Asymmetric electrochemical capacitor microdevice designed with vanadium nitride and nickel oxide thin film electrodes

被引：88

作者：

Eustache, Etienne ^{[1
]}

Frappier, Renaud ^{[1
]}

Porto, Raul Lucio ^{[1
]}

Bouhtiyya, Said ^{[2
]}

Pierson, Jean-Francois ^{[2
]}

Brousse, Thierry ^{[1
]}

机构：

[1] Univ Nantes, CNRS, Inst Mat Jean Rouxel IMN, F-44322 Nantes 3, France

[2] Univ Lorraine, Ecole Mines, Inst Jean Lamour, UMR CNRS 7198,Dept CP2S, F-54042 Nancy, France

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2013年 / 28卷

关键词：

Electrochemical capacitor; Supercapacitor; Microdevice; Vanadium nitride; Nickel oxide; ACTIVATED CARBON; SURFACE-AREA; SUPERCAPACITORS; BEHAVIOR;

D O I：

10.1016/j.elecom.2012.12.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Vanadium nitride thin film has been coupled with electrodeposited nickel oxide in order to design an electrochemical capacitor microdevice. VN has been used as negative electrode while NiO was used as the positive one in 1 M KOH electrolyte. VN exhibits a pseudo-capacitive behavior while NiO shows a faradaic behavior. This asymmetric microdevice has been operated between 0.5 and up to 1.8 V in aqueous based electrolyte (1 M KOH). Long term cycling ability (10,000 charge/discharge cycles) has been demonstrated with interesting energy (1.0 mu W h cm(-2)) and power (40 mW cm(-2)) densities. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：104 / 106

页数：3

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