Inorganic Chemicals Industry >
Advances in synthesis methods and structural modification of LiMnFePO4 materials
Received date: 2023-09-21
Online published: 2024-08-01
Lithium⁃ion batteries have attracted much attention because of their high specific energy，long cycle life and no memory effect，and have been widely used in daily life.Among the existing cathode materials for lithium⁃ion batteries，lithium iron manganese phosphate cathode material is a promising cathode material for lithium⁃ion batteries with the advantages of high energy density，high specific capacity of discharge，high voltage plateau，etc.However，due to the problems of its low electrical conductivity and slow ion mobility rate，it has been restricting its development.In this paper，by analysing the effects of different Fe-Mn ratios，particle sizes and morphologies on the electrochemical performance of lithium iron manganese phosphate，it was pointed out that the small particle size porous spherical particles with an Fe-Mn ratio of 0.5∶0.5 had a good effect on improving the electrochemical performance.And it was also introduced that the optimization by using the methods of plasma doping of Mg，Ti，and Ni or the modification method of surface capping，the performance of the material would be more satisfactory.Finally，some suggestions on the development trend of lithium ferromanganese phosphate were put forward，pointing out that the improvement of the synthesis process and the development of more in⁃depth theoretical research were still the focus of future research.
SU Baocai , ZHANG Qin , XIE Yuanjian , CAI Pingxiong , PAN Yuanfeng . Advances in synthesis methods and structural modification of LiMnFePO4 materials[J]. Inorganic Chemicals Industry, 2024 , 56(7) : 28 -36 . DOI: 10.19964/j.issn.1006-4990.2023-0461
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