Sodium ion hybrid capacitors (SIHCs) are regarded as advanced power supply systems. Nevertheless, the kinetics imbalance of cathode and anode suppresses the further performance improvement of SIHCs. The carbonaceous anode materials are promising and many strategies have been utilized to increase the capacity of sloping region or accelerate the reaction rate of plateau region. However, it is still challenging to simultaneously realize high mesopore/micropore volume ratio, large interlayer distance (>0.37 nm), and abundant and favorable heteroatoms-doping by a simple method. Herein, we report N, P, O ternary-doped mesoporous carbon (PNPOC-T, T = 700, 800 or 900) with large interlayer distance (∼0.4 nm) as anode materials. The PNPOC-T were prepared by a simple in-situ polymerization of aniline and phytic acid on the exfoliated graphitic nitrogen carbide (g-C₃N₄) and subsequent carbonization. The obtained PNPOC-800 exhibits an excellent rate performance (101.5 mA·h ·g⁻¹ at 20 A·g⁻¹), which can be attributed to the high surface-controlled capacitive behavior ratio and rapid ion diffusion. The optimum SIHCs display a high energy density of 105.48 W·h·kg⁻¹ and a high power density of 13.59 kW·kg⁻¹. Furthermore, the capacitance retention rate of SIHCs can reach 87.43% after 9 000 cycles at 1 A·g⁻¹.

钠离子混合电容器（SIHC）被认为是先进的电源系统。然而，正极和负极的动力学不平衡抑制了 SIHC 的进一步性能提升。碳质负极材料很有前景，并且已经采用了许多策略来增加斜坡区的容量或加快高原区的反应速率。然而，通过简单的方法同时实现高中孔/微孔体积比、大层间距离（> 0.37 nm）和丰富且有利的杂原子掺杂仍然具有挑战性。在此，我们报道了具有大层间距离（~0.4 nm）的 N、P、O 三元掺杂介孔碳（PNPOC- T、T  = 700、800 或 900）作为负极材料。PNPOC- T通过苯胺和植酸在片状石墨氮碳化物（gC ₃ N ₄）上的简单原位聚合和随后的碳化制备。获得的 PNPOC-800 表现出优异的倍率性能（101.5 mA·h·g ^-1 at 20 A·g ^-1），这可归因于高表面控制电容行为比和快速离子扩散。最佳 SIHC 显示出 105.48 W·h·kg ^-1的高能量密度和 13.59 kW·kg ^-1的高功率密度。^{此外，SIHCs在1 A·g -1}下循环9 000次后电容保持率可达87.43% 。