The structures and characteristics of several graphite samples are measured by means of powder x - ray diffraction ( xrd ) , brunauer - emmer - teller ( bet ) surface area measurement , inductively coupled plasma ( icp ) spectroscopy , particle size analysis and electrochemical measurements . the effects of origin , structure , impurity , particle size , specific surface area of carbon materials on the electrochemical characteristics are studied . a synthetic graphite with abundant resources , low cost and favorable performance is determined as the raw material for modification of graphite 采用xrd 、 bet 、 icp 、激光粒径分析及电化学性能测试等方法，对国内外多种典型石墨样品的结构与性能进行比较，研究石墨材料的来源、晶体结构、杂质含量、颗粒大小、比表面积等因素对其充放电性能的影响，确定一种性能较好、价格低廉、来源广泛的普通人造石墨粉作为热处理与掺杂改性、以及复合结构炭材料研究的原材料。
