Nanosized Fe₂O₃ on Three Dimensional Hierarchical Porous Graphene-Like Matrices as High-Performance Anode Material for Lithium Ion Batteries

Authors

Qin-wei ZHANG, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China;
Yun-yong LI, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China;
Pei-kang SHEN, State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, China;Follow

Corresponding Author

Pei-kang SHEN(pkshen@gxu.edu.cn)

Abstract

Ferric oxide (Fe₂O₃) as a promising anode material for lithium ion battery is due to its high theoretical capacity (1007 mAh·g^-1), earth abundance and low cost. The nanosized Fe₂O₃ on the three dimensional hierarchical porous graphene-like network (denoted as Fe₂O₃-3D HPG) has been synthesized by homogeneous precipitation and heat treatment. The 3D HPG can provide a highly conductive structure in conjunction to support well contacted Fe₂O₃ nanoparticles, and effectively enhance the mechanical strength of the matrices during volume changes, as well as improve the utilization rate of Fe₂O₃ and suppress the aggregation of Fe₂O₃ nanoparticles during Li ion insertion/extraction. As a result, the first discharge capacity of Fe2O3-3D HPG was up to 1745 mAh·g^-1 at 50 mA·g^-1, and after 50 cycles, the retention of the capacity was 1095 mAh·g^-1.

Graphical Abstract

Keywords

Fe2O3, anode materials, Li ion batteries, three dimensional hierarchical porous graphene-like matrix, electrochemistry

DOI Link

https://doi.org/10.13208/j.electrochem.140913

Publication Date

2015-02-28

Online Available Date

2014-11-18

Revised Date

2014-11-13

Received Date

2014-09-12

Recommended Citation

Qin-wei ZHANG, Yun-yong LI, Pei-kang SHEN. Nanosized Fe₂O₃ on Three Dimensional Hierarchical Porous Graphene-Like Matrices as High-Performance Anode Material for Lithium Ion Batteries[J]. Journal of Electrochemistry, 2015 , 21(1): 66-71.
DOI: 10.13208/j.electrochem.140913
Available at: https://jelectrochem.xmu.edu.cn/journal/vol21/iss1/10