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Issue 7, 2014
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3D ordered macroporous LaFeO3 as efficient electrocatalyst for Li–O2 batteries with enhanced rate capability and cyclic performance

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Abstract

Rechargeable lithium–oxygen (Li–O2) battery is one of the most promising technologies among various electrochemical energy storage systems, while the incapability of the electrocatalyst and the inefficient transport of reactants in the O2 electrode still limit the round-trip efficiency, rate capability, and cycle stability of the Li–O2 battery. Here, three-dimensional ordered macroporous LaFeO3 (3DOM-LFO) is synthesized and employed as electrocatalyst in Li–O2 battery with relatively stable TEGDME based electrolyte. The Li–O2 cells with 3DOM-LFO show enhanced electrochemical performances, including low overpotential, high specific capacity, good rate capability and cycle stability up to 124 cycles. This enhanced catalytic performance might be due to the synergistic effect of the porosity and catalytic activity of the 3DOM-LFO catalyst.

Graphical abstract: 3D ordered macroporous LaFeO3 as efficient electrocatalyst for Li–O2 batteries with enhanced rate capability and cyclic performance

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Supplementary files

Article information


Submitted
30 Aug 2013
Accepted
25 Nov 2013
First published
29 Nov 2013

Energy Environ. Sci., 2014,7, 2213-2219
Article type
Communication

3D ordered macroporous LaFeO3 as efficient electrocatalyst for Li–O2 batteries with enhanced rate capability and cyclic performance

J. Xu, Z. Wang, D. Xu, F. Meng and X. Zhang, Energy Environ. Sci., 2014, 7, 2213
DOI: 10.1039/C3EE42934B

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