Issue 46, 2016, Issue in Progress

Electrochemical performance in alkaline and neutral electrolytes of a manganese phosphate material possessing a broad potential window

Abstract

An underlying electrode material of manganese phosphate has been designed and synthesized, possessing wide potential windows (−0.9–0.7 V in neutral and −0.5–0.6 V in alkaline electrolyte), satisfying specific capacitances (203 F g−1 in neutral and 194 F g−1 in alkaline electrolyte), outstanding rate capabilities and excellent cycling stabilities. The morphological characteristics and electrochemical analyses indicate that the layered crystal structure offers many nano-paths and improves the diffusion of electrolyte ions, which can noticeably promote electrochemical performance. Furthermore, a Mn3(PO4)2//AC asymmetric supercapacitor and a Mn3(PO4)2//Mn3(PO4)2 symmetric supercapacitor have been assembled at a cell voltage between 0 and 1.6 V, and exhibit excellent electrochemical stabilities and stable energy and power characteristics, which reveal that this manganese phosphate material is promising for electrochemical energy storage applications.

Graphical abstract: Electrochemical performance in alkaline and neutral electrolytes of a manganese phosphate material possessing a broad potential window

Article information

Article type
Paper
Submitted
25 Jan 2016
Accepted
09 Apr 2016
First published
11 Apr 2016

RSC Adv., 2016,6, 40077-40085

Electrochemical performance in alkaline and neutral electrolytes of a manganese phosphate material possessing a broad potential window

X. Ma, W. Zhang, L. Kong, Y. Luo and L. Kang, RSC Adv., 2016, 6, 40077 DOI: 10.1039/C6RA02217K

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