An asymmetric electric double-layer capacitor with a janus membrane and two different aqueous electrolytes

被引：18

作者：

Liang, Na ^{[1
]}

Ji, Yongsheng ^{[1
]}

Xu, Jing ^{[1
]}

Zuo, Danying ^{[1
]}

Chen, Dongzhi ^{[1
]}

Zhang, Hongwei ^{[1
]}

机构：

[1] Wuhan Text Univ, Coll Mat Sci & Engn, Wuhan 430073, Hubei, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2019年 / 423卷

关键词：

Asymmetric EDLC; Janus membrane; Aqueous electrolyte; Specific energy; Voltage; HIGH-ENERGY-DENSITY; EXCHANGE MEMBRANES; SUPERCAPACITORS; CARBON; PERFORMANCE;

D O I：

10.1016/j.jpowsour.2019.03.053

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：

An asymmetric aqueous electric double-layer capacitor is presented, which consists of two activated carbon electrodes, a compact Janus membrane with sulfonated polystyrene and quaternized polystyrene, aqueous acidic and alkaline electrolyte solutions. The carbon-based aqueous supercapacitor can not only run at a high cell voltage of 2.2 V, but also deliver a specific energy of 20.06 Wh kg(-1). Moreover, such a supercapacitor with specific energy of 40-50 Wh kg(-1) can be predicted after further optimization.

引用

页码：68 / 71

页数：4

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