A series of nickel porous carbon (Ni-PC-x, x represents solvothermal temperature) materials with controllable morphology, which has the different catalytic effect of the metallic Ni catalyst derived from Ni-MOF and Li+ transfer efficiency, are designed and synthesized through the simple solvothermal method and pyrolysis. Among the composites, the S/Ni-PC-160 cathode exhibits excellent long-cycle stability (an average capacity fading rate of only 0.14% per cycle for 300 cycles at 1C), and wonderful rate performance with a capacity of 815.5 mAh·g−1 at 1C. The improved performance of S/Ni-PC-160 is attributed to the catalysis derived from Ni nanoparticles and rapid Li+ diffusion from a 3D honeycomb structure. This work provides an important reference value for the potential application of the relationship between morphology and electrochemical performance in LiS batteries.

设计合成了一系列形貌可控的镍多孔碳（Ni-PC-x，x代表溶剂热温度）材料，具有与Ni-MOF衍生的金属镍催化剂不同的催化效果和Li+转移效率，通过简单的溶剂热法和热解法。在这些复合材料中，S/Ni-PC-160正极表现出优异的长循环稳定性（1C下300次循环的平均容量衰减率仅为0.14%），以及容量为815.5 mAh·g的出色倍率性能。 -1 在 1C。S/Ni-PC-160 的改进性能归因于源自 Ni 纳米颗粒的催化作用和来自 3D 蜂窝结构的快速 Li+ 扩散。S 电池。