有机电极材料(OEM)由于其丰富的资源和灵活的可设计性,在水性锌离子电池(AZIBs)中的应用引起了广泛的关注。然而,高性能OEM的发展受到其高溶解度的强烈阻碍,导电性差,缓慢的离子扩散动力学,和难以与Zn2+配位。在这里,灵感来自面料工艺品,我们通过从点到线和平面的构建块的迭代进化设计了一个坚固的聚合物织物。由点到线的演变不仅可以提高结构稳定性和电导率,而且可以调节活性位点的排列,使Zn2的存储成为可能。除了进一步增强上述性能外,从直线到平面的演变也可以促进离子迁移的非干扰通道的构建。因此,聚(1,4,5,8-萘四羧酸二酐/2,3,5,6-四氨基环己-2,5-二烯-1,4-二酮)(PNT)聚合物织物具有最增强的结构稳定性,优化的活动现场布置,改善导电性,和合适的离子通道,在AZIB中,在56.9mgcm-2的高质量负载下,达到创纪录的高容量保留率为96%,在150C(1C=200mAg-1)下,稳定的循环寿命超过20,000次循环。此外,PNT对有机电解质系统中的各种离子具有普遍性,如Li/Na/K离子电池。我们对聚合物织物阴极的迭代设计为先进OEM的开发奠定了基础,以促进金属离子电池的性能。
Organic electrode materials (OEMs) have attracted significant attention for use in aqueous zinc-ion batteries (AZIBs) because of their abundant resources and flexible designability. However, the development of high-performance OEMs is strongly hindered by their high solubility, poor conductivity, sluggish ion diffusion kinetics, and difficult coordination toward Zn2+. Herein, inspired by fabric crafts, we have designed a robust polymer fabric through the iterative evolution of the building blocks from point to line and plane. The evolution from point to line could not only improve the structural stability and electrical conductivity but also adjust the active site arrangement to enable the storage of Zn2+. In addition to further boosting the aforementioned properties, the evolution from line to plane could also facilitate the construction of noninterference channels for ion migration. Accordingly, the poly(1,4,5,8-naphthalenetetracarboxylic dianhydride/2,3,5,6-tetraaminocyclohexa-2,5-diene-1,4-dione) (PNT) polymer fabric has the most enhanced structural stability, optimized active site arrangement, improved electrical conductivity, and suitable ion channels, resulting in a record-high capacity retention of 96% at a high mass loading of 56.9mg cm-2 and a stable cycle life of more than 20,000 cycles at 150C (1C=200 mA g-1) in AZIBs. In addition, PNT exhibits universality for a wide range of ions in organic electrolyte systems, such as Li/Na/K-ion batteries. Our iterative design of polymer fabric cathode has laid the foundation for the development of advanced OEMs to promote the performance of metal-ion batteries.