KR101918112B1 - 리튬 전지 및 그 제조방법 - Google Patents
리튬 전지 및 그 제조방법 Download PDFInfo
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- KR101918112B1 KR101918112B1 KR1020130153192A KR20130153192A KR101918112B1 KR 101918112 B1 KR101918112 B1 KR 101918112B1 KR 1020130153192 A KR1020130153192 A KR 1020130153192A KR 20130153192 A KR20130153192 A KR 20130153192A KR 101918112 B1 KR101918112 B1 KR 101918112B1
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/136—Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
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Abstract
Description
도 1은 본 발명의 실시예에 따른 리튬 전지를 도시한 단면도이다.
도 2는 도 1의 Ⅱ영역을 확대하여 도시하였다.
도 3은 본 발명의 일 실시예에 따른 리튬 전지의 제조방법을 도시한 순서도이다.
도 4는 본 발명의 다른 실시예에 따른 리튬 전지의 제조방법을 도시한 순서도이다.
도 5는 실험예 1-1 및 비교예 1-1의 X선 회절(X-Ray Diffraction)분석결과를 나타낸 그래프이다.
도 6은 1.5 V 내지 3.0V의 전압 범위에서 실험예 2-1의 충방전 특성 평가 결과를 나타낸 그래프이다.
도 7은 1.0 V 내지 3.0V의 전압 범위에서 실험예 2-1의 충방전 특성 평가 결과를 나타낸 그래프이다.
도 8은 실험예 2-1의 충방전 횟수에 따른 용량을 도시한 그래프이다.
| 첫번째 싸이클의 용량(mAhg-1) | 쿨롱 효율(%) | ||
| 방전 용량 | 충전 용량 | ||
| 실험예 1 | 263 | 416 | 158 |
| 비교예 1 | 237 | 220 | 93 |
Claims (12)
- 전극 집전체;
상기 전극 집전체와 이격배치되는 고체 전해질층; 및
상기 전극 집전체 및 상기 고체 전해질층 사이에 개재되며,
리튬 금속 황화물을 포함하며, 상기 전극 집전체와 전기적으로 연결되는 제1 부들,
리튬 인황화물을 포함하며, 상기 고체 전해질층과 연결되는 제2 부들, 및
상기 제1 부들 및 상기 제2 부들 사이에 제공되며, 리튬, 금속, 인, 및 황을 포함하는 비정질 황화물을 포함하는 전극 활성층을 포함하는 리튬 전지.
- 제 1항에 있어서,
상기 고체 전해질은 상기 제2 부들과 동일한 물질을 포함하는 리튬 전지.
- 제 1항에 있어서,
상기 제1 부들은 상기 제2 부들과 연결되는 리튬 전지.
- 제 1항에 있어서,
상기 제1 부들은 상기 전극 활성층 내에 분산되어 제공되며, 서로 연결되는 리튬 전지.
- 리튬 인황화물 및 금속 황화물을 포함하는 혼합물을 준비하는 것;
상기 혼합물에 물리적인 압력을 가하여, 전극 복합체를 제조하되, 상기 전극 복합체는 리튬 인황화물, 리튬 금속 황화물 및 비정질 황화물을 포함하는 것;
상기 전극 복합체를 사용하여 전극 활성층을 제조하는 것;
상기 전극 활성층의 일면 상에 전극 집전체를 형성하는 것; 및
상기 전극 활성층의 타면 상에 고체 전해질층을 형성하는 것을 포함하는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 리튬 금속 황화물 및 상기 비정질 황화물은 상기 혼합물 내에 포함된 리튬 원소가 금속 황화물과 반응하여 제조되며,
상기 리튬 원소 및 상기 금속 황화물의 반응은 상기 물리적인 압력에 의하여 수행되는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 전극 복합체에 포함된 상기 리튬 인황화물은 상기 혼합물에 포함된 상기 리튬 인황화물의 일부가 반응하지 않고 남아 제공되는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 혼합물에 물리적인 압력을 가하는 것은 볼밀링 공정에 의해 수행되는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 리튬 인황화물은 Li3PS4를 포함하고,
상기 금속 황화물은 TiS2를 포함하는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 전극 활성층은:
상기 리튬 금속 황화물을 포함하며, 상기 전극 집전체와 전기적으로 연결되는 제1 부들;
상기 리튬 인황화물을 포함하며, 상기 고체 전해질층과 연결되는 제2 부들; 및
상기 제1 부들 및 상기 제2 부들 사이에 제공되며, 상기 비정질 황화물을 포함하는 리튬 전지 제조방법.
- 제 5항에 있어서,
상기 비정질 황화물은 리튬, 금속, 인, 및 황을 포함하는 리튬 전지 제조방법.
- 리튬 황화물, 인황화물, 금속, 및 황을 포함하는 혼합물을 준비하는 것;
상기 혼합물에 물리적인 압력을 가하여, 전극 복합체를 제조하되, 상기 전극 복합체는 리튬 인황화물, 리튬 금속 황화물 및 비정질 황화물을 포함하는 것;
상기 전극 복합체를 사용하여 전극 활성층을 제조하는 것;
상기 전극 활성층의 일면 상에 전극 집전체를 형성하는 것; 및
상기 전극 활성층의 타면 상에 전해질층을 형성하는 것을 포함하는 리튬 전지 제조방법.
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| Application Number | Priority Date | Filing Date | Title |
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| US14/264,804 US9379383B2 (en) | 2013-06-17 | 2014-04-29 | Lithium battery and method of preparing the same |
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| KR20130069090 | 2013-06-17 | ||
| KR1020130069090 | 2013-06-17 |
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| KR20140146990A KR20140146990A (ko) | 2014-12-29 |
| KR101918112B1 true KR101918112B1 (ko) | 2018-11-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101705267B1 (ko) * | 2015-04-13 | 2017-02-22 | 울산과학기술원 | 고체 전해질 복합체, 이의 제조방법, 및 이를 포함하는 전고체 전지 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011060649A (ja) | 2009-09-11 | 2011-03-24 | Toyota Motor Corp | 電極活物質層、全固体電池、電極活物質層の製造方法および全固体電池の製造方法 |
| US20110159365A1 (en) | 2009-05-07 | 2011-06-30 | Amprius, Inc. | Template electrode structures for depositing active materials |
| JP2012204114A (ja) | 2011-03-25 | 2012-10-22 | Idemitsu Kosan Co Ltd | リチウム二次電池電極用スラリー組成物及びそれを用いた電池 |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110159365A1 (en) | 2009-05-07 | 2011-06-30 | Amprius, Inc. | Template electrode structures for depositing active materials |
| JP2011060649A (ja) | 2009-09-11 | 2011-03-24 | Toyota Motor Corp | 電極活物質層、全固体電池、電極活物質層の製造方法および全固体電池の製造方法 |
| JP2012204114A (ja) | 2011-03-25 | 2012-10-22 | Idemitsu Kosan Co Ltd | リチウム二次電池電極用スラリー組成物及びそれを用いた電池 |
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