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    CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME
    2.
    发明申请
    CARBONACEOUS MATERIAL FOR NEGATIVE ELECTRODES OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND METHOD FOR PRODUCING SAME 有权
    非水电解质二次电池负极的碳质材料及其制造方法

    公开(公告)号：US20160064735A1

    公开(公告)日：2016-03-03

    申请号：US14424903

    申请日：2013-08-30

    申请人： KUREHA CORPORATION ,  KURARAY CO., LTD. ,  KURARAY CHEMICAL CO., LTD.

    发明人： Yasuhiro TADA ,  Yasushi EBIHARA ,  Mayu KOMATSU ,  Jiro MASUKO ,  Hajime KOMATSU ,  Naohiro SONOBE ,  Junichi ARIMA ,  Akimi OGAWA ,  Shinya TAGO ,  Kenichi KOYAKUMARU ,  Hideharu IWASAKI ,  Kiyoto OTSUKA

    IPC分类号： H01M4/587 ,  H01M4/133 ,  C01B31/02

    CPC分类号： H01M4/587 ,  C01B32/05 ,  H01M4/133 ,  H01M2004/027 ,  H01M2220/20

    摘要： The object of the present invention is to provide a manufacturing method of carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries, wherein the carbonaceous material is obtained from plant-derived char as a source, potassium is sufficiently removed, and an average particle diameter thereof is small; and a carbonaceous material for a negative electrode of non-aqueous electrolyte secondary batteries.The object can be solved by a method for manufacturing a carbonaceous material having an average particle diameter of 3 to 30 μm, for a negative electrode of non-aqueous electrolyte secondary batteries comprising the steps of: (1) heating plant-derived char having an average particle diameter of 100 to 10000 μm at 500° C. to 1250° C. under an inert gas atmosphere containing halogen compound to demineralize in a gas-phase, (2) pulverizing a carbon precursor obtained by demineralization in a gas-phase, (3) calcining the pulverized carbon precursor at 1000° C. to 1600° C. under an non-oxidizing gas atmosphere.

    摘要翻译： 本发明的目的是提供一种非水电解质二次电池用负极碳质材料的制造方法，其特征在于，所述碳质材料以植物来源的炭源为源，钾被充分除去， 其粒径小; 以及非水电解质二次电池的负极用碳质材料。 该目的可以通过一种非水电解质二次电池的负极制造平均粒径为3〜30μm的碳质材料的方法来解决，其特征在于，包括以下步骤：（1）加热具有 平均粒径为100〜10000μm，在含有卤素化合物的惰性气体气氛下，在气相中脱矿质，（2）粉碎气相中脱矿质得到的碳前体， （3）在非氧化气体气氛下，在1000℃〜1600℃下煅烧粉碎碳前体。