富锂三元层状正极材料的研究进展

doi:10.11944/j.issn.1000-0518.2018.11.180006

摘要/Abstract

摘要：

富锂三元层状正极材料(xLi₂MnO₃·(1-x)LiMO₂(0<x<1,M=Mn,Ni,Co))因其远高于其它正极材料的放电比容量而被视为下一代锂离子电池正极材料的最佳选择之一,是未来锂离子电池研究和发展的重点。但由于其循环性能差、库伦效率低等缺陷,富锂正极材料迟迟不能实现商业化生产。本文将介绍近几年国内外富锂三元层状正极材料的最新研究进展,主要包括富锂三元层状正极材料的组成、制备技术、结构和性能研究以及包覆与掺杂等改性方面的研究进展,同时对富锂层状正极材料未来的发展趋势和前景作了展望。

关键词: 锂离子电池, 循环稳定性, 富锂三元层状正极材料

Abstract:

Lithium-rich ternary layered cathode material(xLi₂MnO₃·(1-x)LiMO₂(0<x<1, M=Mn,Ni,Co)) has much higher discharge capacity than other cathode materials. Therefore, it is regarded as one of the best choice for the next generation of lithium-ion battery cathode materials. However, its commercial production and application have been limited by its poor cycle performance and low coulomb efficiency. Herein the latest research progress of lithium-rich ternary layered cathode materials is reviewed, mainly including the progresses in the aspects of material composition, preparation technology, structure tuning, doping and coating modification of the materials. Furthermore, developing trends of the materials is also prospected in this paper.

Key words: lithium ion batteries, cycle performance, lithium-rich ternary layered cathode materials

张和,张梦诗,廖世军. 富锂三元层状正极材料的研究进展[J]. 应用化学, 2018, 35(11): 1277-1288.

ZHANG He,ZHANG Mengshi,LIAO Shijun. Recent Progress in the Lithium-Rich Ternary Layered Cathode Materials[J]. Chinese Journal of Applied Chemistry, 2018, 35(11): 1277-1288.

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