硼化酚醛树脂炭材料的制备及嵌锂性能  

Preparation of Boron-doped Carbon Materials and Their Lithium-intercalation Performance

作　　者：周德凤[1] 李晓路[1] 赵宝华[1] 王荣顺[2] 

机构地区：[1]长春工业大学生物工程学院,吉林长春130012 [2]东北师范大学化学学院功能材料化学研究所,吉林长春130024

出　　处：《化学世界》2006年第5期260-262,266,共4页Chemical World

摘　　要：采用化学法制备含B酚醛树脂热解炭材料,比较了不同热解温度及B的掺杂对炭材料微观结构及嵌锂性能的影响。结果表明:H3BO3的加入及热解温度的提高,可提高炭材料的石墨化程度;含B炭材料的首次充放电比容量及充放电效率高于纯炭材料;600℃时含B炭材料循环5次后可逆比容量为423 mAh/g,大于石墨电极的理论比容量372 mAh/g。The boron-containing phenolic resin pyrolysis carbon material was prepared by chemical method. The influences of pyrolysis temperature and doping on microscopic structure and lithium-intercalation performance were studied. The results showed that adding H3 BO3 and increasing the pyrolysis temperature enhanced the graphitization of the material. The efficiency and capacity of the boron-doped carbon material are higher than those of pure carbon materials at the first charge and discharge cycle. After 5 charge/discharge cycles, the reversible capacity of the boron-doped carbon material is 423 mA·h/g when the pyrolysis temperature was 600℃. The reversible capacity of the boron-doped carbon material is greater than the theoretical capacity of pure carbon electrode which is 372 mA·h/g.

关 键 词：锂离子电池 掺硼 碳负极 酚醛树脂(PR) 

分 类 号：TM912.15[电气工程—电力电子与电力传动]