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    • 1. 发明授权
    • Positive electrode active material for lithium ion battery, method of producing the same, electrode for lithium ion battery, and lithium ion battery
    • 锂离子电池用正极活性物质及其制造方法,锂离子电池用电极及锂离子电池
    • US09496554B2
    • 2016-11-15
    • US14005630
    • 2012-03-14
    • Kouji OonoSatoru Oshitari
    • Kouji OonoSatoru Oshitari
    • H01M4/58H01M10/0525C01B25/45
    • H01M4/5825C01B25/45H01M10/0525Y02E60/122Y02P70/54Y02T10/7011
    • Provided is a positive electrode active material for lithium ion batteries, which may be in the form of fine particles with good crystallinity and high purity by suppressing grain growth, and which is capable of improving the charge and discharge capacity and high-rate characteristics, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries which are formed from LiMPO4 (provided that, M represents one or more kinds selected from a group consisting of Mn, Co, and Ni). In an X-ray diffraction pattern, a ratio I(020)/I(200) of the X-ray intensity I(020) of a (020) plane around a diffraction angle 2θ of 29° to the X-ray intensity I(200) of a (200) plane around a diffraction angle 2θ of 17° is 3.00 to 5.00, and a specific surface area is 15 m2/g to 50 m2/g.
    • 本发明提供一种用于锂离子电池的正极活性物质,其可以通过抑制晶粒生长而具有良好的结晶度和高纯度的微粒的形式,并且能够提高充放电容量和高速率特性, 其制造方法,锂离子电池用电极和锂离子电池。 本发明的锂离子电池用正极活性物质是由LiMPO4形成的锂离子电池用正极活性物质(M表示选自Mn,Co,Ni中的1种以上) 。 在X射线衍射图中,衍射角2θ为29°的(020)面的X射线强度I(020)与X射线强度I(20)的比I(020)/ I(200) 围绕衍射角2θ为17°的(200)面的(200)为3.00〜5.00,比表面积为15m 2 / g〜50m 2 / g。
    • 5. 发明申请
    • POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION BATTERY, METHOD OF PRODUCING THE SAME, ELECTRODE FOR LITHIUM ION BATTERY, AND LITHIUM ION BATTERY
    • 用于锂离子电池的正极电极活性材料,其制造方法,锂离子电池用电极和锂离子电池
    • US20140004425A1
    • 2014-01-02
    • US14005630
    • 2012-03-14
    • Kouji OonoSatoru Oshitari
    • Kouji OonoSatoru Oshitari
    • H01M4/58
    • H01M4/5825C01B25/45H01M10/0525Y02E60/122Y02P70/54Y02T10/7011
    • Provided is a positive electrode active material for lithium ion batteries, which may be in the form of fine particles with good crystallinity and high purity by suppressing grain growth, and which is capable of improving the charge and discharge capacity and high-rate characteristics, a production method thereof, an electrode for lithium ion batteries, and a lithium ion battery. The positive electrode active material for lithium ion batteries of the invention is a positive electrode active material for lithium ion batteries which are formed from LiMPO4 (provided that, M represents one or more kinds selected from a group consisting of Mn, Co, and Ni). In an X-ray diffraction pattern, a ratio I(020)/I(200) of the X-ray intensity I(020) of a (020) plane around a diffraction angle 2θ of 29° to the X-ray intensity 1(200) of a (200) plane around a diffraction angle 2θ of 17° is 3.00 to 5.00, and a specific surface area is 15 m2/g to 50 m2/g.
    • 本发明提供一种用于锂离子电池的正极活性物质,其可以通过抑制晶粒生长而具有良好的结晶度和高纯度的微粒的形式,并且能够提高充放电容量和高速率特性, 其制造方法,锂离子电池用电极和锂离子电池。 本发明的锂离子电池用正极活性物质是由LiMPO4形成的锂离子电池用正极活性物质(M表示从Mn,Co,Ni组成的组中选择的一种以上) 。 在X射线衍射图中,衍射角2θ为29°的(020)面的X射线强度I(020)与X射线强度1的比值(020)/ I(200) 围绕衍射角2θ为17°的(200)面的(200)为3.00〜5.00,比表面积为15m 2 / g〜50m 2 / g。