Title

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

RIS ID

99132

Publication Details

Li, W., Chou, S., Wang, J., Wang, J., Gu, Q., Liu, H. & Dou, S. (2015). Multifunctional conducing polymer coated Na1+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 Na1+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

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