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Polyarylimide and porphyrin based polymer microspheres for zinc ion hybrid capacitors
Chemical Engineering Journal ( IF 15.1 ) Pub Date : 2020-09-19 , DOI: 10.1016/j.cej.2020.127038
Fu-Zhi Cui , Zaichun Liu , De-Li Ma , Lili Liu , Ting Huang , Panpan Zhang , Deming Tan , Faxing Wang , Guo-Fang Jiang , Yuping Wu

Aqueous zinc-ion hybrid capacitors (ZIHCs) are promising energy storage devices for grid-scale energy storage due to the low cost, intrinsic non-flammability, environmental friendliness, and high power densities. Currently, most reported ZIHCs employed zinc metals as anodes. However, uncontrollable Zn dendrite growth and the huge volume change of Zn metal anode during the stripping/plating process greatly hinder the practical application of ZIHCs. Thus, it is highly desirable to develop alternative anode materials with favorable electrochemical performances. Herein, we demonstrate a polymer from polyarylimide and porphyrin as a new anode material for ZIHCs. The Zn ion storage electrochemistry in this porous organic polymer-tetra(4-aminophenyl)porphyrin-1,4,5,8-naphthalenetetracarboxylic dianhydride (POP-TAPP-NTCA) is investigated by cyclic voltammetry analysis, galvanostatic charge/discharge measurement, electrochemical impedance spectroscopy, kinetic analysis, and density functional theory calculation. The fabricated ZIHC based on POP-TAPP-NTCA anode exhibits an energy density of 48 Wh kg−1 and capacitance retention of 90% after 1100 cycles. This work will inspire the exploration of new anode materials for Zn ion storage and facilitate the development of safe electrochemical energy storage.



中文翻译:

锌离子混合电容器用聚芳酰亚胺和卟啉基聚合物微球

水性锌离子混合电容器(ZIHCs)具有低成本,固有的不易燃性,环境友好性和高功率密度等优点,是用于电网规模储能的有前途的储能设备。当前,大多数报道的ZIHCs使用锌金属作为阳极。然而,在剥离/镀覆过程中,无法控制的Zn枝晶生长和大量的Zn金属阳极体积变化极大地阻碍了ZIHC的实际应用。因此,非常需要开发具有良好电化学性能的替代阳极材料。在这里,我们展示了一种由聚芳酰胺和卟啉组成的聚合物,作为ZIHCs的新型阳极材料。该多孔有机聚合物-四(4-氨基苯基)卟啉-1,4,5中的锌离子存储电化学 通过循环伏安分析,恒电流充/放电测量,电化学阻抗谱,动力学分析和密度泛函理论计算研究了8-萘四甲酸二酐(POP-TAPP-NTCA)。基于POP-TAPP-NTCA阳极制造的ZIHC的能量密度为48 Wh kg-1和1100次循环后的电容保持率为90%。这项工作将启发探索用于锌离子存储的新型阳极材料,并促进安全电化学能量存储的发展。

更新日期:2020-09-20
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