铁基超级电容器电极材料及器件  

Iron-based Supercapacitor Electrode Materials and Devices

作　　者：潘伟[1,2] 梁晰童 陈昆峰[1] 张牧[2] 孙旭东[2] 薛冬峰[1] 

机构地区：[1]中国科学院长春应用化学研究所稀土资源利用国家重点实验室,长春130022 [2]东北大学材料科学与工程学院材料各向异性与织构教育部重点实验室,沈阳110819 [3]中国科学院大学,北京100049

出　　处：《河南大学学报（自然科学版）》2016年第5期567-582,共16页Journal of Henan University:Natural Science

基　　金：国家自然科学基金项目(51125009;91434118);国家自然科学基金创新研究群体项目(21221061);中国科学院国际合作局对外合作重点项目(121522KYS820150009);吉林省科技发展计划项目(20160520002JH)

摘　　要：自然界中含量丰富的铁具有多种氧化态,因此铁元素存在多种化合物和合金形式.铁基赝电容电极材料通过表面可逆的法拉第氧化还原反应储存电能.由于铁基电极材料表面的强吸附性和高反应活性,铁基超级电容器引起了研究者的广泛兴趣.本文主要介绍了几种被广泛研究的铁基超级电容器电极材料及其器件,并对能够提高超级电容器比容量的铁基胶体离子超级电容器电极材料和铁基氧化还原电解质进行了分析,讨论了铁基超级电容器面临的挑战和亟待解决的问题.通过原位表征技术探究铁基超级电容器的失效机制,发掘其构效关系,有望开发出具有高能量密度和稳定性的铁基超级电容器,同时构建新型能量储存设备.Iron element is abundant in nature and has varied chemical compounds and alloys with different oxidation states,i.e.FeOOH,FeO,Fe2O3,Fe3O4,K3[Fe（CN）6].Due to the strong adsorption and high reactive activity on the surface of iron-based electrode materials,the iron-based supercapacitor electrode materials are widely investigated.The iron-based pseudocapacitor electrode materials can store and release energy in a reversible Faradaic reaction between different iron oxidation states.In this review,we introduced several iron-containing compounds which have been widely investigated in iron-based supercapacitors and recent research work about iron-based colloidal supercapacitors and iron-based redox electrolyte,leading to the improvement of the capacitance of supercapacitors.Iron-based colloidal supercapacitors can show both high energy and power densities,due to the utilization of fast electron/ion transfer rate and multiple-electron transferred reaction.Iron-based redox electrolyte can provide additional redox capacitance beyond electroactive materials.Based on the existing iron-based electrode materials for lithium ion battery with high lithium storage capacity,it is expected to develop iron-based electrode materials with a high energy density and good stability to build a new kind of electrochemical energy storage equipments.

关 键 词：铁 铁基电极材料 铁基电解质 超级电容器 氧化还原电解质 

分 类 号：O646[理学—物理化学]