High energy density PbO2/activated carbon asymmetric electrochemical capacitor based on lead dioxide electrode with three-dimensional porous titanium substrate

被引：69

作者：

Zhang, Wenli ^{[1
]}

Lin, Haibo ^{[1
,2
]}

Kong, Haishen ^{[1
]}

Lu, Haiyan ^{[1
]}

Yang, Zhe ^{[1
]}

Liu, Tingting ^{[1
]}

机构：

[1] Jilin Univ, Coll Chem, Changchun 130012, Peoples R China

[2] Jilin Univ, Minist Educ, Key Lab Phys & Technol Adv Batteries, Changchun 130012, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 30期

基金：

中国国家自然科学基金;

关键词：

Lead dioxide electrode; Porous titanium substrate; Electrodeposition; Asymmetric electrochemical capacitor; High energy density; STATE-OF-CHARGE; PBO2; THIN-FILM; ACID-BATTERIES; SUPERCAPACITOR APPLICATIONS; CURRENT COLLECTORS; SURFACE; PERFORMANCE; MECHANISM; MARKETS; INNER;

D O I：

10.1016/j.ijhydene.2014.08.039

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A PbO2/AC asymmetric electrochemical capacitor (AEC) with energy density as high as 49.4 Wh kg(-1), power density of 433.2 W kg(-1) and specific capacitance of 135.2 F g(-1) was fabricated with PbO2 electrodeposited on three-dimensional porous titanium (3D-Ti/PbO2) and activated carbon. The high electrochemical active surface of 3D-Ti/PbO2 resulted in high specific capacity making it suitable for use as positive electrode in PbO2/AC AEC. The fabricated AEC demonstrated good power performance with an energy density conservation of 30 Wh kg(-1) at power density of 2078 W kg(-1). The fabricated AEC also showed excellent cycling stability with capacitance retention of 99.2% after 1000 cycles. Copyright (c) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：17153 / 17161

页数：9

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