Sandwich shelled TiO2@Co3O4@Co3O4/C hollow spheres as anode materials for lithium ion batteries

Zheng Liu; Mengkang Yu; Xiaodan Wang; Fengyu Lai; Chao Wang; Nan Yu; Hongxia Sun; Baoyou Geng

doi:10.1039/D0CC07306G

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Sandwich shelled TiO₂@Co₃O₄@Co₃O₄/C hollow spheres as anode materials for lithium ion batteries†

Zheng Liu,^a Mengkang Yu,^a Xiaodan Wang,^a Fengyu Lai,^a Chao Wang,^a Nan Yu,^a Hongxia Sun^a and Baoyou Geng

*^a

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* Corresponding authors

^a College of Chemistry and Materials Science, Anhui Key Laboratory of Functional Molecular Solids, Ministry of Education, The Key Laboratory of Electrochemical Clean Energy of Anhui Higher Education Institutes, Anhui Normal University, Wuhu, China
E-mail: bygeng@mail.ahnu.edu.cn

Abstract

A sandwich shelled hollow TiO₂@Co₃O₄@Co₃O₄/C composite is synthesized by consecutive coating of Co₃O₄ nanosheets and TiO₂ particles on Co₃O₄/C hollow spheres. The composite delivers an excellent lithium storage performance, maintaining 1081.78 mA h g⁻¹ after 100 cycles at 0.2 A g⁻¹ and 772.23 mA h g⁻¹ after 300 cycles at 1 A g⁻¹, due to its superior structure combining the advantages of each component with favorable electron-transfer, Li⁺-diffusion properties, and distinguished stability.

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Article information

DOI: https://doi.org/10.1039/D0CC07306G
Article type: Communication
Submitted: 05 Nov 2020
Accepted: 08 Jan 2021
First published: 08 Jan 2021

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Chem. Commun., 2021,57, 1786-1789

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Sandwich shelled TiO₂@Co₃O₄@Co₃O₄/C hollow spheres as anode materials for lithium ion batteries

Z. Liu, M. Yu, X. Wang, F. Lai, C. Wang, N. Yu, H. Sun and B. Geng, Chem. Commun., 2021, 57, 1786 DOI: 10.1039/D0CC07306G

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