A symmetric MnO_2/MnO_2 flexible solid state supercapacitor operating at 1.6V with aqueous gel electrolyte

作     者：Nilesh R.Chodankar Deepak P.Dubal Girish S.Gund Chandrakant D.Lokhande 

作者机构：Thin Film Physics Laboratory Department of Physics Shivaji University Catalan Institute of Nanoscience and NanotechnologyCIN2 ICN2 (CSIC-ICN) Campus UAB 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2016年第25卷第3期

页      面：463-471页

核心收录：

学科分类：080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 

基　　金：DAE-BRNS  BARC Mumbai  India for financial support through research Project no.2012/34/67/BRNS/2911 dtd. 07/03/2013 

主　　题：MnO_2 thin film Polymer gel electrolyte Flexible-all-solid-state supercapacitors 

摘      要：The demand of microelectronic devices postulated high energetic flexible energy storage devices. Flexible solid state supercapacitor is flawless possible candidate to fulfill the requirement of microelectronic devices. This investigation provides practical evidence of the use of flexible solid state supercapacitors based on MnOelectrodes with polyvinylpyrrolidone(PVP)-Li ClOgel electrolyte. Initially, different acid mediated growths of MnOhave been carried. Later, the electrochemical performances of MnOelectrodes have been carried out. Impressively, the fabricated symmetric flexible solid state supercapacitor(FSS-SC) device demonstrates the highest operating potential window of 1.6 V with extended cycling stability. Moreover, the cell exhibits high energy density of 23 Wh/kg at power density of 1.9 k W/kg. It is interesting to note that the device shows excellent flexibility upon bending at angle of 180° for number of times. These results clearly evidenced those symmetric FSS-SC devices based on MnOelectrodes are promising energy storage devices for microelectronic applications.