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发明公开
CN105409040A 硅相含有物石墨复合颗粒及其制造方法 无效 - 撤回

硅相含有物石墨复合颗粒及其制造方法
摘要：
本发明的课题在于，提供能够提高锂离子二次电池等非水电解质二次电池的充放电循环特性的复合颗粒及其制造方法。本发明所述的硅相含有物石墨复合颗粒具备多个鳞片状石墨颗粒和含硅相颗粒。多个鳞片状石墨颗粒排列成层状。含硅相颗粒包含硅相和非硅相。并且，该含硅相颗粒被多个鳞片状石墨颗粒夹持。并且，由该硅相含有物石墨复合颗粒制作电极密度为1.70±0.02g/cm3的电极时，在该电极的X射线衍射图像中，“归属于(110)面的峰的强度I(110)”相对于“归属于(004)面的峰的强度I(004)”之比优选在0.0010以上且0.0300以下的范围内。
摘要（英）：

The problem of the present invention is to provide composite particles with which the charge-discharge cycle properties of a nonaqueous electrolyte secondary cell such as a lithium ion secondary cell can be improved, and a method for producing the particles. These composite particles of a silicon phase-containing substance and graphite comprise multiple scale-like graphite particles and silicon phase-containing particles. The multiple scale-like graphite particles are disposed in layers. The silicon phase-containing particles comprise a silicon phase and a non-silicon phase. Moreover, the silicon phase-containing particles are inserted between the multiple scale-like graphite particles. When an electrode having an electrode density of 1.70 +/-0.02 g/cm<3> is produced from the composite particles of a silicon phase-containing substance and graphite, the ratio of the intensity I (110) of the peak attributed to the (110) plane to the intensity I (004) of the peak attributed to the (004) plane in the X-ray diffraction image of the electrode is preferably within a range of 0.0010 to 0.0300.

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