04-27 | Denki Kagaku Kogyo Kk | フィルム基材及び粘着テープ |
JP2009292868A (ja) | 2008-06-02 | 2009-12-17 | Three M Innovative Properties Co | 粘着剤組成物及び粘着テープ |
KR20100099064A (ko) * | 2009-03-02 | 2010-09-10 | 닛토덴코 가부시키가이샤 | 배터리용 감압성 접착 테이프 및 배터리용 감압성 접착 테이프를 사용하는 배터리 |
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