期刊
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
卷 168, 期 11, 页码 -出版社
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1945-7111/ac39dc
关键词
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资金
- fund of Chongqing Key Laboratory of Materials Surface & Interface Science [KFJJ2013]
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals [SKL-SPM-202023]
- Major Special Projects in Yunnan Province [202002AB080001]
- Henan Province Science and Technology Tackling Plan Project [192102310233]
- Key Special Projects of the Ministry of Science and Technology [2021YFE0104300, MUK-2021-45]
A lithium-ion battery electrode based on Cu-Cu2O coated Na5V12O32 nanowire arrays was reported, showing high discharge and charge capacity during cycles. In this electrode, Na5V12O32 nanowires act as the skeleton, while Cu-Cu2O nanoparticles serve as the coating layer. These findings provide a new pathway to explore electrode materials with enhanced electrochemical performance.
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. (C) 2021 The Electrochemical Society (ECS). Published on behalf of ECS by IOP Publishing Limited.
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