Better lithium-ion storage materials made through hierarchical assemblies of active nanorods and nanocrystals

Chao Lei; Zheng Chen; Hiesang Sohn; Xiaolei Wang; Zaiyuan Le; Ding Weng; Meiqing Shen; Ge Wang; Yunfeng Lu

doi:10.1039/C4TA03715D

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Better lithium-ion storage materials made through hierarchical assemblies of active nanorods and nanocrystals†

Chao Lei,^ab Zheng Chen,^b Hiesang Sohn,^b Xiaolei Wang,^b Zaiyuan Le,^b Ding Weng,^b Meiqing Shen,^a Ge Wang*^c and Yunfeng Lu*^b

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* Corresponding authors

^a Key Laboratory for Green Chemical Technology of the Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin, P. R. China

^b Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, CA 90095, USA
E-mail: luucla@ucla.edu

^c School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, China
E-mail: gewang@mater.ustb.edu.cn

Abstract

Lithium-ion storage materials with significantly improved performance were developed through the hierarchical assemblies of vanadium-based oxide (V₂O₅ and LiV₃O₈) nanorods or iron oxide (Fe₃O₄) nanocrystals using an efficient, continuous aerosol-spray process. Such hierarchically porous spheres, which were made from networks of low-dimension building blocks, result in materials with reduced ion-diffusion length, fast electrolyte diffusion, and structural robustness. Due to their unique hierarchical structure, these spheres exhibit high lithium storage capacity, excellent cycling stability and good rate capability. This work presents a novel synthesis approach toward better lithium-ion storage materials.

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DOI: https://doi.org/10.1039/C4TA03715D
Article type: Paper
Submitted: 18 Jul 2014
Accepted: 18 Aug 2014
First published: 09 Sep 2014

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J. Mater. Chem. A, 2014,2, 17536-17544

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Better lithium-ion storage materials made through hierarchical assemblies of active nanorods and nanocrystals

C. Lei, Z. Chen, H. Sohn, X. Wang, Z. Le, D. Weng, M. Shen, G. Wang and Y. Lu, J. Mater. Chem. A, 2014, 2, 17536 DOI: 10.1039/C4TA03715D

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Journal of Materials Chemistry A

Better lithium-ion storage materials made through hierarchical assemblies of active nanorods and nanocrystals†

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Better lithium-ion storage materials made through hierarchical assemblies of active nanorods and nanocrystals

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