KR102111899B1 - 전극의 제조 방법 - Google Patents
전극의 제조 방법 Download PDFInfo
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- KR102111899B1 KR102111899B1 KR1020197030940A KR20197030940A KR102111899B1 KR 102111899 B1 KR102111899 B1 KR 102111899B1 KR 1020197030940 A KR1020197030940 A KR 1020197030940A KR 20197030940 A KR20197030940 A KR 20197030940A KR 102111899 B1 KR102111899 B1 KR 102111899B1
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- graphene
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- material particles
- electrode
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 18
- 229910052744 lithium Inorganic materials 0.000 description 18
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 18
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- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
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- VEPSWGHMGZQCIN-UHFFFAOYSA-H ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 2
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- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- ILXAVRFGLBYNEJ-UHFFFAOYSA-K lithium;manganese(2+);phosphate Chemical compound [Li+].[Mn+2].[O-]P([O-])([O-])=O ILXAVRFGLBYNEJ-UHFFFAOYSA-K 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
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- 239000013618 particulate matter Substances 0.000 description 1
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- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- 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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- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
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- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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Abstract
Description
도 2a는 종래의 도전 보조제(아세틸렌 블랙 입자)와 활성 물질 입자의 단면 모식도이고, 도 2b는 그의 SEM 이미지이다.
도 3a는 가열에 의한 산화 그래핀의 중량 변화 및 시차열 변화를 도시하고, 도 3b는 이산화탄소의 방출량을 도시한다.
도 4는 가열에 의한 산화 그래핀의 적외 분광 스펙트럼의 변화를 도시한다.
도 5는 이차 전지의 예를 나타낸다.
도 6a 및 도 6b는 실시예에서 제조한 전극의 단면 SEM 이미지이다.
도 7a는 실시예에서 제조한 전극의 단면 SEM 이미지이고, 도 7b는 그래핀을 도시하는 도면이다.
도 8은 실시예에서 제조한 리튬 이차 전지의 특성을 도시한다.
도 9는 실시예에서 제조한 리튬 이차 전지의 특성을 도시한다.
도 10은 축전 장치의 응용 예를 나타낸다.
102: 부극 활성 물질층
104: 부극
106: 하우징
110: 세퍼레이터
120: 링 형상 절연체
128: 정극 집전체
130: 정극 활성 물질층
132: 정극
140: 스페이서
142: 와셔
144: 하우징
201: 표시 장치
202: 하우징
203: 표시부
204: 스피커부
205: 축전 장치
211: 조명 장치
212: 하우징
213: 광원
214: 축전 장치
215: 천장
216: 측벽
217: 바닥
218: 창
221: 실내기
222: 하우징
223: 송풍구
224: 축전 장치
225: 실외기
231: 전기 냉동 냉장고
232: 하우징
233: 냉장실용 도어
234: 냉동실용 도어
235: 축전 장치
Claims (9)
- 전극으로서,
집전체 위의 활성 물질층을 포함하고,
상기 활성 물질층은,
활성 물질 입자들; 및
복수의 탄소 시트로서, 각각이 탄소 시트 각각의 복수의 부분에서 서로 화학적 결합을 갖는, 상기 복수의 탄소 시트를 포함하고,
탄소 시트 각각의 상기 복수의 부분은 상기 활성 물질 입자들의 일부를 둘러싸는 공간을 형성하고,
각각이 서로 화학적 결합을 갖는 상기 복수의 탄소 시트는 상기 활성 물질 입자들의 상이한 부분들을 둘러싸는, 전극. - 전극으로서,
집전체 위의 활성 물질층을 포함하고,
상기 활성 물질층은,
정극 활성 물질을 포함하는 활성 물질 입자들; 및
복수의 탄소 시트로 이루어지고,
상기 활성 물질층은 바인더를 포함하지 않고,
상기 복수의 탄소 시트는 복수의 공간을 형성하고, 상기 복수의 공간 각각은 상기 활성 물질 입자들의 일부를 둘러싸는, 전극. - 전극으로서,
집전체 위의 활성 물질층을 포함하고,
상기 활성 물질층은,
정극 활성 물질을 포함하는 활성 물질 입자들; 및
복수의 탄소 시트로 조성되고,
상기 활성 물질층은 바인더를 포함하지 않고,
상기 복수의 탄소 시트는 복수의 공간을 형성하고, 상기 복수의 공간 각각은 상기 활성 물질 입자들의 일부를 둘러싸는, 전극. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 활성 물질층은 상기 활성 물질 입자들 및 상기 복수의 탄소 시트로 구성되는, 전극. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 활성 물질층 전체에 대한 상기 활성 물질 입자들의 중량비는 97% 이상인, 전극. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 활성 물질층은 고분자 유기 화합물을 포함하지 않는, 전극. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 활성 물질 입자들의 표면들은 탄소 막으로 각각 코팅되는, 전극. - 제1항 내지 제3항 중 어느 한 항에 있어서,
상기 복수의 탄소 시트는 환원된 산화 그래핀인, 전극. - 축전 장치로서,
제1항 내지 제3항 중 어느 한 항에 따른 전극을 포함하는, 축전 장치.
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