KR102361620B1 - 이차 전지 전극용 바인더 조성물 및 전극 합제 - Google Patents
이차 전지 전극용 바인더 조성물 및 전극 합제 Download PDFInfo
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- KR102361620B1 KR102361620B1 KR1020180126930A KR20180126930A KR102361620B1 KR 102361620 B1 KR102361620 B1 KR 102361620B1 KR 1020180126930 A KR1020180126930 A KR 1020180126930A KR 20180126930 A KR20180126930 A KR 20180126930A KR 102361620 B1 KR102361620 B1 KR 102361620B1
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- South Korea
- Prior art keywords
- secondary battery
- repeating unit
- binder composition
- electrode
- monomer
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- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Natural products OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- UEUXEKPTXMALOB-UHFFFAOYSA-J tetrasodium;2-[2-[bis(carboxylatomethyl)amino]ethyl-(carboxylatomethyl)amino]acetate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]C(=O)CN(CC([O-])=O)CCN(CC([O-])=O)CC([O-])=O UEUXEKPTXMALOB-UHFFFAOYSA-J 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- BDZBKCUKTQZUTL-UHFFFAOYSA-N triethyl phosphite Chemical compound CCOP(OCC)OCC BDZBKCUKTQZUTL-UHFFFAOYSA-N 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 235000015041 whisky Nutrition 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- C08F236/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
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- C08F236/12—Copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated with nitriles
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Abstract
Description
a1 | b1 | b4 | b3 | b5 | b2 | c1-1 | c1-2 | |
실시예 1 | 1 | 1 | 1 | 0.001 | ||||
실시예 2 | 1 | 1 | 0.001 | |||||
실시예 3 | 1 | 1 | 0.002 | |||||
실시예 4 | 1 | 0.5 | 1 | 0.01 | ||||
실시예 5 | 1 | 0.3 | 0.1 | 0.1 | 0.01 | |||
실시예 6 | 1 | 1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.002 | |
실시예 7 | 1 | 1 | 0.02 | |||||
실시예 8 | 1 | 1 | 0.001 | |||||
비교예 1 | 1 | 1 | ||||||
비교예 2 | 1 | 0.002 | ||||||
참고예 1 | 1 | 1 | 1 | 0.06 | ||||
참고예 2 | 1 | 1 | 1 | 0.0005 |
건조 상태 접착력 (단위: gf/cm) |
젖은 상태 접착력 (단위: gf/cm) |
용량 유지율 (%) |
|
실시예 1 | 58 | 32 | 80 |
실시예 2 | 61 | 39 | 83 |
실시예 3 | 53 | 35 | 82 |
실시예 4 | 48 | 37 | 82 |
실시예 5 | 46 | 31 | 80 |
실시예 6 | 59 | 32 | 81 |
실시예 7 | 49 | 41 | 83 |
실시예 8 | 63 | 36 | 81 |
비교예 1 | 59 | 13 | 72 |
비교예 2 | 5 | 3 | 62 |
참고예 1 | 18 | 14 | 70 |
참고예 2 | 58 | 11 | 71 |
Claims (15)
- a1) 공액 디엔계 단량체 유래 제1 반복 단위;
b1) 방향족 비닐계 단량체 유래 반복 단위, b2) 알킬 (메타)아크릴레이트계 단량체 유래 반복 단위, b3) (메타)아크릴 아미드계 단량체 유래 반복 단위, b4) 니트릴계 단량체 유래 반복 단위, 및 b5) 불포화 카르본산계 단량체 유래 반복 단위로 이루어진 군에서 선택된 1종 이상의 제2 반복 단위; 및
c1) 하기 화학식 1로 표시되는 단량체 유래 제3 반복 단위를 포함하는,
유화 중합체 입자를 포함하는,
이차 전지 전극용 바인더 조성물:
[화학식 1]
상기 화학식 1에서,
R1은, 수소, 또는 탄소수 1 내지 10의 알킬기이고,
X는, 수소 또는 메틸기이고,
Y는, -NR2-이고, R2는, 수소, 또는 탄소수 1 내지 10의 알킬기이고,
Z는, 탄소수 1 내지 10의 알킬기이다.
- 제1항에 있어서,
상기 화학식 1의 X는 메틸기이고,
Y는, -NH-이고,
Z는, 탄소수 1 내지 3의 알킬기인, 이차 전지 전극용 바인더 조성물.
- 제1항에 있어서,
상기 유화 중합체 입자는, 상기 제1 반복 단위의 반복 수 대비, 상기 제2 반복 단위를 0.1 내지 5의 비율로 포함하는, 이차 전지 전극용 바인더 조성물.
- 제1항에 있어서,
상기 유화 중합체 입자는, 상기 제1 반복 단위의 반복 수 대비, 상기 제3 반복 단위를 0.0006 내지 0.03의 비율로 포함하는, 이차 전지 전극용 바인더 조성물.
- 제1항에 있어서,
상기 유화 중합체 입자는, 상기 제1 내지 제3 반복 단위의 총 반복 수 대비, 상기 제3 반복 단위를, 0.0001 내지 0.03의 비율로 포함하는, 이차 전지 전극용 바인더 조성물.
- 제1항에 있어서,
상기 유화 중합체 입자는, 음이온계 유화제, 양이온계 유화제, 및 비이온계 유화제로 이루어진 군에서 선택된 1 종 이상의 유화제를 더 포함하는, 이차 전지 전극용 바인더 조성물.
- 제6항에 있어서,
상기 음이온계 유화제는, 소듐 도데실 다이페닐 에테르 다이설포네이트, 소듐 폴리옥시에틸렌 알킬 에테르 설페이트, 소듐 라우릴 설페이트, 소듐 도데실 벤젠 설포네이트, 및 디옥틸 소디움 설포석시네이트로 이루어진 군에서 선택된 1종 이상을 포함하는, 이차 전지 전극용 바인더 조성물.
- 제6항에 있어서,
상기 비이온계 유화제는, 폴리에틸렌옥사이드 알킬 아릴 에테르, 폴리에틸렌옥사이드 알킬 아민, 및 폴리에틸렌옥사이드 알킬 에스테르로 이루어진 군에서 선택된 1종 이상을 포함하는, 이차 전지 전극용 바인더 조성물.
- 제6항에 있어서,
상기 유화 중합체 입자는, 단량체 성분 100 중량부에 대하여, 0.01 내지 10 중량부의 유화제를 포함하는, 이차 전지 전극용 바인더 조성물.
- 제1항에 있어서,
수성 용매를 더 포함하는, 이차 전지 전극용 바인더 조성물.
- 제10항에 있어서,
상기 수성 용매는, 상기 유화 중합체 입자 100 중량부에 대하여, 50 내지 1,000 중량부로 포함되는, 이차 전지 전극용 바인더 조성물.
- 제1항의 이차 전지 전극용 바인더 조성물 및 전극 활물질을 포함하는, 이차 전지 전극 합제.
- 제12항에 있어서,
도전재를 더 포함하는, 이차 전지 전극 합제.
- 제12항의 이차 전지 전극 합제를 포함하는, 전극 합제 층; 및
전극 집전체를 포함하는; 이차 전지 전극.
- 제14항의 이차 전지 전극을 포함하는, 이차 전지.
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US17/267,202 US12068483B2 (en) | 2018-10-23 | 2019-10-21 | Electrode binder composition for rechargeable battery and electrode mixture including the same |
EP19874899.8A EP3819969B1 (en) | 2018-10-23 | 2019-10-21 | Electrode binder composition for rechergeable battery, and electrode mixture including the same |
PCT/KR2019/013829 WO2020085739A1 (ko) | 2018-10-23 | 2019-10-21 | 이차 전지 전극용 바인더 조성물 및 전극 합제 |
CN201980052863.4A CN112567549B (zh) | 2018-10-23 | 2019-10-21 | 用于可充电电池的电极粘合剂组合物和包含该电极粘合剂组合物的电极混合物 |
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WO2017111514A1 (ko) * | 2015-12-24 | 2017-06-29 | 주식회사 엘지화학 | 이차전지용 바인더 조성물, 및 이를 포함하는 이차전지용 전극 및 리튬 이차전지 |
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JP2005190747A (ja) | 2003-12-25 | 2005-07-14 | Jsr Corp | 2次電池電極用増粘結着剤および2次電池電極 |
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JP2010245035A (ja) | 2009-03-17 | 2010-10-28 | Nippon A&L Inc | 電池電極用バインダーおよび電池電極 |
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CN112567549B (zh) | 2023-07-18 |
KR20200045869A (ko) | 2020-05-06 |
WO2020085739A1 (ko) | 2020-04-30 |
US20210313582A1 (en) | 2021-10-07 |
EP3819969B1 (en) | 2025-07-09 |
CN112567549A (zh) | 2021-03-26 |
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US12068483B2 (en) | 2024-08-20 |
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