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    CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND METHOD FOR PRODUCING SAME
    1.
    发明公开
    CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND METHOD FOR PRODUCING SAME 审中-公开
    含碳材料与非水电解质法二次电池的负极及其制造

    公开(公告)号：EP2894702A1

    公开(公告)日：2015-07-15

    申请号：EP13835914.6

    申请日：2013-08-30

    申请人： Kureha Corporation ,  Kureha Battery Materials Japan Co. Ltd.

    发明人： KOMATSU, Mayu ,  EBIHARA, Yasushi ,  WAKAHOI, Takashi ,  TADA, Yasuhiro ,  SONOBE, Naohiro ,  SUZUKI, Mao ,  OKADA, Kayoko ,  HATAMOCHI, Akitoshi ,  IMAJI, Makoto ,  IKEYAMA, Yasufumi ,  KOBAYASHI, Shota

    IPC分类号： H01M4/587 ,  C01B31/02 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567

    CPC分类号： H01M4/587 ,  B01D11/02 ,  C01B32/05 ,  H01M4/622 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2220/20 ,  H01M2300/0025 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

    摘要： The object of the present invention is to provide a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery which uses a plant-derived organic material as a raw material, has high purity so that alkali metals such as the potassium element and alkali earth metals such as the calcium element are sufficiently removed by de-mineral treatment, and has excellent discharge capacity and efficiency, a novel manufacturing method capable of efficiently mass-producing the carbonaceous material, and a lithium ion secondary battery using the carbonaceous material.
    The problem described above can be solved by a carbonaceous material for an anode of a nonaqueous electrolyte secondary battery obtained by carbonizing a plant-derived organic material, the atom ratio (H/C) of hydrogen atoms and carbon atoms according to elemental analysis being at most 0.1, the average particle size Dv 50 being from 2 to 50 µm, the average interlayer spacing of the 002 planes determined by powder X-ray diffraction being from 0.365 nm to 0.400 nm, the potassium element content being at most 0.5 mass%, and the calcium element content being at most 0.02 mass%.

    摘要翻译： 本发明的目的是在其中采用的是来自植物的有机材料作为原料的非水电解质二次电池的阳极提供一种用于碳质材料，具有高纯度所以没有碱金属：如钾元素和碱土金属 ：如钙元素是足够通过去矿物处理除去，并具有优异的放电容量和效率，能大规模生产高效的碳质材料的制造新颖方法，以及使用该碳材料的锂离子二次电池。 上述问题可以通过碳质材料在通过碳化植物来源的有机材料的氢原子和碳原子雅鼎的，原子比（H / C），以元素分析为在获得的非水电解质二次电池的阳极可以解决 最多0.1，平均粒径Dv的50 2至50微米是，通过粉末X射线衍射从0.365纳米到0.400纳米而确定的002面的平均层间距，钾元素的含量为至多0.5质量％， 和钙元素的含量为至多00:02质量％以下。