The energy density of supercapacitors can be improved through rapid surface reconstruction of electrode materials in an alkaline medium. Transition metal sulfides (TMSs), including Co₉S₈, are widely used as energy storage electrode materials owing to their excellent structural characteristics. However, systematic research dealing with the enhancement of Co₉S₈ reconstruction ability induced by Se doping has not well been investigated. Herein, an electron orbital modulation strategy was developed to promote the reconfiguration capability of Co₉S₈ by substitution of the Se element. The theoretical simulation and experimental characterization confirmed the successful introduction of the Se element, resulting in more polarized charge distribution in Co₉S₈ and better charge transfer ability. The improved adsorption capacity of OH⁻ also enhanced the intensity of surface reactions, as well as effectively increased the refactoring rate. The optimized Co₉S_5.1Se_2.9 exhibited a specific capacitance of 1788.1 F g⁻¹ at 1 A g⁻¹. The assembled flexible asymmetric supercapacitor delivered a maximum energy density of 54.9 Wh kg⁻¹. Overall, the proposed strategy can effectively be used to construct high energy density electrode materials with optimized reconstruction of dynamic rates through effective modulation of electron orbitals.

通过在碱性介质中对电极材料进行快速表面重构，可以提高超级电容器的能量密度。_{包括Co 9} S ₈在内的过渡金属硫化物（TMS）由于其优异的结构特性而被广泛用作储能电极材料。_{然而，关于处理Se掺杂引起的Co 9} S ₈重构能力增强的系统研究还没有得到很好的研究。_{在此，开发了电子轨道调制策略以提高Co 9} S ₈的重构能力通过替换 Se 元素。理论模拟和实验表征证实了Se元素的成功引入，导致Co ₉ S ₈中更极化的电荷分布和更好的电荷转移能力。^{OH -}吸附能力的提高也增强了表面反应的强度，并有效地提高了重构率。优化的 Co ₉ S _5.1 Se _2.9在 1 A g ^{-1下表现出 1788.1 F g -1}的比电容。^{组装的柔性非对称超级电容器提供了 54.9 Wh kg −1}的最大能量密度. 总的来说，所提出的策略可以有效地用于构建高能量密度电极材料，通过有效调制电子轨道优化重建动态速率。