The special demand of wearable electronic devices has resulted in a growing interest in developing key electrode materials for high-performance flexible lithium-ion batteries. In this article, a flexible bimetallic zeolite imidazolium salt polyacrylonitrile framework was prepared by a simple electrospinning method, and directly used as self-supported anode material for high-performance lithium-ion batteries after subsequent heat treatment. Benefiting from their unique morphology and bimetallic synergism, as-prepared Co@ZnO/carbon nanofibers (CNFs) combination of MOFs derivatives and carbon nanofibers, exhibit excellent electrochemical performance for flexible lithium-ion batteries. The sample Co@ZnO/CNFs-2 delivers a specific capacity of 1104.9 mAh·g⁻¹ after 150 cycles at a current density of 100 mA·g⁻¹, and even 935.6 and 718.1 mAh·g⁻¹ at high current density of 0.5 and 1 A·g⁻¹, respectively. Remarkably, no noticeable capacity fading is observed even after 260 charge/discharge cycles.

可穿戴电子设备的特殊需求导致人们对开发用于高性能柔性锂离子电池的关键电极材料的兴趣与日俱增。本文通过简单的静电纺丝法制备了一种柔性双金属沸石咪唑鎓盐聚丙烯腈骨架，并在随后的热处理后直接用作高性能锂离子电池的自支撑阳极材料。得益于它们独特的形态和双金属协同作用，MOF衍生物和碳纳米纤维的合成Co @ ZnO /碳纳米纤维（CNF）组合物具有出色的电化学性能，可用于柔性锂离子电池。Co @ ZnO / CNFs-2样品在150次循环后以100 mA·g的电流密度提供的比容量为1104.9 mAh·g ^-1-1，甚至在0.5和1 A·g ^-1的高电流密度下甚至达到935.6 mAh·g ^-1。值得注意的是，即使经过260次充/放电循环，也没有观察到明显的容量衰减。