Issue 31, 2020

Hydrogenated dual-shell sodium titanate cubes for sodium-ion batteries with optimized ion transportation

Abstract

As a typical layered electrode material, sodium titanate has shown high energy density but poor ion transportation kinetics for sodium-ion batteries. Hence, optimizing the migration of larger ions in such a layered structured material is of great significance for sodium-ion batteries. Herein, we rationally construct dual-shell structured titanates with hydrogenated-induced oxygen vacancies to regulate the tunnels for Na ion transport structurally and atomically. Serving as anodes for batteries, the as-prepared samples exhibit enhanced rate performance compared to the one without oxygen vacancies. The result demonstrates an effective approach to optimize ion transport kinetics.

Graphical abstract: Hydrogenated dual-shell sodium titanate cubes for sodium-ion batteries with optimized ion transportation

Supplementary files

Article information

Article type
Paper
Submitted
23 Qun 2020
Accepted
07 Agd 2020
First published
08 Agd 2020

J. Mater. Chem. A, 2020,8, 15829-15833

Hydrogenated dual-shell sodium titanate cubes for sodium-ion batteries with optimized ion transportation

F. Xie, L. Zhang, Y. Jiao, A. Vasileff, D. Chao and S. Qiao, J. Mater. Chem. A, 2020, 8, 15829 DOI: 10.1039/D0TA00967A

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