KR102734010B1 - 액정 고분자, 복합체 조성물, 성형품, 전지 케이스, 및 전지 - Google Patents
액정 고분자, 복합체 조성물, 성형품, 전지 케이스, 및 전지 Download PDFInfo
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Abstract
Description
도 2는 다른 일 실시예에 따른 전지 케이스의 분해 사시도를 나타낸 것이다.
| 조성 (mol%) | 기계적 물성 | |||||||
| HBA | TPA | IPA | BP | HQ | WVTR (g/m2/day) | 충격강도 (kJ/m2) | 인장강도 (kgf/cm2) | |
| 실시예1 | 40 | - | 30 | 10 | 20 | 0.03 | 88 | 1410 |
| 실시예2 | 40 | - | 30 | 13 | 17 | 0.032 | 98 | 1500 |
| 실시예3 | 40 | - | 30 | 15 | 15 | 0.06 | 70 | 1350 |
| 실시예4 | 40 | - | 30 | 5 | 25 | - | 52 | 1400 |
| 실시예5 | 50 | 25 | 10 | 15 | 0.1 | 52 | 1400 | |
| 실시예6 | 40 | 10 | 20 | 10 | 20 | 0.06 | 35 | 1257 |
| 실시예7 | 40 | - | 30 | 20 | 10 | 0.1 | 100 | 400 |
| 실시예8 | 30 | - | 35 | 10 | 25 | 0.08 | 42 | 1200 |
| 비교예1 | 40 | - | 30 | - | 30 | 중합물 고화로 중합 불량 | ||
| 비교예2 | 60 | 5 | 15 | 20 | - | 0.17 | 20 | 887 |
| 비교예3 | 60 | 10 | 10 | 20 | - | 0.15 | 32 | 1026 |
| 비교예4 | 60 | 15 | 5 | 20 | - | 0.16 | 15 | 295 |
| 비교예5 | 50 | - | 25 | 25 | - | 0.2 | 29 | 751 |
| 비교예6 | 50 | 10 | 15 | 20 | 5 | 0.15 | 48 | 1352 |
| 비교예7 | 50 | 15 | 10 | 25 | - | 0.18 | 37 | 1170 |
| 비교예8 | W-A950 | 0.07 | 16 | 1542 | ||||
| LCP (몰%) | CaO (몰%) | WVTR (g/m2/day) |
충격강도 * (kJ/m2) |
인장강도 (kgf/cm2) |
|
| 실시예 1 | 100 | 0 | 0.03 | 88 | 1410 |
| 실시예 1-1 | 90 | 10 | <0.0005 | 94 | 1480 |
| 실시예 1-2 | 70 | 30 | <0.0005 | 90 | 1478 |
| 실시예 2 | 100 | 0 | 0.032 | 98 | 1500 |
| 실시예 2-1 | 90 | 10 | <0.0005 | 102 | 1497 |
| 실시예 2-2 | 70 | 30 | <0.0005 | 100 | 1499 |
| 실시예 3 | 100 | 0 | 0.06 | 70 | 1350 |
| 실시예 3-1 | 90 | 10 | <0.0005 | 72 | 1330 |
| 실시예 3-2 | 70 | 30 | <0.0005 | 73 | 1340 |
| 실시예 5 | 100 | 0 | 0.1 | 52 | 1400 |
| 실시예 5-1 | 90 | 10 | <0.0005 | 60 | 1420 |
| 실시예 5-2 | 70 | 30 | <0.0005 | 59 | 1419 |
| 비교예 5-3 | 68 | 32 | <0.0005 | 41 | 1400 |
| 비교예 8 | 100 | 0 | 0.06 | 16 | 1547 |
| 비교예 8-1 | 90 | 10 | 0.002 | 10 | 1494 |
Claims (20)
- 방향족 하이드록시 카르복실산, 방향족 디카르복실산, 및 방향족 디올로부터 유래하는 구조단위들을 포함하는 액정 고분자로서,
상기 액정 고분자 내 전체 구조단위의 몰수를 기준으로, 상기 방향족 하이드록시 카르복실산으로부터 유래하는 구조단위를 30 몰% 초과 50 몰% 이하 포함하고,
상기 방향족 디카르복실산으로부터 유래하는 구조단위는 방향족 고리의 메타 위치에 두 개의 카르복실기가 연결된 화합물로부터 유래하는 구조단위를 50몰% 이상 포함하고, 또한 상기 방향족 고리의 메타 위치에 두 개의 카르복실기가 연결된 화합물로부터 유래하는 구조단위는 상기 방향족 하이드록시 카르복실산으로부터 유래하는 구조단위 함량의 60 몰% 이상이고,
상기 방향족 디올로부터 유래하는 구조단위는 4,4'-디하이드록시바이페닐(BP)과 하이드로퀴논(HQ)으로부터 유래하는 구조단위를 포함하고, 상기 방향족 디올로부터 유래하는 구조단위 내 4,4'-디하이드록시바이페닐(BP)로부터 유래하는 구조단위의 몰수에 대한 하이드로퀴논(HQ)으로부터 유래하는 구조단위의 몰수의 비는 5.0 미만인,
액정 고분자. - 제1항에서, 상기 방향족 하이드록시 카르복실산으로부터 유래하는 구조단위는 하기 화학식 1 또는 하기 화학식 2로 표시되는 액정 고분자:
[화학식 1]
[화학식 2]
. - 제1항에서, 상기 방향족 하이드록시 카르복실산으로부터 유래하는 구조단위는 p-하이드록시벤조산으로부터 유래하는 구조단위, 6-하이드록시-2-나프톤산으로부터 유래하는 구조단위, 또는 이들의 조합을 포함하는 액정 고분자.
- 제1항에서, 상기 방향족 고리의 메타 위치에 두 개의 카르복실기가 연결된 화합물로부터 유래하는 구조단위는 아이소프탈산(IPA)으로부터 유래하는 구조단위를 포함하는 액정 고분자.
- 삭제
- 제1항에서, 상기 방향족 디카르복실산으로부터 유래하는 구조단위 중 상기 방향족 고리의 메타 위치에 두 개의 카르복실기가 연결된 화합물로부터 유래하는 구조단위는 상기 방향족 하이드록시 카르복실산으로부터 유래하는 구조단위 함량의 70 몰% 이상 포함되는 액정 고분자.
- 제1항에서, 상기 방향족 디올로부터 유래하는 구조단위 내 4,4'-디하이드록시바이페닐(BP)로부터 유래하는 구조단위의 몰수에 대한 하이드로퀴논(HQ)으로부터 유래하는 구조단위의 몰수의 비는 1.0 이상인 액정 고분자.
- 제1항에서, 상기 방향족 디올로부터 유래하는 구조단위 내 4,4'-디하이드록시바이페닐(BP)로부터 유래하는 구조단위의 몰수에 대한 하이드로퀴논(HQ)으로부터 유래하는 구조단위의 몰수의 비는 1.0 이상 4.0 미만인 액정 고분자.
- 제1항에 따른 액정 고분자, 및 무기 흡습제를 포함하는 복합체 조성물.
- 제9항에서, 상기 무기 흡습제는 실리카겔, 제올라이트, CaO, BaO, MgSO4, Mg(ClO4)2, MgO, P2O5, Al2O3, CaH2, NaH, LiAlH4, CaSO4, Na2SO4, CaCO3, K2CO3, CaCl2, Ba(ClO4)2, Ca, 또는 이들의 2 이상의 조합을 포함하는 복합체 조성물.
- 제9항에서, 상기 무기 흡습제는 상기 복합체 조성물의 총 중량을 기준으로 30 중량% 이하 포함되는 복합체 조성물.
- 제1항에 따른 액정 고분자, 또는 제9항에 따른 복합체 조성물을 포함하는 성형품.
- 제12항에서, 상기 성형품은 ISO 15106 및 ASTM F1249에 따라 38℃ 및 상대습도 100%에서 측정한 수증기투과율(WVTR)이 0.1 g/m2/day 이하이고, ASTM D265 에 따라 측정한 충격 강도가 70 KJ/m2 이상인 성형품.
- 제12항에서, 상기 성형품은 상기 복합체 조성물을 포함하고, 상기 복합체 조성물은 조성물의 총 중량을 기준으로 무기 흡습제를 1 중량% 이상 30 중량% 이하 포함하는 성형품.
- 제14항에서, 상기 성형품은 ISO 15106 및 ASTM F1249에 따라 38℃ 및 상대습도 100%에서 측정한 수증기투과율(WVTR)이 0.07 g/m2/day 미만인 성형품.
- 제12항에 따른 성형품을 포함하는 전지 케이스.
- 제16항에서, 상기 전지 케이스는 전극 조립체를 수용하기 위한 수용부(container)를 포함하고, 상기 수용부는 하부벽(bottom wall) 및 복수개의 측벽(side wall)을 포함하고, 상기 하부벽에 대향하는 면은 개방되어 이를 통해 전극 조립체를 도입할 수 있고, 상기 개방된 면의 적어도 일부를 덮는(close) 덮개부를 포함하는 전지 케이스.
- 제17항에서, 상기 덮개부는 양극 단자 및 음극 단자 중 적어도 하나를 포함하는 전지 케이스.
- 제17항에서, 상기 수용부는 1 이상의 격벽(partition wall)에 의해 분리된 복수개의 전지 구획부(cell comparatment)를 포함하는 전지 케이스.
- 제16항에 따른 전지 케이스, 및
상기 전지 케이스의 수용부에 수용되는, 양극과 음극을 포함하는 전극 조립체를 포함하는 전지.
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| US16/688,203 US11499009B2 (en) | 2018-11-21 | 2019-11-19 | Liquid crystal polymer, composite composition, article, battery case, and battery |
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