JP5197372B2 - リチウムイオンバッテリ用の正電極材料の調製方法 - Google Patents
リチウムイオンバッテリ用の正電極材料の調製方法 Download PDFInfo
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- C01G51/42—Cobaltates containing alkali metals, e.g. LiCoO2
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- C01G51/50—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese of the type [MnO2]n-, e.g. Li(CoxMn1-x)O2, Li(MyCoxMn1-x-y)O2
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Description
本実施例は、正電極材料として用いられるLiNi1/3Mn1/3Co1/3O2を調製する本発明により提供される方法を説明するために用いる。
本実施例は、正電極材料として用いられるLiNi2/5Mn2/5Co1/5O2を調製する本発明により提供される方法を説明するために用いる。
本実施例は、正電極材料として用いられるLiNi1/3Mn1/3Co1/3O2を調製する本発明により提供される方法を説明するために用いる。
本実施例は、正電極材料として用いられるLiNi2/5Mn2/5Co1/5O2を調製する本発明により提供される方法を説明するために用いる。
本実施例は、正電極材料として用いられるLiNi2/5Mn2/5Co1/5O2を調製する本発明により提供される方法を説明するために用いる。
本比較例は、第1段階の焼成後にバインダを添加せずに、正電極材料として用いられるLiNi1/3Mn1/3Co1/3O2を調製する方法を説明するために用いる。
本比較例は、第1段階の焼成後にバインダを添加せずに、正電極材料として用いられるLiNi2/5Mn2/5Co1/5O2を調製する方法を説明するために用いる。
上記実施例1〜5および比較例1〜2で調製した正電極材料のタップ密度を、BT−1000型粉末総合物性計測器(Powder Comprehensive Character Test Instrument)を用いて決定した。結果を表1に示す。
Claims (10)
- リチウムイオンバッテリ用の正電極材料として用いられるリチウム−ニッケル−マンガン−コバルト複合体酸化物の調製方法であって、
リチウム化合物及びニッケル−マンガン−コバルト水酸化物を含む混合物を、第1段階の焼成及び第2段階の焼成に供することを含み、前記第1段階の焼成後に、バインダ及び/又はバインダ溶液を添加することをさらに含み、かつ、前記バインダ及び/又はバインダ溶液と前記第1段階の焼成の生成物との混合物が、前記第2段階の焼成で焼成され、ここで、前記バインダが、ポリテトラフルオロエチレン、スチレン−ブタジエンゴム及びポリビニルアルコールからなる群から選択される、前記方法。 - 前記リチウム−ニッケル−マンガン−コバルト複合体酸化物の式が、LiNixMnyCo1−x−yO2であり、かつ、前記ニッケル−マンガン−コバルト水酸化物の式が、NixMnyCo1−x−y(OH)2(両方の式において、0.05≦x≦0.8、0.1≦y≦0.4、かつx+y≦l)である請求項1記載の方法。
- 前記第1段階の焼成の前記生成物対前記バインダの比が、重量で5:1〜40:1である請求項1記載の方法。
- 前記第1段階の焼成の前記生成物対前記バインダの比が、重量で10:1〜30:1である請求項3記載の方法。
- 前記バインダ溶液の濃度が、1〜10重量%である請求項1記載の方法。
- 前記第1段階の焼成の前記生成物が、前記バインダ及び/又はバインダ溶液を添加する前に粉末化される請求項1記載の方法。
- 前記第1段階の焼成が、450〜700℃の温度で4〜10時間行われ、かつ、前記第2段階の焼成が、750〜1100℃の温度で6〜30時間行われる請求項1記載の方法。
- 前記リチウム化合物及びニッケル−マンガン−コバルト水酸化物を含む前記混合物中における、前記リチウム化合物対前記ニッケル−マンガン−コバルト水酸化物の比が、モルで1:1〜1.2:1である請求項1記載の方法。
- 前記リチウム化合物及びニッケル−マンガン−コバルト水酸化物を含む前記混合物の調製方法が、前記リチウム化合物を溶媒に溶解させること、前記ニッケル−マンガン−コバルト水酸化物を添加すること、攪拌して均一に混合すること、及び前記溶媒をゆっくりと除去して前記リチウム化合物を再結晶化することを含む請求項8記載の方法。
- 前記リチウム化合物が、炭酸リチウム、硝酸リチウム、水酸化リチウム、水酸化リチウム水和物、シュウ酸リチウム及び酢酸リチウムからなる群から選択される請求項1、8及び9いずれか1項記載の方法。
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Application Number | Priority Date | Filing Date | Title |
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CN200510114482.4 | 2005-10-27 | ||
CNB2005101144824A CN100527480C (zh) | 2005-10-27 | 2005-10-27 | 锂离子电池正极材料锂镍锰钴氧的制备方法 |
PCT/CN2006/000316 WO2007048283A1 (en) | 2005-10-27 | 2006-03-03 | A process for preparing a positive electrode material for lithium ion battery |
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JP2009512988A JP2009512988A (ja) | 2009-03-26 |
JP5197372B2 true JP5197372B2 (ja) | 2013-05-15 |
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US (1) | US7887721B2 (ja) |
EP (1) | EP1941567B1 (ja) |
JP (1) | JP5197372B2 (ja) |
KR (1) | KR101015279B1 (ja) |
CN (1) | CN100527480C (ja) |
WO (1) | WO2007048283A1 (ja) |
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CN114551780B (zh) * | 2022-01-27 | 2023-11-24 | 南京邮电大学 | 一种表面贫锂、贫钠或贫钾的正极材料及其等离子体增强烧结方法与应用 |
CN116789184A (zh) * | 2023-07-12 | 2023-09-22 | 科立鑫(珠海)新能源有限公司 | 一种生产氧化亚钴的绿色环保工艺 |
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JP2009512988A (ja) | 2009-03-26 |
CN100527480C (zh) | 2009-08-12 |
EP1941567B1 (en) | 2012-11-14 |
WO2007048283A1 (en) | 2007-05-03 |
US7887721B2 (en) | 2011-02-15 |
KR20080059335A (ko) | 2008-06-26 |
KR101015279B1 (ko) | 2011-02-15 |
US20090146115A1 (en) | 2009-06-11 |
EP1941567A1 (en) | 2008-07-09 |
EP1941567A4 (en) | 2011-06-08 |
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