| C_(1-x)M_x(M=Al,Si,x=0.1～0.3)复合材料的电化学嵌锂特性 |
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| 引用本文： | 肖彦,田丽,马耀武,吴国涛,王春生.C_(1-x)M_x(M=Al,Si,x=0.1～0.3)复合材料的电化学嵌锂特性[J].佳木斯大学学报,1998(1). |
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| 作者姓名： | 肖彦 田丽 马耀武 吴国涛 王春生 |
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| 作者单位： | 佳木斯大学工学院(肖彦，田丽)，佳木斯热力公司(马耀武)，浙江大学物理系(吴国涛，王春生) |
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| 基金项目： | 国家自然科学基金!No 59502005 |
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| 摘 要： | 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．
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| 关 键 词： | 机械球磨 锂离子二次电池 碳复合材料 |
ELECTROCHEMICAL CHARACTERISTICS OF LITHIUM INSERTION INTO C/M1 (M=Al, Si) COMPOSITE MATERIALS |
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| Xiao Yan, Tianli ,Wu Gfutao, Wang Chunsheng.ELECTROCHEMICAL CHARACTERISTICS OF LITHIUM INSERTION INTO C/M1 (M=Al, Si) COMPOSITE MATERIALS[J].Journal of Jiamusi University(Natural Science Edition),1998(1). |
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| Authors: | Xiao Yan Tianli Wu Gfutao Wang Chunsheng |
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| Abstract: | C/M (M = Al, Si)l composite materials which act as anedes of lithiumion batteries have been preduced by ball milling. The reversible specific capacities of C Ab. 3(a/o) and C0.8,Si.., (a/0) are 406 and 1O39 mAh/g respectively, which is much higher thanthat of pristine carbon(284 mAh/g). After 1O charge/discharge cycles, the reversible capac-ities of C0.8.,Ab.,degrade to 251 mAh/g. However even after 20 charge/discharge cycles, thecapadty is still remained at 794 mAh/g, which suggest that this material is promising anodefor Li ion cell. |
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| Keywords: | ball milling lithium ion battery composite materials |
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