Zhang Haode, Hu Shan, Tang Xinlei, Tian Yu, Zhao Jiawen, Sun Haohao, Jian Zelang, Chen Wen
State Key Laboratory of Advanced Technology for Synthesis and Processing, School of Material Science and Engineering, Wuhan University of Technology, Wuhan 430070, P. R. China.
Dalton Trans. 2023 Dec 12;52(48):18214-18219. doi: 10.1039/d3dt03294a.
Rechargeable batteries employing ammonium (NH) ions have attracted widespread interest owing to the abundant resources, eco-friendliness, and sustainability of NH ions. Herein, an organic-inorganic hybrid is applied to organic NH ion batteries. A poly (3,4-ethylene dioxythiophene) (PEDOT)-intercalated vanadium oxide nanowire (noted as VO-P-) is applied for organic NH ion storage. VO-P- with the optimal content of PEDOT showed an interlayer spacing (-spacing) expanded to 1.82 nm, exhibiting an ultrahigh initial coulombic efficiency of 91% and a reversible capacity of 163 mA h g. A significant improvement in NH ion storage was achieved due to the large interlayer spacing and conductive polymer PEDOT. Combining X-ray photoelectron spectroscopy (XPS) and multi-sweep cyclic voltammetry tests, the NH ion storage mechanism of VO-P- was clearly revealed. This study provides a new strategy for designing high-performance organic ammonium batteries.
由于铵（NH）离子资源丰富、生态友好且可持续，采用铵离子的可充电电池引起了广泛关注。在此，一种有机-无机杂化物被应用于有机铵离子电池。一种聚（3,4-亚乙基二氧噻吩）（PEDOT）插层的氧化钒纳米线（记为VO-P-）被用于有机铵离子存储。具有最佳PEDOT含量的VO-P-显示出层间距（-间距）扩大到1.82纳米，展现出91%的超高初始库仑效率和163 mA h g的可逆容量。由于大的层间距和导电聚合物PEDOT，铵离子存储有了显著改善。结合X射线光电子能谱（XPS）和多扫描循环伏安测试，清楚地揭示了VO-P-的铵离子存储机制。本研究为设计高性能有机铵电池提供了一种新策略。
