JP4009624B2 - リチウム二次電池用正極材料及びその製造方法 - Google Patents
リチウム二次電池用正極材料及びその製造方法 Download PDFInfo
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- JP4009624B2 JP4009624B2 JP2004237632A JP2004237632A JP4009624B2 JP 4009624 B2 JP4009624 B2 JP 4009624B2 JP 2004237632 A JP2004237632 A JP 2004237632A JP 2004237632 A JP2004237632 A JP 2004237632A JP 4009624 B2 JP4009624 B2 JP 4009624B2
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- 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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- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
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- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
- C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
- C01G45/1228—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [MnO2]n-, e.g. LiMnO2, Li[MxMn1-x]O2
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- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- C01P2006/00—Physical properties of inorganic compounds
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- H—ELECTRICITY
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- 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
- H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Battery Electrode And Active Subsutance (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
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Description
(1)組成がLi[Li0.30Cr0.10Ti0.07Mn0.53]O2である場合、リチウムヒドロキシド11.13g、マンガンアセテートテトラハイドレート6.39g、クロムアセテートヒドロキシド74.33g、チタン酸化物1.08g。
(2)組成がLi[Li0.27Cr0.20Ti0.07Mn0.46]O2である場合、リチウムヒドロキシド10.87g、マンガンアセテートテトラハイドレート3.12g、クロムアセテートヒドロキシド78.67g、チタン酸化物1.08g。
(3)組成がLi[Li0.30Cr0.10Ti0.10Mn0.50]O2である場合、リチウムヒドロキシド11.13g、マンガンアセテートテトラハイドレート4.89g、クロムアセテートヒドロキシド74.33g、チタン酸化物1.61g。
(4)組成がLi[Li0.32Cr0.05Ti0.03Mn0.60]O2である場合、リチウムヒドロキシド11.27g、マンガンアセテートテトラハイドレート9.69g、クロムアセテートヒドロキシド72.17g、チタン酸化物0.54g。
Claims (9)
- 一般式Li[Li(1−x)/3CrxTi(2/3)yMn2(1−x−y)/3]O2(ここで、0<x<0.3、0<y<0.3、0.1≦x+y≦0.3である)と表示されるリチウム−クロム−チタン−マンガン系酸化物であることを特徴とするリチウム二次電池用正極材料。
- チタン酸化物が浮遊したクロムアセテートヒドロキシド及びマンガンアセテートテトラハイドレートの第1混合液を製造する段階と、
前記第1混合液にリチウムヒドロキシド水溶液を添加して均一な沈殿を形成する段階と、
前記均一な沈殿を加熱してLi[Li(1−x)/3CrxTi(2/3)yMn2(1−x−y)/3]O2(0<x<0.3、0<y<0.3、0.1≦x+y≦0.3)組成の母体酸化物粉末を形成する段階と、
前記母体酸化物粉末を熱処理して層状構造を有する酸化物粉末を形成する段階と
を含むことを特徴とするリチウム二次電池用正極材料の製造方法。 - 前記母体酸化物粉末を形成する段階は、前記均一な沈殿をホットプレートで加熱して燃焼させる段階を含むことを特徴とする請求項2に記載のリチウム二次電池用正極材料の製造方法。
- 前記沈殿をホットプレートで加熱する段階は、前記均一な沈殿をチタンホイルにコーティングした状態で行われることを特徴とする請求項3に記載のリチウム二次電池用正極材料の製造方法。
- 前記母体酸化物粉末を熱処理する段階は、
前記母体酸化物粉末を650〜700℃の範囲で選択される第1温度で1次熱処理する段階と、
前記1次熱処理された酸化物粉末を前記第1温度より高い第2温度で2次熱処理する段階と
を含むことを特徴とする請求項2に記載のリチウム二次電池用正極材料の製造方法。 - 前記第2温度は、900〜1000℃の範囲内で選択されることを特徴とする請求項5に記載のリチウム二次電池用正極材料の製造方法。
- 前記2次熱処理を行う前に前記1次熱処理された酸化物粉末を粉砕する段階をさらに含むことを特徴とする請求項5に記載のリチウム二次電池用正極材料の製造方法。
- 前記2次熱処理は、空気中で行われることを特徴とする請求項5に記載のリチウム二次電池用正極材料の製造方法。
- 前記2次熱処理された酸化物粉末を急速冷却させる段階をさらに含むことを特徴とする請求項5に記載のリチウム二次電池用正極材料の製造方法。
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KR1020030066949A KR100564748B1 (ko) | 2003-09-26 | 2003-09-26 | 리튬 이차전지용 양극 재료 및 그 제조 방법 |
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JP2005108818A JP2005108818A (ja) | 2005-04-21 |
JP4009624B2 true JP4009624B2 (ja) | 2007-11-21 |
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US (1) | US7157072B2 (ja) |
JP (1) | JP4009624B2 (ja) |
KR (1) | KR100564748B1 (ja) |
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KR101430615B1 (ko) * | 2007-09-19 | 2014-08-14 | 삼성에스디아이 주식회사 | 캐소드 및 이를 채용한 리튬 전지 |
KR101017079B1 (ko) * | 2007-11-07 | 2011-02-25 | 한국과학기술연구원 | 전극활물질의 제조방법과 이에 의하여 제조된 전극활물질을포함하는 리튬전지 |
JP2012204291A (ja) * | 2011-03-28 | 2012-10-22 | Tokyo Univ Of Science | リチウムイオン二次電池およびこれに用いる正極材料 |
FR2996562B1 (fr) * | 2012-10-04 | 2019-11-01 | Renault S.A.S | Dispositif de traitement thermique et procede de traitement thermique correspondant |
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JP3707744B2 (ja) * | 1995-05-19 | 2005-10-19 | 日本化学工業株式会社 | リチウム複合酸化物の製造方法 |
CA2240805C (en) * | 1997-06-19 | 2005-07-26 | Tosoh Corporation | Spinel-type lithium-manganese oxide containing heteroelements, preparation process and use thereof |
ATE225755T1 (de) * | 1998-11-20 | 2002-10-15 | Fmc Corp | Dotierte lithium-mangan-mischoxide und verfahren zur herstellung derselben |
JP3446639B2 (ja) * | 1998-12-10 | 2003-09-16 | 松下電器産業株式会社 | リチウム二次電池用正極活物質の製造方法およびリチウム二次電池 |
US6753110B1 (en) * | 1999-10-08 | 2004-06-22 | National Research Council Of Canada | Cathode active material for lithium electrochemical cells |
JP3503688B2 (ja) * | 1999-12-27 | 2004-03-08 | 株式会社ユアサコーポレーション | リチウム二次電池 |
WO2001092158A1 (fr) * | 2000-05-30 | 2001-12-06 | Seimi Chemical Co., Ltd. | Oxyde composite de metal de transition de lithium |
US6680143B2 (en) | 2000-06-22 | 2004-01-20 | The University Of Chicago | Lithium metal oxide electrodes for lithium cells and batteries |
US6677082B2 (en) | 2000-06-22 | 2004-01-13 | The University Of Chicago | Lithium metal oxide electrodes for lithium cells and batteries |
JP3500424B2 (ja) * | 2000-08-31 | 2004-02-23 | 独立行政法人産業技術総合研究所 | 単相リチウムフェライト系複合酸化物 |
JP2002151070A (ja) * | 2000-11-06 | 2002-05-24 | Japan Storage Battery Co Ltd | 非水電解質二次電池 |
JP4086654B2 (ja) * | 2000-11-16 | 2008-05-14 | 日立マクセル株式会社 | リチウム含有複合酸化物およびその製造方法、並びに非水二次電池 |
US6964828B2 (en) | 2001-04-27 | 2005-11-15 | 3M Innovative Properties Company | Cathode compositions for lithium-ion batteries |
JP4882160B2 (ja) * | 2001-04-27 | 2012-02-22 | 堺化学工業株式会社 | リチウムイオン二次電池とそのための正極活物質 |
US6960335B1 (en) * | 2001-09-20 | 2005-11-01 | Nanopowder Enterprises Inc | Nanostructured and layered lithium manganese oxide and method of manufacturing the same |
US6713037B2 (en) * | 2001-09-28 | 2004-03-30 | Nanox, Inc. | Process for synthesizing noncrystalline lithium based mixed oxides by high energy milling |
US8658125B2 (en) | 2001-10-25 | 2014-02-25 | Panasonic Corporation | Positive electrode active material and non-aqueous electrolyte secondary battery containing the same |
JP4106651B2 (ja) * | 2002-04-04 | 2008-06-25 | ソニー株式会社 | リチウム二次電池用の正極材料およびその製造方法、並びにそれを用いたリチウム二次電池 |
KR100449073B1 (ko) * | 2002-10-15 | 2004-09-18 | 한국전자통신연구원 | 리튬 이차 전지용 양극 활물질 및 그 제조 방법 |
KR100467325B1 (ko) * | 2002-11-29 | 2005-01-24 | 한국전자통신연구원 | 리튬 이차전지용 층상 구조의 리튬-크롬-망간계 산화물의제조 방법 |
KR100564744B1 (ko) * | 2003-05-07 | 2006-03-27 | 한국전자통신연구원 | 리튬 이차전지용 리튬-코발트-망간계 산화물 및 그 제조방법 |
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JP2005108818A (ja) | 2005-04-21 |
KR20050030459A (ko) | 2005-03-30 |
US20050069772A1 (en) | 2005-03-31 |
US7157072B2 (en) | 2007-01-02 |
KR100564748B1 (ko) | 2006-03-27 |
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