Article Title

Hierarchical porous metal ferrite ball-in-ball hollow spheres: General synthesis, formation mechanism, and high performance as anode materials for Li-ion batteries

Authors

Shouli Li, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Aihua Li, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Ranran Zhang, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Yanyan He, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Yanjun Zhai, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
Liqiang Xu, Key Laboratory of Colloid and Interface Chemistry (Shandong University), Ministry of Education,and School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China

Keywords

hierarchical, porous, ferrite, lithium ion battery, ball-in-ball

Abstract

High yields of CoFe2O4, NiFe2O4 and CdFe2O4 hierarchical porous ball-in-ball hollow spheres have been achieved using hydrothermal synthesis followed by calcination. The mechanism of formation is shown to involve an in situ carbonaceous-template process. Hierarchical porous CoFe2O4 hollow spheres with different numbers of shells can be obtained by altering the synthesis conditions. The electrochemical properties of the resulting CoFe2O4 electrodes have been compared, using different binders. The as-obtained CoFe2O4 and NiFe2O4 have relatively high reversible discharge capacity and good rate retention performance which make them promising materials for use as anode materials in lithium ion batteries.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-014-0474-3

Publisher

Tsinghua University Press

Recommended Citation

Shouli Li,Aihua Li,Ranran Zhang,Yanyan He,Yanjun Zhai,Liqiang Xu, Hierarchical porous metal ferrite ball-in-ball hollow spheres: General synthesis, formation mechanism, and high performance as anode materials for Li-ion batteries. NanoRes.2014, 7(8): 1116–1127