Issue 35, 2024

Preparation of Zn3Nb2O8 anode material for high-performance lithium/sodium-ion batteries

Abstract

Niobium-based oxides (M-Nb-O) as promising lithium/sodium-ion storage anode materials have attracted much attention. More types of niobium-based oxides are prepared in order to provide more candidates for anode materials. Herein, Zn3Nb2O8 as a novel intercalation-type anode material has been reported for the first time. Arborescent Zn3Nb2O8 particles (Zn3Nb2O8-A) and stump-like Zn3Nb2O8 particles (Zn3Nb2O8-B) have been prepared by solid-state and solvothermal methods, respectively. Benefiting from the microsized stump-like structure and the exposure of the (110) facet, Zn3Nb2O8-B delivers superior long-term cycling stability with a 139.6% capacity retention (291.8 mA h g−1) over 650 cycles at 0.5 A g−1 and a large reversible specific capacity of 91.4 mA h g−1 at 4.0 A g−1 in lithium-ion batteries. Furthermore, the Zn3Nb2O8-B electrode exhibits outstanding cycling stability (100.1 mA h g−1 with 94.5% capacity retention after 400 cycles at 0.5 A g−1) in sodium-ion batteries. The excellent electrochemical performance of the stump-like Zn3Nb2O8-B materials can be attributed to the exposure of the (110) facet, enlarged interlayer spacing, small charge transfer resistance, and high pseudocapacitive contribution. Therefore, Zn3Nb2O8-B has great application prospects as an anode material for lithium/sodium-ion storage.

Graphical abstract: Preparation of Zn3Nb2O8 anode material for high-performance lithium/sodium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
17 May 2024
Accepted
02 Jul 2024
First published
14 Aug 2024
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2024,14, 25571-25578

Preparation of Zn3Nb2O8 anode material for high-performance lithium/sodium-ion batteries

X. Yin, S. Cheng, Y. Zhang and C. Liu, RSC Adv., 2024, 14, 25571 DOI: 10.1039/D4RA03616F

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