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Updated: Jun 4, 2025
In Situ Neutron Powder Diffraction Using Custom-made Lithium-ion Batteries
Published on: November 10, 2014
An all-vanadium-based lithium-ion full battery with hierarchical yolk-shell structure electrodes
Jie Zhang1,2, Kongjun Zhu1, Zhihan Kong1,2
1State Key Laboratory of Mechanics and Control for Aerospace Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China. kjzhu@nuaa.edu.cn.
Abstract:
An all-vanadium-based lithium-ion full battery is successfully assembled with hierarchical micro-nano yolk-shell structures V2O5 and V2O3 as the cathode and anode, which were obtained through a facile solvothermal method with heat treatment under different atmospheres. When used as the cathode of the lithium-ion battery, the hierarchical micro-nano yolk-shell V2O5 demonstrated higher capacities than bulk V2O5, commercial LiFePO4, and LiNi0.8Co0.1Mn0.1O2 cathodes at various current densities. The all-vanadium-based lithium-ion full battery shows good cycle performance at 0.1C and stable charge/discharge abilities at large current densities. The electrochemical performance of the full battery results from the low impedance and pseudocapacitance-dominated lithium storage mechanism derived from the micro-nano yolk-shell structure.
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