KR20200042220A - 나노 셀룰로오스 복합체, 이의 제조방법 및 이를 포함하여 제조된 이차전지용 분리막 - Google Patents
나노 셀룰로오스 복합체, 이의 제조방법 및 이를 포함하여 제조된 이차전지용 분리막 Download PDFInfo
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- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/489—Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
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Abstract
Description
도 2a는 본 발명의 일 실시예에 따른 분리막(박막)의 구조의 모식도이다.
도 2b는 도 2a의 A 구역을 확대하여 나타낸 나노셀룰로오스 복합체의 모식도이다.
도 3은 본 발명의 제조예 1에 따른 나노셀룰로오스 복합체의 주사전자현미경(SEM)(a) 및 투과전자현미경(TEM)(b) 이미지이다.
도 4는 본 발명의 제조예 1에 따른 나노셀룰로오스 복합체의 열적 안정성 평가결과이다.
도 5는 본 발명의 제조예 2에 따른 박막을 관찰한 주사전자현미경(SEM) 이미지이다.
도 6은 본 발명의 제조예 2에 따른 박막의 전해액 젖음성을 평가한 실험 결과를 나타낸 이미지이다.
110: 다공성 구조 200: 실리카 입자
300: 나노셀룰로오스 복합체 400: 박막(분리막)
Claims (11)
- 셀룰로오스 나노섬유; 및
상기 셀룰로오스 나노섬유 표면 상에 부착된 실리카 입자를 구비하고, 상기 셀룰로오스 나노섬유는 적어도 일부 노출된 표면을 갖는 것인 나노셀룰로오스 복합체를 포함하고,
상기 나노셀룰로오스 복합체는 다수개의 상기 나노셀룰로오스 복합체가 부직웹을 형성하고, 상기 부직웹은 상기 셀룰로오스 나노섬유 사이에 형성된 다수의 기공을 구비하는 것인, 나노셀룰로오스 복합체. - 제1항에 있어서,
상기 복합체는 박막 형태인 것인, 나노셀룰로오스 복합체. - 제1항에 있어서,
상기 실리카 입자는 상기 셀룰로오스 나노섬유 100 중량 대비 10 내지 20 중량으로 함유되는 것인, 나노셀룰로오스 복합체. - 셀룰로오스 나노섬유 분산액을 준비하는 단계; 및
상기 셀룰로오스 나노섬유 분산액에 실리카 전구체를 넣고 반응시켜 상기 셀룰로오스 나노섬유의 표면에 실리카 입자가 부착된 나노셀룰로오스 복합체를 형성하는 단계를 포함하는 것인, 나노 셀룰로오스 복합체 제조방법. - 제4항에 있어서,
상기 셀룰로오스 나노섬유 분산액의 용매는 유기용매인 것인, 나노 셀룰로오스 복합체 제조방법. - 제4항에 있어서,
상기 나노셀룰로오스 복합체를 유기용매에 분산시킨 나노셀룰로오스 복합체 용액을 제조하고, 상기 복합체 용액을 코팅하여 박막을 형성하는 단계를 더 포함하는 것인, 나노 셀룰로오스 복합체 제조방법. - 제6항에 있어서,
상기 나노셀룰로오스 복합체 용액 내에서 다수의 나노셀룰로오스 복합체는 서로 엉기어 부직웹을 형성하고, 상기 부직웹은 상기 셀룰로오스 나노섬유 사이에 형성된 다수의 기공을 구비하는 것인, 나노 셀룰로오스 복합체 제조방법. - 제4항에 있어서,
상기 나노셀룰로오스 복합체에서 상기 셀룰로오스 나노섬유는 적어도 일부 노출된 표면을 갖는 것인, 나노 셀룰로오스 복합체 제조방법. - 셀룰로오스 나노섬유; 및
상기 셀룰로오스 나노섬유 표면 상에 부착된 실리카 나노입자를 구비하고, 상기 셀룰로오스 나노섬유는 적어도 일부 노출된 표면을 갖는 것인, 나노셀룰로오스 복합체를 포함하고,
상기 나노셀룰로오스 복합체는 다수개의 상기 나노셀룰로오스 복합체가 부직웹을 형성하고, 상기 부직웹은 상기 셀룰로오스 나노섬유 사이에 형성된 다수의 기공을 구비하는 것인, 이차전지용 분리막. - 제9항에 있어서,
상기 복합체는 박막 형태로 제조되는 것인, 이차전지용 분리막. - 제9항에 있어서,
상기 이차전지는 리튬이온 이차전지, 리튬이온 폴리머 전지, 납축전지, 알칼리 축전지 및 니켈-카드뮴 전지으로 이루어진 군으로부터 선택되는 어느 하나의 것인, 이차전지용 분리막.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022196902A1 (en) * | 2021-03-17 | 2022-09-22 | Lg Electronics Inc. | Separator structure, method for producing the same, and secondary battery using the same |
| US20230223651A1 (en) * | 2022-01-13 | 2023-07-13 | Arizona Board Of Regents On Behalf Of Arizona State University | Oxidized bacterial cellulose separator for batteries and method for producing the same |
| WO2025058420A1 (ko) | 2023-09-14 | 2025-03-20 | 엘지전자 주식회사 | 금속산화물-나노셀룰로오스 섬유, 이를 포함하는 다공성 필름 및 이차전지용 분리막 |
| WO2025075484A1 (ko) * | 2023-10-06 | 2025-04-10 | 롯데케미칼 주식회사 | 리튬 금속 전지 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131390A (ja) * | 1997-10-27 | 1999-05-18 | Toppan Printing Co Ltd | コーテッド紙 |
| KR20120125400A (ko) * | 2008-03-25 | 2012-11-14 | 가부시끼가이샤 도시바 | 비수 전해질 전지 |
| KR101423296B1 (ko) * | 2012-12-05 | 2014-07-24 | 대한민국 | 셀룰로오스 섬유와 실리카를 포함하는 이차전지용 다공성 분리막 및 그 제조방법 |
| JP2017036381A (ja) * | 2015-08-10 | 2017-02-16 | 株式会社エマオス京都 | 複合膜及びその製造方法 |
| KR20180104708A (ko) * | 2016-02-02 | 2018-09-21 | 유니버시티 오브 워싱턴 | 세라믹 선택적 막 |
| KR20180108000A (ko) | 2017-03-23 | 2018-10-04 | 주식회사 엘지화학 | 이차전지 및 그 이차전지의 제조방법 |
-
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- 2018-10-15 KR KR1020180122534A patent/KR102293299B1/ko active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11131390A (ja) * | 1997-10-27 | 1999-05-18 | Toppan Printing Co Ltd | コーテッド紙 |
| KR20120125400A (ko) * | 2008-03-25 | 2012-11-14 | 가부시끼가이샤 도시바 | 비수 전해질 전지 |
| KR101423296B1 (ko) * | 2012-12-05 | 2014-07-24 | 대한민국 | 셀룰로오스 섬유와 실리카를 포함하는 이차전지용 다공성 분리막 및 그 제조방법 |
| JP2017036381A (ja) * | 2015-08-10 | 2017-02-16 | 株式会社エマオス京都 | 複合膜及びその製造方法 |
| KR20180104708A (ko) * | 2016-02-02 | 2018-09-21 | 유니버시티 오브 워싱턴 | 세라믹 선택적 막 |
| KR20180108000A (ko) | 2017-03-23 | 2018-10-04 | 주식회사 엘지화학 | 이차전지 및 그 이차전지의 제조방법 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022196902A1 (en) * | 2021-03-17 | 2022-09-22 | Lg Electronics Inc. | Separator structure, method for producing the same, and secondary battery using the same |
| US12283714B2 (en) | 2021-03-17 | 2025-04-22 | Lg Electronics Inc. | Separator structure, method for producing the same, and secondary battery using the same |
| EP4309237A4 (en) * | 2021-03-17 | 2025-09-24 | Lg Electronics Inc | SEPARATOR STRUCTURE, ITS PRODUCTION METHOD AND SECONDARY BATTERY USING SAME |
| US20230223651A1 (en) * | 2022-01-13 | 2023-07-13 | Arizona Board Of Regents On Behalf Of Arizona State University | Oxidized bacterial cellulose separator for batteries and method for producing the same |
| WO2025058420A1 (ko) | 2023-09-14 | 2025-03-20 | 엘지전자 주식회사 | 금속산화물-나노셀룰로오스 섬유, 이를 포함하는 다공성 필름 및 이차전지용 분리막 |
| WO2025075484A1 (ko) * | 2023-10-06 | 2025-04-10 | 롯데케미칼 주식회사 | 리튬 금속 전지 |
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