Issue 64, 2020

Synthesis of a three-dimensional cross-linked Ni–V2O5 nanomaterial in an ionic liquid for lithium-ion batteries

Abstract

A three-dimensional cross-linked Ni–V2O5 nanomaterial with a particle size of 250–300 nm was successfully prepared in a 1-butyl-3-methylimidazole bromide ionic liquid (IL). The formation of this structure may follow the rule of dissolution–recrystallization and the ionic liquid, as both a dissolution and structure-directing agent, plays an important role in the formation of the material. After calcination of the precursor, the active material (Ni–V2O5–IL) was used as an anode for lithium-ion batteries. The designed anode exhibited excellent electrochemical performance with 765 mA h g−1 at a current density of 0.3 A g−1 after 300 cycles, which is much higher than that of a NiVO–W material prepared via a hydrothermal method (305 mA h g−1). These results show the remarkable superiority of this novel electrode material synthesized in an ionic liquid.

Graphical abstract: Synthesis of a three-dimensional cross-linked Ni–V2O5 nanomaterial in an ionic liquid for lithium-ion batteries

Article information

Article type
Paper
Submitted
09 Aug 2020
Accepted
15 Oct 2020
First published
26 Oct 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 39137-39145

Synthesis of a three-dimensional cross-linked Ni–V2O5 nanomaterial in an ionic liquid for lithium-ion batteries

Y. Zhao, D. Gao, R. Guan, H. Li, N. Li, G. Li and S. Li, RSC Adv., 2020, 10, 39137 DOI: 10.1039/D0RA06868C

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