Discharged Na5V12O32 Nanowire Arrays Coated with Cu-Cu2O for High Performance Lithium-Ion Batteries

Author:

Yang Guangjie,Cui Mengmeng,Han Tao,Fang DongORCID,Lu Xingjie,Peng Sui,Ruzimuradov Olim,Yi Jianhong

Abstract

Sodium vanadate have been widely used as a lithium-ion battery anode. However, its further application is restricted by the capacity attenuation during cycles because of its easy solubility in electrolyte, huge structural change, and low conductivity. Here, a lithium-ion battery electrode based on Cu-Cu2O coated Na5V12O32 nanowire arrays using a predischarge-electrodeposition method is freported. Remarkably, in the Cu-Cu2O@Na5V12O32 electrode, the Na5V12O32 nanowires function as the skeleton, and Cu-Cu2O nanoparticles function as the coating layer. At a specific current of 50 mA g−1, the composite electrode exhibits discharge and charge capacity of 837 and 821 mAh g−1 after 80 cycles, respectively, which is much higher than that of the Na5V12O32 nanowires electrode. This research provides a new pathway to explore electrode materials with enhanced electrochemical performance.

Funder

Key Special Projects of the Ministry of Science and Technology

the State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals

Chongqing Key Laboratory of Materials Surface & Interface Science

Henan Province Science and Technology Tackling Plan Project

Major Special Projects in Yunnan Province

Publisher

The Electrochemical Society

Subject

Materials Chemistry,Electrochemistry,Surfaces, Coatings and Films,Condensed Matter Physics,Renewable Energy, Sustainability and the Environment,Electronic, Optical and Magnetic Materials

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