新能源汽车超级电容器电极的制备研究  

Fabrication and study of new supercapacitor for HEV

作　　者：李振鹏[1,2] 门传玲[1,2] 吴洁[1,2] 贾智强[1,2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093 [2]联创汽车电子有限公司,上海201206

出　　处：《电源技术》2015年第10期2131-2133,2149,共4页Chinese Journal of Power Sources

基　　金：上海市自然科学基金(13ZR1428200);国家级上海理工大学自然培训项目(14XPM06)

摘　　要：通过气相沉积法成功地原位合成了膨胀石墨/碳纳米管复合材料,利用扫描电镜、拉曼光谱和X射线衍射仪确定得到碳纳米管插层的膨胀石墨三维多孔复合结构,并通过循环伏安法、交流阻抗法和恒流充放电等对其电化学性能进行测试。结果表明,膨胀石墨/碳纳米管在1 m V/s扫速速率下的比电容达到149.5 F/g,且倍率性能表现出色;同时1 000次充放电后比电容仍保持94%,具有很好的循环寿命,并能保持96%-99%的高充放电效率,功率性能高。Expanded graphite/CNTs composites were synthesized successfully through chemical vapor deposition. By SEM, XRD and the laser micro Raman, confirming that CNTs were inserted into expanded. And the electrochemical performance of the graphene-Zn O electrodes was analyzed through cyclic voltammetry and A.C. impedance tests.High specific capacitance of 149.5 F/g, good cycle multiple performance, excellent cycle stability of retaining 94%specific capacitance over 1000 charging/discharging cycles and good charging/ discharging efficiency of 96%~99%,were exhibited by expanded graphite/CNTs.

关 键 词：膨胀石墨 碳纳米管 复合材料 超级电容器 

分 类 号：TM53[电气工程—电器]