金属硼化物在Li-S电池正极载体材料中的研究进展

锂硫（Li-S）电池因其高的能量密度、较低的生产成本和环境友好性能而受到广泛关注。其中正极载体材料的合理设计与合成成为解决当前Li-S电池所面临的缓慢反应动力学、实际电池容量及库伦效率低及循环稳定性不足的关键。金属硼化物对多硫化物因具有良好的化学吸附/催化性能，从而在Li-S电池正极载体材料中得到广泛关注。本文详细介绍了一系列典型金属硼化物如MgB2、Co2B、TiB2、MoBx、ZrB2在Li-S电池正极载体材料中的应用，阐述了不同材料提高Li-S电池性能的方法和策略，并且深入分析了其独特的电化学作用机制。本综述为设计与合成Li-S电池用金属硼化物高效正极载体材料提供了指导。

Research progress on metal borides as cathode carrier materials for Li-S batteries

:Lithium-sulfur batteries have attracted wide attention due to their high energy density, low production cost and environmentally friendly performance. Among them, the reasonable design and synthesis of positive electrode carrier material is the key to solve the slow reaction kinetics, low capacity and coulomb efficiency of actual battery and insufficient cycle stability of current Li-S battery.Metallic borides have been widely used as cathode support materials for Li-S batteries due to their excellent chemical adsorption/catalytic properties for polysulfides.In this paper, a series of typical metal borides such as MgB2, Co2B, TiB2, MoBx, ZrB2, are introduced in detail in the application of Li-S battery cathode carrier materials. The methods and strategies of different materials to improve the performance of Li-S batteries are introduced, and their unique electrochemical action mechanism are explored. This review provides guidance for the design and synthesis of high-efficiency metal borides for lithium-sulfur battery positive carrier materials.