KR20180100698A - 개선된 분리기, 전지, 시스템, 차량 및 관련 방법 - Google Patents
개선된 분리기, 전지, 시스템, 차량 및 관련 방법 Download PDFInfo
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- KR20180100698A KR20180100698A KR1020187024301A KR20187024301A KR20180100698A KR 20180100698 A KR20180100698 A KR 20180100698A KR 1020187024301 A KR1020187024301 A KR 1020187024301A KR 20187024301 A KR20187024301 A KR 20187024301A KR 20180100698 A KR20180100698 A KR 20180100698A
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Abstract
Description
도 2는 20,000×의 배율에서 비교예 1(CE1)에 따른 분리기의 SEM 표면도이다.
도 3은 CE1 및 CE2와 비교할 때 EX1 및 EX2의 더 나은 방전 성능을 증명한다. CE1은 MD만 연신된(TD 연신 없음) 마이크로다공성, 건식 공정, 25 ㎛ 두께, 단층 폴리프로필렌(PP) 멤브레인이다. CE2는 MD만 연신된(TD 연신 없음) 마이크로다공성, 건식 공정, 16 ㎛ 두께, 단층 폴리프로필렌(PP) 멤브레인이다.
도 4는 CE1 및 CE2와 비교할 때 EX1 및 EX2의 더 나은 C-속도 성능을 증명한다.
도 5는 CE3과 비교하여 EX1의 더 나은 C-속도 성능을 증명한다. CE3은 MD만 연신된(TD 연신 없음) 마이크로다공성, 건식 공정, 16 ㎛ 두께, 단층 폴리프로필렌(PP) 멤브레인이다.
| 특성 | CE1 | EX2 | EX1 |
| 두께 (㎛) | 25 | 20 | 15 |
| 공극률, % | 55% | 69% | 74% |
| 걸리(Gurley)(JIS), 초 | 200 | 65 | 28 |
| TD 수축률(Shrinkage) @ 90C/1 hr | 0 | 0.1 | 0.2 |
| MD 수축률 @ 90C/1 hr | 3-5 | 4.5 | 4.6 |
| 천공 강도, 그램 | 335 | 400 | 220 |
| MD 인장 (kg/㎠) | 1055 | 950 | 788 |
| TD 인장 (kg/㎠) | 135 | 650 | 529 |
| ER (ohm-㎠) | 1.35 | 0.7 | 0.5 |
| DB, 볼트 | 1800 | 1600 | 900 |
| 아쿠아포어(Aquapore) 크기 (㎛) | 0.060 | 0.090 | 0.096 |
| 평균 흐름(Flow) 기공 크기 (㎛) | 0.036 | 0.050 | 0.50 |
| C-속도 | ||
| 1C | 10C | |
| CE1 | 158.38 mAh/g | 102.34 mAh/g |
| CE2 | 156.85 mAh/g | 90.80 mAh/g |
| EX1 | 156.91 mAh/g | 111.63 mAh/g |
| EX2 | 156.79 mAh/g | 108.64 mAh/g |
Claims (23)
- 적어도 3C 충전 및/또는 방전 성능을 갖는 전지를 제공하는 마이크로다공성 중합체 필름을 포함하는 멤브레인.
- 제1항에 있어서,
상기 마이크로다공성 중합체 필름은 바람직하게는 건식-연신 공정에 의해 제조되고, 바람직하게는 실질적으로 둥근 형상의 기공, 및 0.5 내지 5.0 범위의 가로 방향 인장 강도에 대한 기계 방향 인장 강도의 비율, 및 50% 내지 80% 범위의 공극률을 갖는 멤브레인. - 제1항에 있어서,
상기 필름은 기계 방향 연신 및 동시 제어 기계 방향 이완을 포함한 가로 방향 연신, 동시 또는 순차적 기계 방향 연신 및 가로 방향 연신, 및 기계 방향 연신 이후에 뒤따르는 동시 기계 방향 이완을 포함한 가로 방향 연신을 포함하는 이축 연신: 중 적어도 하나를 포함하는 연신 방법에 의해 제조되는 멤브레인. - 제1항에 있어서,
중합체는 반-결정성 중합체 및 20 내지 80% 범위의 결정도를 갖는 반-결정성 중합체 중 적어도 하나인 멤브레인. - 제1항에 있어서,
상기 중합체는 폴리올레핀, 플루오로카본, 폴리아미드, 폴리에스테르, 폴리아세탈(또는 폴리옥시메틸렌), 폴리설파이드, 폴리비닐 알코올, 이들의 공중합체 및 이들의 조합으로 이루어진 군에서 선택되는 멤브레인. - 제1항에 있어서,
상기 마이크로다공성 중합체 필름의 평균 기공 크기는 0.09 내지 0.99 마이크론의 범위에 있는 멤브레인. - 제1항에 있어서,
상기 마이크로다공성 중합체 필름은 60 내지 80% 범위의 공극률을 갖는 멤브레인. - 제1항에 있어서,
상기 가로 인장 강도는 ≥ 500 kg/㎠인 멤브레인. - 제1항에 있어서,
10 내지 25 마이크론 범위의 두께, 60 내지 80% 범위의 공극률, 500 내지 700 kg/㎠ 범위의 가로 방향(TD) 인장 강도, 700 내지 1000 kg/㎠ 범위의 기계 방향(MD) 인장 강도, 및 1.4 내지 1.6 범위의 MD/TD 인장 강도 비율을 갖는 멤브레인. - 제1항의 멤브레인을 포함하는 전지 분리기.
- 제10항에 있어서,
멤브레인은 다겹 멤브레인 중 적어도 하나의 겹인 전지 분리기. - 제11항에 있어서,
다겹 멤브레인의 겹은 서로 적층되는 전지 분리기. - 제10항에 있어서,
멤브레인은 다겹 멤브레인 중 모든 겹인 전지 분리기. - 제10항에 있어서,
다겹 멤브레인의 겹은 동일한 재료로 제조되는 전지 분리기. - 제10항에 있어서,
다겹 멤브레인의 겹은 다른 재료로 제조되는 전지 분리기. - 제11항의 전지 분리기를 포함하는 전지.
- 제1항의 멤브레인을 포함하는 다층 멤브레인 구조.
- 제17항에 있어서,
다겹 멤브레인의 겹은 공-압출되는 다층 멤브레인 구조. - 제18항에 있어서,
다겹 멤브레인의 겹은 동일한 재료로 제조되는 다층 멤브레인 구조. - 제18항에 있어서,
다겹 멤브레인의 겹은 다른 재료로 제조되는 다층 멤브레인 구조. - 멤브레인을 포함하는 장치로서, 멤브레인은 제1항에 따른 멤브레인이고, 장치는 전지, 셀, 전지 팩, 시스템, 전자 장치, 차량 또는 연료 전지인 장치.
- 제1항에 있어서,
마이크로다공성 중합체 필름은 적어도 5C를 갖는 전지를 제공하는 멤브레인. - 제1항에 있어서,
마이크로다공성 중합체 필름은 적어도 10C를 갖는 전지를 제공하는 멤브레인.
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| Application Number | Priority Date | Filing Date | Title |
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| US15/009,888 US20170222205A1 (en) | 2016-01-29 | 2016-01-29 | Separators, batteries, systems, vehicles, and related methods |
| US15/009,888 | 2016-01-29 | ||
| PCT/US2017/015230 WO2017132439A1 (en) | 2016-01-29 | 2017-01-27 | Improved separators, battereies systems, vehicles, and related methods |
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| KR102431613B1 (ko) * | 2019-02-26 | 2022-08-12 | 한국자동차연구원 | 연료전지용 분리판 |
| JP7489767B2 (ja) * | 2019-11-06 | 2024-05-24 | 住友化学株式会社 | 非水電解液二次電池用セパレータの製造方法、非水電解液二次電池用部材の製造方法および非水電解液二次電池の製造方法 |
| US11495786B2 (en) * | 2020-03-07 | 2022-11-08 | Slobodan Petrovic | Inserted cavity electrode lithium battery |
| JP7682671B2 (ja) * | 2021-03-30 | 2025-05-26 | 住友化学株式会社 | 非水電解液二次電池用セパレータ、非水電解液二次電池用部材および非水電解液二次電池 |
| CN115810874B (zh) * | 2022-07-11 | 2024-10-11 | 宁德时代新能源科技股份有限公司 | 一种隔离膜、其制备方法及包含其的二次电池和用电装置 |
| CN115274315B (zh) * | 2022-09-27 | 2022-12-20 | 江苏中奕和创智能科技有限公司 | 一种储能锂电池系统用电容器 |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR102897090B1 (ko) | 2025-12-08 |
| EP3411916A4 (en) | 2019-09-11 |
| EP3411916B1 (en) | 2023-10-11 |
| US20190027725A1 (en) | 2019-01-24 |
| US20210194091A1 (en) | 2021-06-24 |
| US12263649B2 (en) | 2025-04-01 |
| US20170222205A1 (en) | 2017-08-03 |
| US11557812B2 (en) | 2023-01-17 |
| US20240100781A1 (en) | 2024-03-28 |
| EP3411916A1 (en) | 2018-12-12 |
| EP4234206A3 (en) | 2023-10-18 |
| JP2019505071A (ja) | 2019-02-21 |
| JP2022068169A (ja) | 2022-05-09 |
| US10944087B2 (en) | 2021-03-09 |
| CN114709553A (zh) | 2022-07-05 |
| US11833763B2 (en) | 2023-12-05 |
| JP7796159B2 (ja) | 2026-01-08 |
| WO2017132439A1 (en) | 2017-08-03 |
| CN109075292B (zh) | 2022-05-10 |
| EP4234206A2 (en) | 2023-08-30 |
| US20230101052A1 (en) | 2023-03-30 |
| JP2024096741A (ja) | 2024-07-17 |
| CN109075292A (zh) | 2018-12-21 |
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