To meet the requirements for high energy/power density, safety and flexibility of wearable electronic devices simultaneously, a solid-state zinc-ion capacitor (ZIC) is assembled by integrating zinc nanosheets anode and porous carbon cathode with gelatin gel as electrolyte. Herein, the oxygen-enriched three-dimensional porous carbon has been synthesized as cathode of ZIC via a facile combustion and sequential acid-treatment process. Taking advantages of the rich oxygen-containing functional groups to provide pseudocapacitance and the specific pore structure of porous carbon to endow fast electrochemical kinetics of cathode, the assembled ZIC could deliver the superb specific capacity of 132.7 mA h g^-1, excellent energy density of 82.36 W h kg^-1 and superior cycling stability with 87.6% capacity retention over 10,000 cycles at a current density of 1.0 A g^-1. Impressively, the assembled solid-state ZIC based on OPC is flexible enough to withstand various deformations including bending and twisting at large angles, which are promising to be applied in portable electronics.

为了同时满足可穿戴电子设备的高能量/功率密度，安全性和灵活性的要求，通过将锌纳米片阳极和多孔碳阴极与明胶作为电解质集成在一起，组装了固态锌离子电容器（ZIC）。在此，已经通过简便的燃烧和顺序的酸处理工艺合成了富氧的三维多孔碳作为ZIC的阴极。利用丰富的含氧官能团提供假电容和多孔碳的特定孔结构来赋予阴极快速的电化学动力学，组装后的ZIC可以提供132.7 mA hg ^-1的超高比容量，出色的能量密度为82.36体重^-1以及出色的循环稳定性，在1.0 A g ^-1的电流密度下，在10,000次循环中的容量保持率为87.6％。令人印象深刻的是，基于OPC的组装式固态ZIC具有足够的柔性，可以承受各种变形，包括大角度的弯曲和扭曲，有望在便携式电子产品中应用。