KR20200055680A - 파우치 케이스 및 이를 포함하는 파우치형 이차 전지의 제조 방법 - Google Patents
파우치 케이스 및 이를 포함하는 파우치형 이차 전지의 제조 방법 Download PDFInfo
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Abstract
Description
도 2는 도 1의 A 및 B 부분을 확대하여 나타낸 단면도이다.
도 3은 본 발명의 일 실시예에 따른 파우치형 이차 전지의 제조 방법을 나타낸 순서도이다.
도 4a 및 도 4b는 가압부에 의한 가압 공정을 나타내는 도면이다.
| 실시예 1 | 실시예 2 | 실시예 3 | 비교예 1 | 비교예 2 | |
| 평균값(kg/mm) | 4.74 | 5.15 | 6.04 | 4.60 | 3.62 |
| 최솟값(kg/mm) | 4.3 | 3.94 | 5.02 | 3.39 | 3.13 |
| 최댓값(kg/mm) | 5.21 | 6.74 | 7.84 | 6.48 | 3.96 |
| 비교예 1 | 실시예 1 | 실시예 2 | 실시예 3 | 비교예 2 |
| 100% | 103% | 112% | 131% | 79% |
110: 상부 케이스
120: 하부 케이스
113: 제1 실링층
123: 제2 실링층
310, 320: 홈부
Claims (19)
- 상부 케이스와 하부 케이스를 포함하고,
상기 상부 케이스 및 상기 하부 케이스의 테두리부 각각은 순차적으로 적층된 기재층, 금속층 및 실링층을 포함하며,
상기 상부 케이스 및 상기 하부 케이스 중 적어도 하나의 상기 실링층은 상기 실링층의 일면으로부터 함몰된 복수의 홈부를 포함하는 파우치 케이스. - 제1항에서,
상기 홈부의 깊이는, 상기 실링층 두께의 6% 내지 34%인 파우치 케이스. - 제1항에서,
상기 홈부의 폭은, 0.1mm 내지 1.0mm인 파우치 케이스. - 제1항에서,
상기 홈부는, 격자 형상으로 형성되어 있는 파우치 케이스. - 제4항에서,
상기 격자 형상의 간격은, 0.1mm 내지 1.0mm인 파우치 케이스. - 제1항에서,
상기 홈부는, 스트라이프 형상으로 형성되어 있는 파우치 케이스. - 제1항에서,
상기 홈부는, 불규칙한 요철 형상으로 형성되어 있는 파우치 케이스. - 제1항에서,
상기 실링층은 열가소성 수지를 포함하는 파우치 케이스. - 상부 케이스와 하부 케이스 사이의 공간에 전극 조립체를 수납하는 단계;
상기 상부 케이스 및 상기 하부 케이스의 테두리부를 상호 열융착하는 단계를 포함하고,
상기 상부 케이스 및 상기 하부 케이스의 테두리부 각각은 순차적으로 적층된 기재층, 금속층 및 실링층을 포함하며,
상기 열융착하는 단계 이전에, 상기 상부 케이스 및 상기 하부 케이스 중 적어도 하나의 실링층의 일면에 복수의 홈부을 형성하는 단계를 더 포함하는 파우치형 이차전지의 제조방법. - 제9항에서,
상기 복수의 홈부를 형성하는 단계는 상기 실링층에 돌출 형상이 형성된 가압면을 갖는 제1 가압부로 가압하는 단계를 포함하는 파우치형 이차전지의 제조방법. - 제9항에서,
상기 제1 가압부에 의해 가해지는 압력은, 0.01MPa 내지 0.2MPa인 파우치형 이차전지의 제조방법. - 제9항에서,
상기 열융착하는 단계는, 평탄한 가압면을 갖는 제2 가압부로 가압하면서 열을 가하는 단계를 포함하는 파우치형 이차전지의 제조방법. - 제9항에서,
상기 홈부의 깊이는, 상기 실링층 두께의 6% 내지 34%인 파우치형 이차전지의 제조방법. - 제9항에서,
상기 홈부의 폭은, 0.1mm 내지 1.0mm인 파우치형 이차전지의 제조방법. - 제9항에서,
상기 홈부는, 격자 형상으로 형성되어 있는 파우치형 이차전지의 제조방법. - 제15항에서,
상기 격자 형상의 간격은, 0.1mm 내지 1.0mm인 파우치형 이차전지의 제조방법. - 제9항에서,
상기 홈부는, 스트라이프 형상으로 형성되어 있는 파우치형 이차전지의 제조방법. - 제9항에서,
상기 홈부는, 불규칙한 요철 형상으로 형성되어 있는 파우치형 이차전지의 제조방법. - 제9항에서,
상기 실링층은 열가소성 수지를 포함하는 파우치형 이차전지의 제조방법.
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| EP (1) | EP3817082B1 (ko) |
| KR (1) | KR102892925B1 (ko) |
| CN (1) | CN112424985B (ko) |
| ES (1) | ES3038098T3 (ko) |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220018272A (ko) * | 2020-08-06 | 2022-02-15 | 에스케이온 주식회사 | 이차전지 파우치 |
| WO2022097918A1 (ko) * | 2020-11-09 | 2022-05-12 | 주식회사 엘지에너지솔루션 | 이차 전지 |
| WO2023063676A1 (ko) * | 2021-10-14 | 2023-04-20 | 주식회사 엘지에너지솔루션 | 전지 셀 및 이를 포함하는 전지 모듈 |
| KR20250061479A (ko) | 2023-10-27 | 2025-05-08 | 에스케이온 주식회사 | 전지셀 어셈블리 및 이를 포함하는 전지셀 모듈 |
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| EP4109616A4 (en) * | 2020-02-20 | 2024-11-20 | NGK Insulators, Ltd. | LITHIUM-ION SECONDARY BATTERY |
| CN115176376B (zh) * | 2021-06-15 | 2025-10-14 | 宁德新能源科技有限公司 | 电化学装置及用电设备 |
| KR20230025140A (ko) * | 2021-08-13 | 2023-02-21 | 주식회사 엘지에너지솔루션 | 이차전지용 파우치 백 및 이를 포함하는 파우치형 이차전지 |
| JP2024503375A (ja) * | 2021-11-30 | 2024-01-25 | エルジー エナジー ソリューション リミテッド | パウチ型電池およびパウチ型電池のシーリング装置 |
| CN120266325A (zh) * | 2022-12-02 | 2025-07-04 | 株式会社 Lg新能源 | 二次电池 |
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| KR100319108B1 (ko) * | 1999-04-16 | 2001-12-29 | 김순택 | 이차 전지의 케이스 |
| KR100571269B1 (ko) * | 2004-09-22 | 2006-04-13 | 삼성에스디아이 주식회사 | 이차전지용 파우치 및 파우치형 이차전지 |
| KR101112450B1 (ko) * | 2006-03-08 | 2012-02-20 | 주식회사 엘지화학 | 밀봉성이 향상된 이차전지 |
| KR101084081B1 (ko) | 2009-07-14 | 2011-11-16 | 삼성에스디아이 주식회사 | 이차전지 |
| KR100956397B1 (ko) * | 2009-11-20 | 2010-05-06 | 주식회사 이아이지 | 실링부가 열가소성 수지 또는 열경화성 수지에 난연 물질 및 내열 물질이 배합된 난연성 및 내열성 수지 조성물로 코팅되어 안전성이 향상된 파우치형 전지 및 그 제조 방법 |
| JP5987336B2 (ja) * | 2011-03-25 | 2016-09-07 | 日本電気株式会社 | 二次電池 |
| JP2013211206A (ja) * | 2012-03-30 | 2013-10-10 | Sanyo Electric Co Ltd | ラミネート外装電池とその製造方法 |
| KR101485783B1 (ko) * | 2012-09-05 | 2015-01-26 | 주식회사 엘지화학 | 우수한 제조 공정성의 전지케이스 및 이를 포함하는 이차전지 |
| KR102073192B1 (ko) * | 2013-08-07 | 2020-02-04 | 삼성에스디아이 주식회사 | 파우치형 배터리셀 |
| JP6221594B2 (ja) * | 2013-10-03 | 2017-11-01 | 凸版印刷株式会社 | 電池用外装体及びこれを用いた電池 |
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| KR101786908B1 (ko) * | 2014-09-17 | 2017-10-18 | 주식회사 엘지화학 | 주름 방지용 패턴이 형성되어 있는 전지 케이스 |
| KR101852250B1 (ko) * | 2015-04-02 | 2018-04-26 | 주식회사 엘지화학 | 파우치형 이차전지의 실링 장치 |
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-
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- 2019-11-13 HU HUE19884288A patent/HUE073149T2/hu unknown
- 2019-11-13 KR KR1020190145143A patent/KR102892925B1/ko active Active
- 2019-11-13 CN CN201980047164.0A patent/CN112424985B/zh active Active
- 2019-11-13 WO PCT/KR2019/015456 patent/WO2020101353A1/ko not_active Ceased
- 2019-11-13 US US17/263,328 patent/US20210143503A1/en active Pending
- 2019-11-13 ES ES19884288T patent/ES3038098T3/es active Active
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20220018272A (ko) * | 2020-08-06 | 2022-02-15 | 에스케이온 주식회사 | 이차전지 파우치 |
| WO2022097918A1 (ko) * | 2020-11-09 | 2022-05-12 | 주식회사 엘지에너지솔루션 | 이차 전지 |
| KR20220062995A (ko) * | 2020-11-09 | 2022-05-17 | 주식회사 엘지에너지솔루션 | 이차 전지 |
| CN115461914A (zh) * | 2020-11-09 | 2022-12-09 | 株式会社Lg新能源 | 二次电池 |
| WO2023063676A1 (ko) * | 2021-10-14 | 2023-04-20 | 주식회사 엘지에너지솔루션 | 전지 셀 및 이를 포함하는 전지 모듈 |
| KR20250061479A (ko) | 2023-10-27 | 2025-05-08 | 에스케이온 주식회사 | 전지셀 어셈블리 및 이를 포함하는 전지셀 모듈 |
Also Published As
| Publication number | Publication date |
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| CN112424985A (zh) | 2021-02-26 |
| US20210143503A1 (en) | 2021-05-13 |
| CN112424985B (zh) | 2023-01-03 |
| EP3817082A4 (en) | 2021-09-01 |
| WO2020101353A1 (ko) | 2020-05-22 |
| EP3817082A1 (en) | 2021-05-05 |
| ES3038098T3 (en) | 2025-10-09 |
| KR102892925B1 (ko) | 2025-11-28 |
| HUE073149T2 (hu) | 2026-01-28 |
| EP3817082B1 (en) | 2025-08-06 |
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