Polysulphides reversible faradaic reactions in supercapacitor application

被引：15
|
作者：
Kopczynski, Kacper [1 ]
Milczarek, Grzegorz [1 ]
Lota, Grzegorz [1 ]
机构：
[1] Poznan Univ Tech, Inst Chem & Tech Electrochem, Berdychowo4, PL-60965 Poznan, Poland
来源：
ELECTROCHEMISTRY COMMUNICATIONS | 2016年 / 68卷
关键词：
Supercapacitor; Polysulphide; Faradaic reactions; Electrolyte; REDOX ADDITIVE ELECTROLYTE; ACTIVE ELECTROLYTE; CARBON; CAPACITANCE;
D O I：
10.1016/j.elecom.2016.04.016
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The electrochemical performance of polysulphide compounds as an electrolyte in supercapacitor was studied. Numerous reversible faradaic reactions during which oxidation state of sulphur changes from -2 to -0.4 work as an efficient source of faradaic reactions. Polysulphides were synthesized by a simple, inexpensive method. This innovative system offers quite high values of specific capacitance, more than twice as high as electrolyte without polysulphides. In addition, cyclability (5000 cycles) does not influence the capacitance of the electrochemical capacitor when polysulphide compounds are used as the electrolyte. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：28 / 31
页数：4
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