KR100289973B1 - 전지및그의제조방법 - Google Patents
전지및그의제조방법 Download PDFInfo
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- KR100289973B1 KR100289973B1 KR1019980700279A KR19980700279A KR100289973B1 KR 100289973 B1 KR100289973 B1 KR 100289973B1 KR 1019980700279 A KR1019980700279 A KR 1019980700279A KR 19980700279 A KR19980700279 A KR 19980700279A KR 100289973 B1 KR100289973 B1 KR 100289973B1
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Abstract
Description
15사이클째 1/3C 방전 용량 E15mAh | 16사이클째 1.0C 방전 용량 E16mAh | 15→16사이클용량 변화율% | 18사이클째 1/3C 방전 용량 E18mAh | 19사이클째 2.0C 방전 용량 E19mAh | 18→19사이클용량 변화율% | |
실시예 1-A | 4.326 | 4.017 | -7.1 | 4.311 | 2.354 | -45.4 |
실시예 1-B | 4.342 | 4.076 | -6.1 | 4.303 | 1.553 | -63.9 |
비교예 1-A | 4.350 | 3.959 | -9.0 | 4.337 | 1.341 | -69.1 |
비교예 1-B | 4.383 | 4.058 | -7.4 | 4.364 | 1.502 | -65.6 |
n사이클째→(n-1)사이클째의 용량 변화율%: [En-E(n-1)] / E(n-1)×100 |
10사이클째 1/3C 방전 용량 E10mAh | 11사이클째 1.0C 방전 용량 E11mAh | 10→11사이클용량 변화율% | 12사이클째 1/3C 방전 용량 E12mAh | 13사이클째 2.0C 방전 용량 E13mAh | 12→13사이클용량 변화율% | |
실시예 2-A | 5.027 | 4.944 | -1.7 | 5.002 | 4.695 | -6.1 |
실시예 2-B | 5.031 | 4.977 | -1.1 | 5.005 | 4.821 | -3.7 |
실시예 2-C | 5.011 | 4.933 | -1.6 | 4.998 | 4.655 | -6.9 |
비교예 2 | 5.025 | 4.925 | -2.0 | 5.000 | 4.425 | -11.5 |
n사이클째→(n-1)사이클째의 용량 변화율%: [En-E(n-1)/E(n-1)]×100 |
10사이클째 1/3C 방전 용량 E10mAh | 11사이클째 1.0C 방전 용량 E11mAh | 10→11사이클용량 변화율% | 12사이클째 1/3C 방전 용량 E12mAh | 13사이클째 2.0C 방전용량 E13mAh | 12→13사이클용량 변화율% | |
실시예 4 | 5.040 | 4.960 | -1.6 | 5.009 | 4.771 | -4.8 |
비교예 4 | 5.025 | 4.925 | -2.0 | 5.000 | 4.425 | -11.5 |
10사이클째 1/3C 방전 용량 E10mAh | 11사이클째 1.0C 방전 용량 E11mAh | 10→11사이클용량 변화율% | 12사이클째 1/3C 방전 용량 E12mAh | 13사이클째 2.0C 방전 용량 E13mAh | 12→13사이클용량 변화율% | |
실시예 5 | 5.027 | 4.944 | -1.7 | 5.003 | 4.766 | -4.7 |
비교예 5 | 5.025 | 4.925 | -2.0 | 5.000 | 4.425 | -11.5 |
10사이클째 1/3C 방전 용량 E10mAh | 11사이클째 1.0C 방전 용량 E11mAh | 10→11사이클용량 변화율% | 12사이클째 1/3C 방전 용량 E12mAh | 13사이클째 2.0C 방전 용량 E13mAh | 12→13사이클용량 변화율% | |
실시예 6 | 5.016 | 4.923 | -1.9 | 4.998 | 4.732 | -5.3 |
비교예 6 | 5.025 | 4.925 | -2.0 | 5.000 | 4.425 | -11.5 |
10사이클째 1/3C 방전 용량 E10mAh | 11사이클째 1.0C 방전 용량 E11mAh | 10→11사이클용량 변화율% | 12사이클째 1/3C 방전 용량 E12mAh | 13사이클째 2.0C 방전 용량 E13mAh | 12→13사이클용량 변화율% | |
실시예 7 | 4.957 | 4.755 | -4.1 | 4.925 | 4.451 | -9.6 |
비교예 7 | 4.949 | 4.639 | -6.3 | 4.910 | 4.009 | -18.4 |
Claims (11)
- 케이싱,이 케이싱 내에 포함되어 있는 비수계 전해질,양극 활성 물질층을 포함하는 양극,음극 활성 물질층을 포함하는 음극, 및다공성 격리판을 포함하며,상기 양극, 음극 및 격리판이 상기 케이싱 내에 상기 전해질과 함께 작동 가능하게 수용되어 있고,상기 다공성 격리판은 상기 양극과 음극 사이에 상기 다공성 격리판의 양측 표면이 상기 양극 활성 물질층 및 음극 활성 물질층에 각각 면하도록 배치 구성되어 있는 전지로서,상기 다공성 격리판은 적어도 1층의 절연성 물질 입자 집합체층으로 이루어지고, 이 입자 집합체가 그 입자 끼리를 결합시키는 결합제를 포함하고 있고, 상기 다공성 격리판이 상기 양극 활성 물질층 및 음극 활성 물질층으로 이루어지는 군 중에서 선택되는 적어도 하나의 활성 물질층 표면에 일체화된 형태로 직접 형성되어 있고, 또한 상기 적어도 1층의 절연성 물질 입자 집합체층은 3차원 그물망 공극 구조를 가지고 있으며, 이에 따라 상기 다공성 격리판에 이온 통과가 가능한 구멍이 형성되어 있는 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 다공성 격리판의 공극률이 건조 상태에서 10 % 이상인 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 다공성 격리판이 상기 입자 집합체의 공극 이외의 요인에 기인하는 이온 전달성을 갖는 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 절연성 물질이 무기물인 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 절연성 물질이 유기물인 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 입자 집합체가 적어도 2종류의 다른 절연성 물질로 이루어지는 것을 특징으로 하는 비수계 이차 전지.
- 제1항에 있어서, 상기 다공성 격리판이 다른 입자 집합체로 각각 구성되는 적어도 2개의 층으로 이루어지는 것을 특징으로 하는 비수계 이차 전지.
- 제1 내지 7항 중 어느 한 항에 있어서, 상기 다공성 격리판이 적어도 1층의 무기 절연성 물질 입자 집합체층으로 이루어지는 제1 격리판층 및 적어도 1층의 유기 절연성 물질 입자 집합체층으로 이루어지는 제2 격리판층으로 이루어지고, 상기 제1 격리판층이 상기 양극 활성 물질층과 음극 활성 물질층 중 한쪽의 활성 물질층 표면에 일체화된 형태로 직접 형성되어 있고, 상기 제2 격리판층이 다른 활성 물질층 표면에 일체화된 형태로 직접 형성되어 있는 것을 특징으로 하는 비수계 이차 전지.
- 제1 내지 7항 중 어느 한 항에 있어서, 상기 비수계 전해질이 리튬 이온을 포함하는 것을 특징으로 하는 비수계 이차 전지.
- 제1항 내지 제7항 중 어느 한 항에 있어서, 상기 양극 활성 물질층이 망간산리튬을 포함하는 것을 특징으로 하는 비수계 이차 전지.
- (1) 양극 활성 물질층을 포함하는 양극 및 음극 활성 물질층을 포함하는 음극을 각각 제공하고,(2) 절연성 물질 입자와 상기 입자를 위한 결합제와의 혼합물을 분산매로 분산시킨 분산액을 상기 양극 활성 물질층 및 음극 활성 물질층으로 이루어지는 군으로부터 선택되는 적어도 하나의 활성 물질층의 표면에 도포하고,(3) 상기 적어도 하나의 활성 물질층의 표면에 도포한 분산액의 분산매를 증발시켜 제거하고, 상기 입자 끼리 결합제에 의해 결합되어 있는 상기 입자의 집합체층을 형성하고, 이에 따라 상기 적어도 하나의 활성 물질층의 표면에 일체화되며 그 절연성 물질 입자 집합체층 중에 3차원 그물망 공극 구조를 갖고 있는 다공성 격리판을 형성하고,(4) 이와 같이 하여 얻어진 적어도 어느 한쪽의 활성 물질층 표면에 상기 다공성 격리판을 형성시킨 상기 양극 및 음극을 케이싱 내에 수용하고, 그 때 상기 다공성 격리판을 사이에 두고 상기 양극 활성 물질층 및 음극 활성 물질층을 대향시키며, 케이싱 내의 비수계 전해질과 함께 작동 가능해지도록 배치하는 것을 특징으로 하는 비수계 이차 전지의 제조 방법.
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PCT/JP1996/002414 WO1997008763A1 (en) | 1995-08-28 | 1996-08-28 | Cell and production method thereof |
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WO2019204244A1 (en) * | 2018-04-16 | 2019-10-24 | Board Of Regents, The University Of Texas System | Electrochemical devices and methods of making and use thereof |
US11569550B2 (en) | 2019-04-05 | 2023-01-31 | EnPower, Inc. | Electrode with integrated ceramic separator |
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- 1996-08-28 JP JP51012497A patent/JP3253632B2/ja not_active Expired - Lifetime
- 1996-08-28 WO PCT/JP1996/002414 patent/WO1997008763A1/ja active IP Right Grant
- 1996-08-28 KR KR1019980700279A patent/KR100289973B1/ko not_active Expired - Fee Related
- 1996-08-28 CA CA002226366A patent/CA2226366C/en not_active Expired - Lifetime
- 1996-08-28 DE DE69637084T patent/DE69637084T2/de not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
EP0848435A1 (en) | 1998-06-17 |
DE69637084T2 (de) | 2008-02-07 |
TW411636B (en) | 2000-11-11 |
WO1997008763A1 (en) | 1997-03-06 |
EP0848435B1 (en) | 2007-05-16 |
EP0848435A4 (en) | 2004-08-04 |
JP3253632B2 (ja) | 2002-02-04 |
CA2226366C (en) | 2002-05-21 |
CN1134078C (zh) | 2004-01-07 |
CA2226366A1 (en) | 1997-03-06 |
CN1191041A (zh) | 1998-08-19 |
US6287720B1 (en) | 2001-09-11 |
KR19990028977A (ko) | 1999-04-15 |
DE69637084D1 (de) | 2007-06-28 |
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