Xie Peng, Wang Bin, Chen Peng, Wang Siyuan, Xin Chengjie, Li Wenqi, Chen Buzhuo, Chen Ding
State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, 410082 Changsha, China.
Institute of Laser Manufacturing, Henan Academy of Sciences, Zhengzhou 450046, PR China.
ACS Appl Mater Interfaces. 2024 Oct 30;16(43):58587-58597. doi: 10.1021/acsami.4c11574. Epub 2024 Oct 20.
The inherent challenges associated with aqueous zinc ion batteries (AZIBs), such as low energy density and slow diffusion kinetics, pose significant obstacles to their widespread adoption as energy storage systems. These limitations mainly stem from the nongreen and complex preparation process of high-quality cathode materials. In this study, we propose an approach utilizing microwave-assisted ball milling to expedite the fabrication of vanadium-based intercalated nanomaterials, aiming at solving the problem of prolonged reaction at high temperatures, which is unavoidable in the preparation of anode materials. NaVO (NVO) nanorods were synthesized in just 40 min under aqueous solvent conditions. These nanorods exhibit remarkable electrochemical properties, including a high specific capacity of 564 mA h g at 0.1 A g and an excellent cycle life, maintaining 164.2 mA h g after 5000 cycles at 5 A g. Additionally, the incorporation of Na into the electrolyte effectively mitigates the stripping of Na and the deposition of Zn dendrimers from NVO, further contributing to enhanced cycling stability. The findings of this study offer a promising approach to the rapid and efficient synthesis of high-quality ZIB cathode materials.
水系锌离子电池（AZIBs）存在一些内在挑战，如能量密度低和扩散动力学缓慢，这对其作为储能系统的广泛应用构成了重大障碍。这些限制主要源于高质量阴极材料的非绿色且复杂的制备过程。在本研究中，我们提出一种利用微波辅助球磨的方法来加快钒基插层纳米材料的制备，旨在解决在阳极材料制备中不可避免的高温下长时间反应的问题。在水性溶剂条件下仅40分钟就合成了NaVO（NVO）纳米棒。这些纳米棒表现出显著的电化学性能，包括在0.1 A g下具有564 mA h g的高比容量和出色的循环寿命，在5 A g下5000次循环后保持164.2 mA h g。此外，在电解质中加入Na有效地减轻了Na的剥离和NVO上锌树枝晶的沉积，进一步有助于提高循环稳定性。本研究结果为快速高效合成高质量ZIB阴极材料提供了一种有前景的方法。
