KR20220126221A - 부식 방지층의 제조 방법 및 원통형 이차전지 - Google Patents
부식 방지층의 제조 방법 및 원통형 이차전지 Download PDFInfo
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Abstract
제1 전극, 제2 전극 및 이들 사이에 개재된 분리막이 권취 축을 기준으로 일 방향으로 권취된 구조를 갖는 젤리-롤 타입의 전극 조립체, 상기 전극 조립체를 수용하고 금속 도금층을 포함하는 전지 캔, 및 상기 전지 캔과 전극 조립체를 접합하는 접속 리드판을 포함하는 원통형 이차전지의 부식 방지층의 제조 방법에 있어서,
(A) 상기 전지 캔의 외부 바닥면의 용접 시, 상기 접속 리드판과 상기 전지 캔이 용융되어 형성되는 용접부에서 상기 금속 도금층이 손상된 부위에 부식 방지층용 수지를 도포하는 단계; 및
(B) 상기 부식 방지층용 수지를 자외선에 의해 경화하여 부식 방지층을 형성하는 단계
를 포함하고,
상기 부식 방지층용 수지는 1 이상의 액상물질을 포함하며,
상기 1 이상의 액상물질은 자외선 경화성이고, 1cP 이상 5000cP 이하의 점도를 갖는 것인
부식 방지층의 제조 방법을 제공한다.
Description
2: 금속 도금층
3: 용접부
4: 부식 방지층용 수지
5: 노즐
6: 부식 방지층
7: 자외선
8: UV 램프
Claims (14)
- 제1 전극, 제2 전극 및 이들 사이에 개재된 분리막이 권취 축을 기준으로 일 방향으로 권취된 구조를 갖는 젤리-롤 타입의 전극 조립체, 상기 전극 조립체를 수용하고 금속 도금층을 포함하는 전지 캔 및 상기 전지 캔과 전극 조립체를 접합하는 접속 리드판을 포함하는 원통형 이차전지의 부식 방지층의 제조 방법에 있어서,
(A) 상기 전지 캔의 외부 바닥면의 용접 시, 상기 접속 리드판과 상기 전지 캔이 용융되어 형성되는 용접부에서 상기 금속 도금층이 손상된 부위에 부식 방지층용 수지를 도포하는 단계; 및
(B) 상기 부식 방지층용 수지를 자외선에 의해 경화하여 부식 방지층을 형성하는 단계
를 포함하고,
상기 부식 방지층용 수지는 1 이상의 액상물질을 포함하며,
상기 1 이상의 액상물질은 자외선 경화성이고, 1cP 이상 5000cP 이하의 점도를 갖는 것인
부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 부식 방지층용 수지는 발광물질을 더 포함하고,
(C) 자외선으로 상기 전지 캔 상에 부식 방지층용 수지의 도포 상태를 확인하는 단계를 더 포함하는 부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 부식 방지층용 수지는 에폭시계, 아크릴레이트계, 실리콘계 및 우레탄아크릴계 수지 중에서 선택되는 하나 이상인 것인 부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 (B) 단계의 경화 시간은 5초 이상 30초 이하인 것인 부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 전지 캔은 철을 포함하는 것인 부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 금속 도금층은 니켈을 포함하는 것인 부식 방지층의 제조 방법. - 청구항 1에 있어서,
상기 부식 방지층의 두께는 1μm 초과 10μm 미만인 것인 부식 방지층의 제조 방법. - 제1 전극, 제2 전극 및 이들 사이에 개재된 분리막이 권취 축을 기준으로 일 방향으로 권취된 구조를 갖는 젤리-롤 타입의 전극 조립체;
상기 전극 조립체를 수용하고 금속 도금층을 포함하는 전지 캔;
상기 전지 캔과 전극 조립체를 접합하는 접속 리드판; 및
청구항 1 내지 7 중 어느 한 항에 따른 부식 방지층의 제조 방법으로 제조된 부식 방지층
을 포함하는 원통형 이차전지. - 제1 전극, 제2 전극 및 이들 사이에 개재된 분리막이 권취 축을 기준으로 일 방향으로 권취된 구조를 갖는 젤리-롤 타입의 전극 조립체;
상기 전극 조립체를 수용하고 금속 도금층을 포함하는 전지 캔;
상기 전지 캔과 전극 조립체를 접합하는 접속 리드판; 및
상기 전지 캔의 외부 바닥면의 상기 접속 리드판과 상기 전지 캔이 용융되어 형성되는 용접부에서 상기 전지 캔의 외부 표면이 손상된 부위에 배치되는 부식 방지층
을 포함하는 원통형 이차전지. - 청구항 8에 있어서,
상기 부식 방지층은 부식 방지층용 수지를 포함하고,
상기 부식 방지층용 수지는 에폭시계, 아크릴레이트계, 실리콘계 및 우레탄아크릴계 수지 중에서 선택되는 하나 이상인 것인 원통형 이차전지. - 청구항 10에 있어서,
상기 부식 방지층용 수지는 발광물질을 더 포함하는 것인 원통형 이차전지. - 청구항 8에 있어서,
상기 전지 캔은 철을 포함하는 것인 원통형 이차전지. - 청구항 8에 있어서,
상기 금속 도금층은 니켈을 포함하는 것인 원통형 이차전지. - 청구항 8에 있어서,
상기 부식 방지층의 두께는 1μm 초과 10μm 미만인 것인 원통형 이차전지.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20210030319 | 2021-03-08 | ||
| KR1020210030319 | 2021-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20220126221A true KR20220126221A (ko) | 2022-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020220027745A Ceased KR20220126221A (ko) | 2021-03-08 | 2022-03-03 | 부식 방지층의 제조 방법 및 원통형 이차전지 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20240313371A1 (ko) |
| EP (1) | EP4307464B1 (ko) |
| JP (1) | JP7616717B2 (ko) |
| KR (1) | KR20220126221A (ko) |
| CN (2) | CN115051086A (ko) |
| WO (1) | WO2022191509A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2025226117A1 (ko) * | 2024-04-23 | 2025-10-30 | 삼성에스디아이(주) | 이차 전지 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115051086A (zh) * | 2021-03-08 | 2022-09-13 | 株式会社Lg新能源 | 腐蚀防止层的制造方法及圆筒形二次电池 |
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| JPH01258355A (ja) * | 1988-04-08 | 1989-10-16 | Toyo Seikan Kaisha Ltd | 乾電池用外装缶の製法 |
| US5175227A (en) * | 1989-07-13 | 1992-12-29 | Akzo N.V. | Acid etch resistant coatings containing polyurethane polyols |
| US5278074A (en) * | 1992-04-22 | 1994-01-11 | Nalco Chemical Company | Method of monitoring and controlling corrosion inhibitor dosage in aqueous systems |
| EP2272124B1 (en) * | 2008-04-02 | 2016-03-23 | PowerGenix Systems, Inc. | Cylindrical nickel-zinc cell with negative can |
| CN202633453U (zh) * | 2012-05-07 | 2012-12-26 | 宁德新能源科技有限公司 | 一种圆柱型锂离子二次电池 |
| KR101861381B1 (ko) * | 2012-10-09 | 2018-07-05 | 주식회사 케이씨씨 | 폴리아마이드 어덕트 경화제 조성물 및 이를 포함하는 선박 방청용 프라이머 에폭시 도료 |
| JP6107640B2 (ja) * | 2013-12-20 | 2017-04-05 | 東亞合成株式会社 | 活性エネルギー線硬化型コーティング剤組成物 |
| JP2015170395A (ja) * | 2014-03-05 | 2015-09-28 | 日立オートモティブシステムズ株式会社 | 円筒形二次電池 |
| JP6200448B2 (ja) * | 2015-04-20 | 2017-09-20 | 矢崎総業株式会社 | 防食材、端子付き電線及びワイヤーハーネス |
| CN107528013A (zh) * | 2017-08-21 | 2017-12-29 | 力神电池(苏州)有限公司 | 一种具有防锈功能的圆型锂离子电池及其防锈处理设备 |
| CN110556500A (zh) * | 2018-05-31 | 2019-12-10 | 比亚迪股份有限公司 | 锂离子二次电池组件及其制备方法和锂离子二次电池 |
| KR102466465B1 (ko) | 2018-10-26 | 2022-11-11 | 삼성전자 주식회사 | 스위칭 레귤레이터를 이용하여 복수의 증폭기들에 선택적으로 전압을 공급하는 방법 및 장치 |
| CN115051086A (zh) * | 2021-03-08 | 2022-09-13 | 株式会社Lg新能源 | 腐蚀防止层的制造方法及圆筒形二次电池 |
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- 2022-03-02 CN CN202210203120.6A patent/CN115051086A/zh active Pending
- 2022-03-02 CN CN202220453133.4U patent/CN217691371U/zh active Active
- 2022-03-03 KR KR1020220027745A patent/KR20220126221A/ko not_active Ceased
- 2022-03-03 US US18/267,027 patent/US20240313371A1/en active Pending
- 2022-03-03 JP JP2023533603A patent/JP7616717B2/ja active Active
- 2022-03-03 EP EP22767405.8A patent/EP4307464B1/en active Active
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| WO2025226117A1 (ko) * | 2024-04-23 | 2025-10-30 | 삼성에스디아이(주) | 이차 전지 |
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|---|---|
| EP4307464B1 (en) | 2026-04-29 |
| JP7616717B2 (ja) | 2025-01-17 |
| US20240313371A1 (en) | 2024-09-19 |
| JP2023552982A (ja) | 2023-12-20 |
| CN217691371U (zh) | 2022-10-28 |
| EP4307464A1 (en) | 2024-01-17 |
| CN115051086A (zh) | 2022-09-13 |
| WO2022191509A1 (ko) | 2022-09-15 |
| EP4307464A4 (en) | 2024-12-18 |
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