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用机械球磨法制备的C／Al、C／Si复合材料可作为镀离子电池的负极活性物质．研究结果表明，C_（0．7）Al_（0．3）和C_（0．8）Si_（0．2）（原子比）分别可以放出406mAh／g、和1039mAh／g的容量，远超过了原料碳的容量284mAh／g．经10次充放电循环、C_（0．7），Al_（0．3）放电容量衰退至251mAh／g．经20次充放电循环后C_（0．8）Si_（0．2）放电容量仍保持为749mAh／g．容量衰退主要是复合材料中包嵌入Al和Si部分容量衰退较快所致．
The C / Al and C / Si composites prepared by mechanical ball milling can be used as the negative active material of the plating ion battery. The results show that the C_ (0.7) Al_ (0.3) and C_ (0.8) Si_ (0.2) (atomic ratio) can release 406mAh / g and 1039mAh / g respectively, Raw material carbon capacity of 284mAh / g. After 10 charge and discharge cycles, the discharge capacity of C_ (0.7) and Al_ (0.3) declined to 251mAh / g. After 20 cycles of charging and discharging, the discharge capacity of C_ (0.8) Si_ (0.2) remained at 749mAh / g. The capacity decline is mainly caused by the rapid decline of the capacity of Al and Si embedded in the composite material.