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中文摘要：
对中间相炭微球（MCMB）进行改性，以改性MCMB（M．MCMB）为基体、柠檬酸为碳源，由化学还原法、球磨法及热裂解工艺制得SnSbCu05／M—MCMB／C复合材料。用XRD、SEM及恒流充放电等方法研究样品、纯SnSbCu05合金和SnSbCu0．5／M．MCMB负极材料。SnSbCu0.5／M-MCMB／C复合材料可缓解纯SnSbCu0.5，合金的体积膨胀效应，提高循环稳定性。以100mA／g在0.01～2.00V循环，首次放电比容量为648．51mAh／g，库仑效率为74．55％，第80次循环的容量保持率为80．26％。
英文摘要：
Mesocarbon microbead （MCMB） was modified. Via chemical reduction method, ball-milling method and thermal cracking method with modified MCMB （M-MCMB） as matrix and citric acid as carbon source, SnSbCuo.s/M-MCMB/C composite was synthesized. XRD, SEM and galvanostatic charge-discharge analyses were used to study the samples, pure SnSbCuo.5 and SnSbCu0.5/M-MCMB. SnSbCu0.5M-MCMB/C composite could reduce the volume expasnsion effect and improve the cycle stability. When cycled in 0. 01 -2. 00 V with 100 mA/g, the initial specific discharge capacity was 648. 51 mAh/g, the coulombic efficiency was 74. 55% ,the capacity retention in the 80th cycle was 80. 26%.
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