锂金属负极中人工固体电解质间相保护膜研究进展

Progress of Artificial SEI Protective Film in Lithium Metal Anode

介绍了锂电池的发展,锂金属电池的优势及面临的挑战,即锂金属电池存在循环稳定性差和枝晶生长的问题。对此,可以在锂负极表面构建一种人工固体电解质间相(SEI)保护膜。叙述了SEI保护膜的形成、研究方向和负极材料所具备的条件,讨论了锂金属负极电池发展方向,认为锂金属负极电池的需要在基础研究、材料开发和电池工程等方面付出更多的努力。

The development of lithium battery, the advantages and challenges of lithium metal battery were introduced, that is, the lithium metal battery has poor cycle stability and dendritic growth. In this regard, an artificial solid electrolyte interphase(SEI)protective film can be constructed on the surface of lithium anode. The formation and research direction of SEI protective film and the conditions of anode materials are described. The development direction of lithium metal anode battery is discussed. It is considered that more efforts should be made in basic research, material development and battery engineering.