Study on different power and cycling performance of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 aqueous electrolytes

Jie Shao; Xinyong Li; Qunting Qu; Yuping Wu

doi:10.1016/j.jpowsour.2012.09.046

Study on different power and cycling performance of crystalline K _xMnO ₂·nH ₂O as cathode material for supercapacitors in Li ₂SO ₄, Na ₂SO ₄, and K ₂SO ₄ aqueous electrolytes

Jie Shao, Xinyong Li, Qunting Qu, Yuping Wu

科研成果: 期刊稿件 › 文章 › 同行评审

80 引用（Scopus）

摘要

The charge/discharge, electrochemical impedance, cyclic voltammogram, and cycling behaviors of crystalline K _xMnO ₂·nH ₂O as cathode material for supercapacitors in Li ₂SO ₄, Na ₂SO ₄, and K ₂SO ₄ electrolytes were compared. The different power and cycling performance of K _xMnO ₂·nH ₂O during charge/discharge in the three electrolytes were elucidated by analyzing its composition and structure evolution. Compared with the Li ₂SO ₄ and Na ₂SO ₄ electrolytes, the highest ionic conductivity of K ₂SO ₄ electrolyte, the fastest charge-transfer process and slightest structural evolution of K _xMnO ₂·nH ₂O during charge/discharge in the K ₂SO ₄ electrolyte lead to a superior power and cycling behavior for supercapacitor application.

源语言	英语
页（从-至）	56-61
页数	6
期刊	Journal of Power Sources
卷	223
DOI	https://doi.org/10.1016/j.jpowsour.2012.09.046
出版状态	已出版 - 1 2月 2013
已对外发布	是

联合国可持续发展目标

此成果有助于实现下列可持续发展目标：

访问文件

10.1016/j.jpowsour.2012.09.046

其它文件与链接

链接到 Scopus 的出版物

引用此

@article{9513f5a210424cfc9eb24de5daf19b60,

title = "Study on different power and cycling performance of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 aqueous electrolytes",

abstract = "The charge/discharge, electrochemical impedance, cyclic voltammogram, and cycling behaviors of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 electrolytes were compared. The different power and cycling performance of K xMnO 2·nH 2O during charge/discharge in the three electrolytes were elucidated by analyzing its composition and structure evolution. Compared with the Li 2SO 4 and Na 2SO 4 electrolytes, the highest ionic conductivity of K 2SO 4 electrolyte, the fastest charge-transfer process and slightest structural evolution of K xMnO 2·nH 2O during charge/discharge in the K 2SO 4 electrolyte lead to a superior power and cycling behavior for supercapacitor application.",

keywords = "Cycling performance, Electrolytes, Manganese dioxide, Power, Supercapacitor",

author = "Jie Shao and Xinyong Li and Qunting Qu and Yuping Wu",

year = "2013",

month = feb,

day = "1",

doi = "10.1016/j.jpowsour.2012.09.046",

language = "英语",

volume = "223",

pages = "56--61",

journal = "Journal of Power Sources",

issn = "0378-7753",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Study on different power and cycling performance of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 aqueous electrolytes

AU - Shao, Jie

AU - Li, Xinyong

AU - Qu, Qunting

AU - Wu, Yuping

PY - 2013/2/1

Y1 - 2013/2/1

N2 - The charge/discharge, electrochemical impedance, cyclic voltammogram, and cycling behaviors of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 electrolytes were compared. The different power and cycling performance of K xMnO 2·nH 2O during charge/discharge in the three electrolytes were elucidated by analyzing its composition and structure evolution. Compared with the Li 2SO 4 and Na 2SO 4 electrolytes, the highest ionic conductivity of K 2SO 4 electrolyte, the fastest charge-transfer process and slightest structural evolution of K xMnO 2·nH 2O during charge/discharge in the K 2SO 4 electrolyte lead to a superior power and cycling behavior for supercapacitor application.

AB - The charge/discharge, electrochemical impedance, cyclic voltammogram, and cycling behaviors of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 electrolytes were compared. The different power and cycling performance of K xMnO 2·nH 2O during charge/discharge in the three electrolytes were elucidated by analyzing its composition and structure evolution. Compared with the Li 2SO 4 and Na 2SO 4 electrolytes, the highest ionic conductivity of K 2SO 4 electrolyte, the fastest charge-transfer process and slightest structural evolution of K xMnO 2·nH 2O during charge/discharge in the K 2SO 4 electrolyte lead to a superior power and cycling behavior for supercapacitor application.

KW - Cycling performance

KW - Electrolytes

KW - Manganese dioxide

KW - Power

KW - Supercapacitor

UR - http://www.scopus.com/inward/record.url?scp=84867025674&partnerID=8YFLogxK

U2 - 10.1016/j.jpowsour.2012.09.046

DO - 10.1016/j.jpowsour.2012.09.046

M3 - 文章

AN - SCOPUS:84867025674

SN - 0378-7753

VL - 223

SP - 56

EP - 61

JO - Journal of Power Sources

JF - Journal of Power Sources

ER -

Study on different power and cycling performance of crystalline K xMnO 2·nH 2O as cathode material for supercapacitors in Li 2SO 4, Na 2SO 4, and K 2SO 4 aqueous electrolytes

摘要

联合国可持续发展目标

访问文件

其它文件与链接

指纹

引用此

Study on different power and cycling performance of crystalline K _xMnO ₂·nH ₂O as cathode material for supercapacitors in Li ₂SO ₄, Na ₂SO ₄, and K ₂SO ₄ aqueous electrolytes