Multifunctional conducing polymer coated Na1+xMnFe(CN)6 cathode for sodium-ion batteries with superior performance via a facile and one-step chemistry approach

Authors

Weijie Li, University of WollongongFollow
Shulei Chou, University of WollongongFollow
Jiazhao Wang, University of WollongongFollow
Jian Li Wang, University of WollongongFollow
Qinfen Gu, Australian Synchrotron Company
Hua-Kun Liu, University of WollongongFollow
S X. Dou, University of WollongongFollow

RIS ID

99132

Publication Details

Li, W., Chou, S., Wang, J., Wang, J., Gu, Q., Liu, H. & Dou, S. (2015). Multifunctional conducing polymer coated Na_1+xMnFe(CN)₆ cathode for sodium-ion batteries with superior performance via a facile and one-step chemistry approach. Nano Energy, 13 200-207.

Abstract

A facile, one-step, soft chemistry approach is developed to synthesize ClO₄-doped polypyrrole coated Na_1+xMnFe(CN)6 composite as a cathode material (NMHFC@PPy) for SIBs. PPy plays multiple important roles in the composite. First, PPy serves as a conductive coating layer which can increase the electronic conductivity of NMHFC to improve the rate capability. Second, PPy can act as a protective layer to reduce the dissolution of Mn in the electrolyte to improve the cycling performance. Finally, the PPy doped with ClO4 ^- can act as active materials to increase the capacity of the composite. NMHFC@PPy shows high energy density (428Whkg^-1), enhanced cycling performance (67% capacity retention after 200 cycles), and excellent rate capacity (46% capacity for 40C rate).

Grant Number

ARC/LP120200432

Additional Grant Number

http://purl.org/au-research/grants/arc/LP120200432