Mn-based zinc ion battery has the advantages of low cost and high performance, which makes it the promising energy storage system. However, the poor conductivity and the agglomeration in the synthesis process of manganese-based materials restrict the performance of batteries. Herein, the Se-doped MnS/Ti₃C₂T_x (Se-MnS/Ti₃C₂T_x) composite material derived from Mn-based metal-organic framework is reported. Electrochemical tests show that Se-doped could generate S defects and enhance the electrochemical activity of MnS. At the same time, the introduction of Ti₃C₂T_x substrate is conducive to exposing more sulfur defects and improving the utilization rate of defects. In the mechanism study, it is found that Se-MnS/Ti₃C₂T_x is transformed into S/Se co-doped Mn₃O₄ at the first charge, which innovatively elucidated the behavior of S/Se during activation. In the electrochemical performance test, the specific capacity can reach 74.7 mAh·g⁻¹ at 5.0 A·g⁻¹. In addition, the Zn-Ti₃C₂T_x membrane electrode is prepared by vacuum filtration as the zinc-poor anode, which is assembled into the rocking chair full battery to avoid dendrite growth and exhibit excellent rate performance. The addition of Zn²⁺ weakens the electrostatic repulsion between the interlayers of MXene, and the formation of the folded morphology aids the penetration of the electrolyte. At 1.0 A·g⁻¹, the capacity can reach 50.6 mAh·g⁻¹. This work is helpful to promote the research and development of the reaction mechanism of manganese based rocking chair batteries.

锰基锌离子电池具有低成本、高性能的优点，使其成为极具前景的储能系统。然而，锰基材料的导电性差和合成过程中的团聚限制了电池的性能。本文报道了源自Mn基金属有机骨架的Se掺杂MnS/Ti ₃ C ₂ T _x (Se-MnS/Ti ₃ C ₂ T _{x )复合材料。}电化学测试表明，Se掺杂可以产生S缺陷，增强MnS的电化学活性。同时Ti ₃ C ₂ T _x基体的引入有利于暴露更多的硫缺陷，提高缺陷的利用率。在机理研究中，发现Se-MnS/Ti ₃ C ₂ T _x在第一次充电时转化为S/Se共掺杂Mn ₃ O _{4 ，创新性地阐明了S/Se在活化过程中的行为。}电化学性能测试中， 5.0 A·g ^-1时比容量可达74.7 mAh·g ^-1。此外，通过真空过滤制备Zn-Ti ₃ C ₂ T _x膜电极作为贫锌阳极，将其组装成摇椅全电池以避免枝晶生长并表现出优异的倍率性能。^{Zn 2+}的添加减弱了MXene层间的静电斥力，折叠形貌的形成有助于电解质的渗透。在1.0 A·g ^-1时，容量可达50.6 mAh·g ^-1。该工作有助于推动锰基摇椅电池反应机理的研究与开发。