The flexible transparent supercapacitors have been considered as one of the key energy-storage components to power the smart portable electronic devices. However, it is still a challenge to explore flexible transparent capacitive electrodes with high rate capability. Herein, conductive Ni₃(HITP)₂ (HITP = 2,3,6,7,10,11-hexaiminotriphenylene) thin films are adopted as capacitive electrodes in flexible transparent supercapacitors. The Ni₃(HITP)₂ electrode possesses the excellent optoelectronic property with optical transmittance (T) of 78.4% and sheet resistance (R_s) of 51.3 Ω sq^–1, remarkable areal capacitance (C_A) of 1.63 mF cm⁻² and highest scan rate up to 5000 mV s⁻¹. The asymmetric Ni₃(HITP)₂//PEDOT:PSS supercapacitor (T = 61%) yields a high C_A of 1.06 mF cm⁻² at 3 μA cm⁻², which maintains 77.4% as the current density increases by 50 folds. The remarkable rate capability is ascribed to the collaborative advantages of low diffusion resistance and high ion accessibility, resulting from the intrinsic conductivity, short oriented pores and large specific areas of Ni₃(HITP)₂ films.

柔性透明超级电容器被认为是为智能便携式电子设备供电的关键储能元件之一。然而，探索具有高倍率能力的柔性透明电容电极仍然是一个挑战。在此，导电 Ni ₃ (HITP) ₂ (HITP = 2,3,6,7,10,11-hexaiminotriphenylene) 薄膜被用作柔性透明超级电容器中的电容电极。Ni ₃ (HITP) ₂电极具有优异的光电性能，透光率（T）为78.4%，薄层电阻（R _s）为51.3 Ω sq ^–1，面积电容（C _A) 的 1.63 mF cm ^-2和最高扫描速率高达 5000 mV s ^-1。不对称 Ni ₃ (HITP) ₂ //PEDOT:PSS 超级电容器 ( T  = 61%)在 3 μA cm ^-2时产生 1.06 mF cm ^-2的高C _A ，当电流密度增加 50 倍时保持 77.4% . 出色的倍率性能归因于低扩散阻力和高离子可及性的协同优势，这是由 Ni ₃ (HITP) ₂薄膜的本征电导率、短取向孔和大比表面积引起的。