竹炭深加工及在能源电池中应用的研究  

Deep processing and application of bamboo charcoal in energy storage

作　　者：崔宇 王志勇[2] 陈晓红[2] 宋怀河[2] 郭鹏[2] 

机构地区：[1]中国林产品经销公司,北京100029 [2]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《炭素技术》2010年第5期5-9,共5页Carbon Techniques

基　　金："十一五"国家科技支撑计划项目(2008BADA9B05)

摘　　要：以天然毛竹材为原料,通过高温炭化、活化等处理后,得到具有高比表面积的竹炭基生物质能源电池材料。通过恒流充放电、循环伏安等电化学测试方法,考察了竹炭作为超级电容器及锂离子电池电极材料时的电化学性能。结果表明:采用KOH活化后得到的竹炭,比表面积可达2366m2/g;用作超级电容器电极材料,比容量可以达到205F/g,并表现出良好的充放电效率。作为锂离子电池负极材料在200mA/g的电流密度下30次循环后仍然具有225mA·h/g,显示了竹炭具有较高的比容量及良好的循环性能和倍率性能,作为新能源材料具有广泛的应用前景。Bamboo charcoal with high specific surface area is prepared through carbonization and activation treatments. Electrochemical performances of bamboo charcoal as electrode for both supereapacitor and lithium-ion batteries were discussed through the three/two electrode system by galvanostatic charge-disehage test. Results showed that the specific capacity attains 275 mAh/g when the current density is 50 mA/g with well cycle and high charge-discharge efficiency. When activated bamboo charcoal works as electrode for supercapaeitor, it shows as high as 205 F/g of specific capacity.

关 键 词：竹炭 锂离子电池 超级电容器 储能 

分 类 号：TQ424.1[化学工程]