Nickel nanopore arrays as promising current collectors for constructing solid-state supercapacitors with ultrahigh rate performance

作     者：Huaping Zhao Long Liu Yaoguo Fang Ranjith Vellacheri Yong Lei 

作者机构：Institute of Physics and IMN MacroNano Ilmenau University of Technology Ilmenau 98693 Germany 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2018年第12卷第3期

页      面：339-345页

核心收录：

学科分类：0810[工学-信息与通信工程] 081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 081001[工学-通信与信息系统] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：from the European Research Council (Three Dsurface) European Research Council (HiNaPc) BMBF (ZIK-3DNanoDevice) BMBF (Meta-ZIK-BioLithoMorphie) German Research Foundation (DFG) 

主　　题：supercapacitor ultrahigh rate metallic nanopore arrays current collectors PEDOT 

摘      要：In this work, nickel nanopore arrays with a highly-oriented nanoporous structure inherited from por- ous alumina membranes were used as nanostructured current collectors for constructing ultrahigh rate solid-state supercapacitors. A thin layer of poly（3,4-ethylenediox- ythiophene） （PEDOT） as electroactive materials was conformally coated onto nickel nanopores to form heterostructured electrodes. The as-prepared electrodes have a large specific surface area to ensure a high capacity, and the highly-oriented nanoporous structure of nickel nanopores reduces the ion transport resistance, allowing the ions in the solid-state electrolytes to quickly access the PEDOT surface during the fast charge-discharge process. As a result, the assembled solid-state supercapacitor in a symmetric configuration exhibits an ideal capacitive behavior and a superior rate capability even at an ultrahigh scan rate of 50 V· s^-1.