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    • 2. 发明专利
    • Titanium oxide compound for electrode, and lithium secondary battery using the same
    • 电极用氧化钛化合物及使用其的锂二次电池
    • JP2010140863A
    • 2010-06-24
    • JP2008318538
    • 2008-12-15
    • Titan Kogyo Kkチタン工業株式会社
    • NAKAHARA KIYOSHISEKI TOSHIMASA
    • H01M4/48C01G23/00
    • H01M4/485C01G23/00C01G23/005C01G23/0532C01P2002/72C01P2006/12C01P2006/40H01M10/052
    • PROBLEM TO BE SOLVED: To manufacture a titanium oxide compound with a controlled crystal structure, crystallite diameter, specific surface area and primary particle size so as to increase electric capacity of a lithium secondary battery using a titanium-based negative electrode material; and to provide a lithium secondary battery using the same.
      SOLUTION: The lithium secondary battery is manufactured by employing the titanium oxide compound for an electrode as an electrode active material. The titanium oxide compound is represented by formula as TiO
      2 -(H
      2 O)
      a -(A
      2 O)
      b , having a main peak at 2θ=20 to 30° and a sub peak at 2θ=45 to 55° in an X-ray diffraction pattern, with the crystallite diameter obtained at the main peak in the range of 40 Å to 500 Å. For further information, A in the formula is Na or K, (a) satisfies a relation of 0
    • 要解决的问题:制造具有受控晶体结构,微晶直径,比表面积和一次粒径的二氧化钛化合物,以增加使用钛基负极材料的锂二次电池的电容; 并提供使用其的锂二次电池。 解决方案:通过使用电极用氧化钛化合物作为电极活性物质来制造锂二次电池。 氧化钛化合物由式表示为TiO 2 SB(2)/(SBB)2(SBB)2(SBB) O) b ,在X射线衍射图中,在2θ= 20〜30°处具有主峰,在2θ= 45〜55°的副峰,在主峰处获得的微晶直径 在40Å至500Å范围内。 详细说明,式中的A为Na或K,(a)满足0