Hyper-rapid preparation of spinel lithium manganate cathode material by microwave liquid-state-flameless-combustion method
TIAN Liang
WEN Bi-xia
SU Chang-wei
GUO Jun-ming
Abstract：The spinel lithium manganate materials with good crystallinity and purity have been hy-per-rapidly synthesized by microwave liquid-state flameless combustion.Their structure,mor-phology and electrochemical properties are characterized by X-ray diffraction(XRD),field emis-sion scanning electron microscopy(FE-SEM),constant current charge-discharge cycle test and cyclic voltammetry(CV),respectively.All X-ray diffraction peaks of the materials can be well assigned to those of the spinel-type LiMn2O4and no other impurity peaks appear,suggesting a pure spinel-type LiMn2O4phase for the materials.The SEM micrographs reveal that the material is composed of mainly polyhedron crystals.A synthesize sample reaches 119.3mAh/g of discharge specific capacity at 1C at room temperature,and it reserves 89.2mAh/g after 100 cy-cles,with a capacity retention rate of 74.8%.
Keywords：MicrowaveFlameless combustion methodLithium manganateHyper-rapid
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 11-14 )