稀土化合物应用于高能锂硫电池的研究进展

锂硫电池是极具开发潜力和应用前景的新一代高比能金属锂二次电池。拥有独特4f轨道的稀土元素及其化合物具有特殊的光、电、磁与催化等性质,研究发现将稀土化合物引入锂硫电池体系能够有效解决制约锂硫电池发展的穿梭效应和锂枝晶问题并显著提升电池性能。本文全面综述了稀土化合物应用于锂硫电池正极、隔膜和电解质的最新研究进展和动态及其解决锂硫电池关键问题的作用机制,并展望了稀土化合物应用于锂硫电池的未来发展方向。

Advances in the application of rare earth compounds for high-energy-density lithium sulfur batteries

High-energy-density lithium-sulfur batteries(LSB)are considered as the most promising next-generation rechargeable lithium-metal battery system.Rare earth(RE)elements with unique 4 f-orbital and their compounds have outstanding optical,electrical,magnetic,and catalytic properties,it is found that the introduction of rare earth compounds into the lithium-sulfur battery system can effectively solve the shuttle effect and lithium dendrite problems that restrict the development of lithium-sulfur batteries and significantly improve the battery performance.In this paper,the latest research progress of rare earth compounds applied to cathode,separators and electrolytes of lithium-sulfur batteries and their mechanism to solve the key problems of lithium-sulfur batteries are reviewed,and the future development direction of rare earth compounds applied to lithium-sulfur batteries is prospected.