MANUFACTURING METHOD OF SMALL PARTICLE SIZED NICKEL-LITHIUM METAL COMPOSITE OXIDE POWDER

To provide a method of manufacturing a positive electrode active material for a lithium-ion battery having no aggregation after firing and requiring no crushing.SOLUTION: The manufacturing method of a nickel-lithium metal composite oxide powder uses lithium carbonate as a lithium source, and include...

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Hauptverfasser:	FUKUURA TOMOMI, ISHIGURO HIROKI, NISHIMURA MIWAKO, ISHIZUKA HIROAKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	To provide a method of manufacturing a positive electrode active material for a lithium-ion battery having no aggregation after firing and requiring no crushing.SOLUTION: The manufacturing method of a nickel-lithium metal composite oxide powder uses lithium carbonate as a lithium source, and includes a step 1 of obtaining a mixture and a step 2 of obtaining a fired product. The nickel-lithium metal composite oxide powder comprises a nickel lithium metal composite oxide represented by the formula (1): LiaNi1-x-yCoxMyOb. D0.001 represents 0.8 μm to 3.0 μm, D10 represents 2.0 μm to 5.0 μm, D50 represents 2.0 μm to 6.5 μm, D90 represents 5.5 μm to 12.0 μm, and D100 represents 10.0 μm to 20.0 μm.SELECTED DRAWING: None 【課題】焼成後に凝集がなく解砕の必要が無いリチウムイオン電池用正極活物質の製造方法の提供。【解決手段】リチウム源として炭酸リチウムを使用し、混合物を得る工程１と焼成物を得る工程２とを含む、Ｄ０．００１で０．８μｍ〜３．０μｍ、Ｄ１０で２．０μｍ〜５．０μｍ、Ｄ５０で２．０μｍ〜６．５μｍ、Ｄ９０で５．５μｍ〜１２．０μｍ、及びＤ１００で１０．０μｍ〜２０．０μｍを示し、式（１）：ＬｉａＮｉ１−ｘ−ｙＣｏｘＭｙＯｂで表されるニッケルリチウム金属複合酸化物からなる、ニッケルリチウム金属複合酸化物粉体の製造方法。【選択図】なし