Abstract
LiNi0.475Mn0.475Al0.05O2 cathode material was prepared by solid-state reaction using Ni–Mn–Al–O solid solution as precursor. The solid solution is of spinel structure, in which nickel, manganese, and aluminum are sufficiently mixed at atomic level. Rietveld refinement of X-ray diffraction data revealed that Al doping in LiNi0.5Mn0.5O2 was significantly effective to decrease the degree of Li/Ni cation mixing. XPS analysis showed that the valence states of nickel and manganese were mainly +2 and +4, respectively. LiNi0.475Mn0.475Al0.05O2 delivered a stable capacity of about 206 mAh g−1 with high reversibility. High-rate capability test was also performed.
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This work was supported by a grand from Natural Science Foundation of Anhui Province (Grant No. 090414178).
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Dou, S., Wang, Wl., Li, H. et al. Synthesis and electrochemical performance of LiNi0.475Mn0.475Al0.05O2 as cathode material for lithium-ion battery from Ni–Mn–Al–O precursor. J Solid State Electrochem 15, 747–751 (2011). https://doi.org/10.1007/s10008-010-1151-4
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DOI: https://doi.org/10.1007/s10008-010-1151-4