电化学2017，Vol.23Issue(5)：581-585,5.DOI:10.13208/j.electrochem.170344
水系锌离子电容器
An Aqueous Zn-Ion Capacitor
摘要
Abstract
We first present a new aqueous zinc-ion (Zn-ion) capacitor based on vanadium pentoxide (V2O5) cathode,activated carbon (AC) anode,and 2 mol·L-1 zinc trifluoromethanesulfonate (Zn(TfO)2) electrolyte.The Zn-ion capacitor possesses a wide electrochemical window of 1.4 V,good rate capability and cycling stability.The XRD data demonstrates that the Zn2+ ion serving as the charge carrier could be reversibly intercalated into the V2O5.This capacitor delivered a power density of 181 W· kg-1 and an energy density of 4.5 Wh·kg-1 at 1000 mA·g-1.This work may open up new opportunities for developing multivalent ion-based electrochemical capacitors.关键词
超级电容器/锌离子电容器/五氧化二钒/多价离子嵌脱/水系电解液Key words
supercapacitor/Zn-ion capacitor/V2O5/multivalent ion (de-)intercalation/aqueous electrolyte分类
化学化工引用本文复制引用
赵井文,李佳佳,韩鹏献,崔光磊..水系锌离子电容器[J].电化学,2017,23(5):581-585,5.基金项目
国家自然科学基金项目(No.21601195,No.51625204,No.21671196)、中国科学院青年创新促进会(No.2017253)、青岛市源头创新计划、青岛市储能行业科学研究智库联合基金及青岛市太阳能与储能技术重点实验室资助 （No.21601195,No.51625204,No.21671196）
