Ultrahigh rate capability and long cycling stability of dual-ion batteries enabled by TiO2 microspheres with abundant oxygen vacancies

Tong Mu; Jiguang Zhang; Rui Shi; Yunfeng Zhu; Jinglian Zhu; Yana Liu; Yao Zhang; Liquan Li

doi:10.1039/D0CC03099F

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Ultrahigh rate capability and long cycling stability of dual-ion batteries enabled by TiO₂ microspheres with abundant oxygen vacancies†

Tong Mu,^ab Jiguang Zhang,

*^ab Rui Shi,^ab Yunfeng Zhu,*^ab Jinglian Zhu,^ab Yana Liu,^ab Yao Zhang

^c and Liquan Li^ab

Author affiliations

* Corresponding authors

^a College of Materials Science and Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
E-mail: zhangjiguang@njtech.edu.cn, yfzhu@njtech.edu.cn

^b Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function Composites, Nanjing Tech University, Nanjing 211816, P. R. China

^c School of Materials Science and Engineering, Southeast University, Nanjing 211189, P. R. China

Abstract

Favourable effects of oxygen vacancies in TiO_2−x synthesized via a calcination method on the electrochemical performance of dual Mg/Li-ion batteries are investigated. The dual-ion cell shows excellent rate capabilities up to 40 C and outstanding cyclability up to 2500 cycles.

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Article information

DOI: https://doi.org/10.1039/D0CC03099F
Article type: Communication
Submitted: 29 Apr 2020
Accepted: 03 Jun 2020
First published: 04 Jun 2020

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Chem. Commun., 2020,56, 8039-8042

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Ultrahigh rate capability and long cycling stability of dual-ion batteries enabled by TiO₂ microspheres with abundant oxygen vacancies

T. Mu, J. Zhang, R. Shi, Y. Zhu, J. Zhu, Y. Liu, Y. Zhang and L. Li, Chem. Commun., 2020, 56, 8039 DOI: 10.1039/D0CC03099F

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