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材料研究学报  2008, Vol. 22 Issue (3): 312-316    
  论文 本期目录 | 过刊浏览 |
非晶碳纳米管新型锂离子电池负极材料
王振旭;魏学东;赵廷凯; 柳永宁
西安交通大学材料科学与工程学院
Amorphous Carbon Nanotubes As Anode Material For Lithium Ion Batteries
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西安交通大学材料科学与工程学院
引用本文:

王振旭; 魏学东; 赵廷凯; 柳永宁 . 非晶碳纳米管新型锂离子电池负极材料[J]. 材料研究学报, 2008, 22(3): 312-316.
, , , . Amorphous Carbon Nanotubes As Anode Material For Lithium Ion Batteries[J]. Chin J Mater Res, 2008, 22(3): 312-316.

全文: PDF(809 KB)  
摘要: 研究了非晶碳纳米管作为锂离子电池负极材料的电化学行为以及氧化处理对其嵌锂容量的影响.结果表明: 在20 mA×g-1的充放电条件下,原始非晶碳纳米管首次可逆容量为305 mAh×g-1;在300-450℃氧化处理后, 非晶碳纳米管中的氧和氢氧根中和了管壁中的大量不饱和键,非晶碳纳米管中死锂的位置减少, 纯度提高, 嵌锂可逆容量增加.在300℃氧化处理的非晶碳纳米管首次可逆容量最高可达533 mAh×g-1,并有良好的循环寿命.
关键词 无机非金属材料锂离子电池负极材料    
Abstract:The paper studied electrochemical performances of amorphous carbon nanotubes (ACNTs) as anode materials of lithium ion battery. The results indicate that as-grown ACNTs possess the initial reversible capacity 305mAh/g under the charge-discharge condition of 20mA/g The oxidization treatment at the temperature range of 300~450℃ increases the capacity of Li intercalation due to decreasing nanoparticles and amorphous carbon and improving the surface activation of ACNTs. The first reversible capacity of ACNTs oxidized at 300℃ is up to 530mAh/g and the cycle life is well.
Key words
收稿日期: 2007-06-21     
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