稻壳制备锂离子电池负极材料的研究  

Study on anode materials prepared from rice husks for lithium ion batteries

作　　者：郝婕[1] 周德凤[1] 马越[1] 谢海明[1] 苏忠民[1] 王荣顺[1] 

机构地区：[1]东北师范大学化学学院,吉林长春130024

出　　处：《东北师大学报（自然科学版）》2005年第1期67-71,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(29804002;20274006)

摘　　要：　研究了升温速率、热解温度、碱浓度对稻壳制备锂离子电池负极材料的结构和电化学性能的影响.利用差热-热重(DT-TGA)分析、元素分析、X射线衍射(XRD)等测试手段对不同条件处理后的炭材料进行表征,通过电化学分析其充、放电性能.结果表明:该材料属于无定形炭材料,首次充电容量为678 0mA·h/g,首次放电容量为239 0mA·h/g,十次循环以后容量基本稳定,可逆容量保持在206 1mA·h/g左右.The influence under various conditions on the electrochemical properties of carbon materials prepared from rice husk was investigated.The effect on temperature-increasing rate,pyrolysis temperature and alkali concentration for rice husks.The sample was characterised by differential thermal-thermogravimetric analysis (DT-TGA),element analysis and powder X-ray diffraction (XRD) and analyzed by electrochemical measurements.The material was disordered carbon and the first discharge specific capacity could be 678.0 mA·h/g and charge specific capacity could be 239.0 mA·h/g.The capacity was basically stable after ten recycle and had reversible capacity of 206.1 mA·h/g.

关 键 词：稻壳 锂离子电池 负极材料 

分 类 号：O646.21[理学—物理化学]