《超级电容器电极材料的制备》.doc

渤海大学 学士学位论文　 超级电容器新型电极材料的题 目： 制备及性能研究学生姓名：指导教师：院 系：化学化工与食品安全学院专 业：班 级： 论文答辩日期：2012.05.27 超级电容器新型电极材料的制备及性能研究 姓名 化学化工与食品安全学院摘要：超级电容器是近年发展起来的一种新型储能元件，具有功率密度高、寿命长、无需维护及充放电迅速等特性。其中电极材料的性质和电解液的类型是影响超级电容器性能的关键因素。本论文以热稳定性高、绿色无污染的 1-甲基-3-己基咪唑三氟乙酸离子液体（HmimCF3）为基础，微波下分别与葡萄糖、蔗糖和淀粉反应，合成新型的粘稠状的碳点离子液体复合物，用此复合物部分的代替传统活性炭极片制备中的黏结剂和导电剂，制备出新型的超级电容器电极材料。通过扫描电镜观察新型极片的表面微观结构；采用循环伏安、恒流充放电及交流阻抗等测试方法对新型电极材料进行电化学性能研究，其中，葡萄糖-碳点离子液体复合物的效果最好，比容量从 285.7 Fg-1 提高到 365.5 Fg-1，内阻由 1.92降低到 0.61 ，充放电效率由 89.9分别提高到 97.6 。关键词：活性炭；电极材料；碳点离子液体；超级电容器；电化学性能 Supercapacitor Energy Storage and Its Application 英文名 College of Chemistry Chemical Engineering and Food SafetyAbstract: The super capacitor is developed in recent years a new type ofenergy storage devices with high power density long life maintenance-freeand charge and discharge quickly characteristics.The nature of the electrodematerials and electrolyte type is a key factor affecting the performance of thesuper capacitor. Based on the papers to the high thermal stability greenpollution-free 1 - methyl - 3 - hexyl TFA ionic liquid Hmim CF3 groupsmicrowave respectively with glucose sucrose and starch reaction thesynthesis of new viscous ionic liquid compound of carbon points to use insteadof this complex part of the traditional activated carbon pole piece in thepreparation of the binder and conductive agent prepared a new type ofelectrode materials for supercapacitor. Microscopic structure of the newscanning electron microscope on the surface of the pole piece by cyclicvoltammetry galvanostatic charge-discharge and AC impedance testelectrochemical properties of new electrode materials including the effect ofglucose - Point Carbon ionic liquid complexes well the specific capacityincreased from 285.7 F g-1 to 365.5 F g-1 the internal resistancedecreased to 0.61 from 1.92 charge-discharge efficiency increased to97.6 from 89.9 respectively.Key words: Activated carbon electrode material Point Carbon ionic liquidsuper capacitor electrochemical performance 目 录