Issue 7, 2019

Hollow mesoporous hetero-ZnO/ZnMnO3 microspheres: template-free formation process and enhanced lithium storage capability towards Li-ion batteries as a competitive anode

Abstract

Hierarchical hollow porous structures have attracted enormous attention in the field of emerging electrochemical energy storage. Spinel ZnMnO3 stands out from other metal oxide-based anodes thanks to its affordability, environmental friendliness, safety and large capacity. However, its modestly high-rate capability and cycling stability should be addressed for advanced Li-ion batteries (LIBs) via smartly engineering the electrode structures/components using simple strategies. In this contribution, we devised a scalable bottom-up methodology for the fabrication of hollow mesoporous ZnO/ZnMnO3 (ZZMO) microspheres. The underlying template-free formation mechanism was rationally proposed. Benefiting from synergistic contributions from the bi-component-active ZnO–ZnMnO3 hetero-structure at the nanoscale, hollow and mesoporosity, the resultant hollow ZZMO microspheres were endowed with a large reversible capacity of ∼695 mA h g−1 at 1 A g−1, as well as stable cycling performance and a remarkable rate capability when utilized as a competitive anode for LIBs. Furthermore, the quantitative analysis demonstrates that the main faradaic capacitive contribution accounts for the outstanding lithium storage of the ZZMO anode. Promisingly, the LiNi0.8Co0.1Mn0.1O2//ZZMO full battery achieved a capacity of ∼121.0 mA h g−1 at 0.1 A g−1, and energy density of ∼188.6 W h kg−1. More significantly, these results highlight that hollow porous ZZMO microspheres would be a promising low-cost anode for next-generation LIBs.

Graphical abstract: Hollow mesoporous hetero-ZnO/ZnMnO3 microspheres: template-free formation process and enhanced lithium storage capability towards Li-ion batteries as a competitive anode

Supplementary files

Article information

Article type
Paper
Submitted
13 Nov 2018
Accepted
11 Jan 2019
First published
13 Jan 2019

J. Mater. Chem. A, 2019,7, 3264-3277

Hollow mesoporous hetero-ZnO/ZnMnO3 microspheres: template-free formation process and enhanced lithium storage capability towards Li-ion batteries as a competitive anode

Y. Zhang, Z. Wang, F. U. Zaman, Z. Zhao, X. Sun, J. Zhang, L. Hou and C. Yuan, J. Mater. Chem. A, 2019, 7, 3264 DOI: 10.1039/C8TA10911G

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements