KR20010025117A - 양극 활물질 및 비수 전해질 이차 전지, 양극 활물질의제조 방법 - Google Patents
양극 활물질 및 비수 전해질 이차 전지, 양극 활물질의제조 방법 Download PDFInfo
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- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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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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- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
- H01M4/1397—Processes of manufacture of electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract
Description
소성 온도 | A/B | |
320℃ | 샘플 6 | 0.77 |
400℃ | 샘플 2 | 0.34 |
600℃ | 샘플 1 | 0.15 |
Claims (15)
- 화학식 LixMyPO4(여기서, x는 O<x≤2 범위이고, y는 0.8≤y≤1.2 범위이며, M은 3d 전이 금속을 함유함)로 표시되는 화합물을 함유하며,상기 LixMyPO4가 그의 입자 직경이 10 ㎛ 이하인 것을 포함하는 것을 특징으로 하는 양극 활물질.
- 제1항에 있어서, 상기 LixMyPO4의 10% 체적 누적 직경이 1 ㎛ 이하인 것을 특징으로 하는 양극 활물질.
- 제1항에 있어서, 상기 LixMyPO4의 브루나워-엠메트-텔러 비표면적이 0.5 ㎡/g 이상인 것을 특징으로 하는 양극 활물질.
- 제1항에 있어서, 상기 LixMyPO4가 LiFePO4인 것을 특징으로 하는 양극 활물질.
- 화학식 Lix(FeyM1-y)PO4(여기서, x는 0.9≤x≤1.1 범위이고, y는 0<y≤1 범위이며, M은 3d 전이 금속을 함유함)로 표시되는 화합물을 함유하며,상기 Lix(FeyM1-y)PO4는 뫼스바우어 분광법에 의해 얻어진 스펙트럼에서, 이성체 시프트값이 0.1 ㎜/sec 이상 0.7 ㎜/sec 이하의 범위에 있는 스펙트럼의 면적 강도를 A라 하고, 이성체 시프트값이 0.8 ㎜/sec 이상 1.5 ㎜/sec 이하의 범위에 있는 스펙트럼의 면적 강도를 B라 할 때, A/B가 0.3 미만인 것을 특징으로 하는 양극 활물질.
- 제5항에 있어서, Lix(FeyM1-y)PO4가 LiFePO4인 것을 특징으로 하는 양극 활물질.
- 리튬을 가역적으로 도핑/탈도핑할 수 있는, 화학식 LixMyPO4(여기서, x는 O<x≤2 범위이고, y는 0.8≤y≤1.2 범위이며, M은 3d 전이 금속을 함유함)로 표시되는 화합물을 함유하는 양극 활물질을 갖는 양극, 리튬을 가역적으로 도핑/탈도핑할 수 있는 음극 활물질을 갖는 음극 및 비수 전해질을 구비한 비수 전해질 이차 전지에 있어서,상기 LixMyPO4가 그의 입자 직경이 10 ㎛ 이하인 것을 포함하는 것을 특징으로 하는 비수 전해질 이차 전지.
- 제7항에 있어서, 상기 LixMyPO4의 10% 체적 누적 직경이 1 ㎛ 이하인 것을 특징으로 하는 비수 전해질 이차 전지.
- 제7항에 있어서, 상기 LixMyPO4의 브루나워-엠메트-텔러 비표면적이 0.5 ㎡/g 이상인 것을 특징으로 하는 비수 전해질 이차 전지.
- 제7항에 있어서, 상기 LixMyPO4가 LiFePO4인 것을 특징으로 하는 비수 전해질 이차 전지.
- 리튬을 가역적으로 도핑/탈도핑할 수 있는, 화학식 Lix(FeyM1-y)PO4(여기서, x는 0.9≤x≤1.1 범위이고, y는 0<y≤1 범위이며, M은 3d 전이 금속을 함유함)로 표시되는 화합물을 함유하는 양극 활물질을 갖는 양극, 리튬을 가역적으로 도핑/탈도핑할 수 있는 음극 활물질을 갖는 음극 및 비수 전해질을 구비한 비수 전해질 이차 전지에 있어서,상기 Lix(FeyM1-y)PO4는 뫼스바우어 분광법에 의해 얻어진 스펙트럼에서, 이성체 시프트값이 0.1 ㎜/sec 이상 0.7 ㎜/sec 이하의 범위에 있는 스펙트럼의 면적 강도를 A라 하고, 이성체 시프트값이 0.8 ㎜/sec 이상 1.5 ㎜/sec 이하의 범위에 있는 스펙트럼의 면적 강도를 B라 할 때, A/B가 0.3 미만인 것을 특징으로 하는 비수 전해질 이차 전지.
- 제11항에 있어서, Lix(FeyM1-y)PO4가 LiFePO4인 것을 특징으로 하는 비수 전해질 이차 전지.
- 화학식 LixMyPO4(여기서, x는 O<x≤2 범위이고, y는 0.8≤y≤1.2 범위이며, M은 3d 전이 금속을 함유함)로 표시되는 화합물의 합성 원료를 혼합하여 전구체를 제조하는 혼합 공정 및상기 혼합 공정에서 얻어진 상기 전구체를 소성시켜 반응시키는 소성 공정을 포함하며,상기 소성 공정에서 400℃ 이상 700℃ 이하의 범위의 온도에서 상기 전구체를 소성시키는 것을 특징으로 하는 양극 활물질의 제조 방법.
- 제13항에 있어서, 상기 소성 공정에서 400℃ 이상 600℃ 이하의 범위의 온도에서 상기 전구체를 소성시키는 것을 특징으로 하는 양극 활물질의 제조 방법.
- 제13항에 있어서, 상기 LixMyPO4가 LiFePO4인 것을 특징으로 하는 양극 활물질의 제조 방법.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9940899 | 1999-04-06 | ||
JP99-99408 | 1999-04-06 | ||
JP99-274380 | 1999-09-28 | ||
JP27438099 | 1999-09-28 | ||
JP00-14131 | 2000-01-19 | ||
JP2000014131 | 2000-01-19 |
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Publication Number | Publication Date |
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KR20010025117A true KR20010025117A (ko) | 2001-03-26 |
KR100672879B1 KR100672879B1 (ko) | 2007-01-23 |
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KR1020007013776A KR100672879B1 (ko) | 1999-04-06 | 2000-03-28 | 양극 활물질 및 비수 전해질 이차 전지, 양극 활물질의제조 방법 |
Country Status (8)
Country | Link |
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US (3) | US6632566B1 (ko) |
EP (1) | EP1094533A1 (ko) |
JP (3) | JP4749551B2 (ko) |
KR (1) | KR100672879B1 (ko) |
CN (2) | CN1174509C (ko) |
CA (1) | CA2334003A1 (ko) |
TW (1) | TW447162B (ko) |
WO (1) | WO2000060680A1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100939647B1 (ko) * | 2009-01-22 | 2010-02-03 | 한화석유화학 주식회사 | 전극 활물질인 음이온 부족형 비화학양론 리튬 전이금속 다중산 화합물, 그 제조 방법 및 그를 이용한 전기화학 소자 |
KR100981473B1 (ko) * | 2007-07-12 | 2010-09-10 | 가부시끼가이샤 도시바 | 비수전해질 전지 및 전지팩 |
KR20130086968A (ko) * | 2012-01-26 | 2013-08-05 | 소니 주식회사 | 전지, 전지 팩, 전자 기기, 전동 차량, 축전 장치 및 전력 시스템 |
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- 2000-03-28 KR KR1020007013776A patent/KR100672879B1/ko active IP Right Grant
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- 2000-03-28 JP JP2000610076A patent/JP4749551B2/ja not_active Expired - Lifetime
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KR100939647B1 (ko) * | 2009-01-22 | 2010-02-03 | 한화석유화학 주식회사 | 전극 활물질인 음이온 부족형 비화학양론 리튬 전이금속 다중산 화합물, 그 제조 방법 및 그를 이용한 전기화학 소자 |
WO2010085104A2 (ko) | 2009-01-22 | 2010-07-29 | 한화케미칼 주식회사 | 전극 활물질인 음이온 부족형 리튬 전이금속 인산화합물, 그 제조방법, 및 그를 이용한 전기화학 소자 |
WO2010085104A3 (ko) * | 2009-01-22 | 2010-12-02 | 한화케미칼 주식회사 | 전극 활물질인 음이온 부족형 리튬 전이금속 인산화합물, 그 제조방법, 및 그를 이용한 전기화학 소자 |
US7858233B2 (en) | 2009-01-22 | 2010-12-28 | Hanwha Chemical Corporation | Electrode-active anion-deficient non-stoichiometric lithium iron-phosphate, method for preparing the same, and electrochemical device using the same |
KR20130086968A (ko) * | 2012-01-26 | 2013-08-05 | 소니 주식회사 | 전지, 전지 팩, 전자 기기, 전동 차량, 축전 장치 및 전력 시스템 |
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Publication number | Publication date |
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EP1094533A1 (en) | 2001-04-25 |
WO2000060680A1 (fr) | 2000-10-12 |
CN1302460A (zh) | 2001-07-04 |
TW447162B (en) | 2001-07-21 |
US20060188782A1 (en) | 2006-08-24 |
JP2011054574A (ja) | 2011-03-17 |
CA2334003A1 (en) | 2000-10-12 |
CN1323447C (zh) | 2007-06-27 |
CN1549366A (zh) | 2004-11-24 |
JP4985640B2 (ja) | 2012-07-25 |
US20040002003A1 (en) | 2004-01-01 |
KR100672879B1 (ko) | 2007-01-23 |
JP2009120479A (ja) | 2009-06-04 |
US7217474B2 (en) | 2007-05-15 |
CN1174509C (zh) | 2004-11-03 |
US7147969B2 (en) | 2006-12-12 |
US6632566B1 (en) | 2003-10-14 |
JP4749551B2 (ja) | 2011-08-17 |
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