2006
DOI: 10.1016/j.electacta.2006.02.047
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Local atomic characterization of LiCo1/3Ni1/3Mn1/3O2 cathode material

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Cited by 17 publications
(12 citation statements)
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“…Therefore, the distinct two-step voltage profile can be explained with one from the Fe-rich phase and the other from the Mn-rich phase. The perfect homogeneous distribution of Fe and Mn ionic sites through the overall lattice structure should have produced an average plateau across the voltage profile [42][43][44]. In spite of primarily consisting of an electrochemically poor LiMnPO 4 phase, the solid solution LiFe 0.4 Mn 0.6 PO 4 has improved electrochemical properties, even compared to LiFePO 4 .…”
Section: Resultsmentioning
confidence: 96%
“…Therefore, the distinct two-step voltage profile can be explained with one from the Fe-rich phase and the other from the Mn-rich phase. The perfect homogeneous distribution of Fe and Mn ionic sites through the overall lattice structure should have produced an average plateau across the voltage profile [42][43][44]. In spite of primarily consisting of an electrochemically poor LiMnPO 4 phase, the solid solution LiFe 0.4 Mn 0.6 PO 4 has improved electrochemical properties, even compared to LiFePO 4 .…”
Section: Resultsmentioning
confidence: 96%
“…The pre-edge peak A corresponds to the transition of the 1s electron to 3d orbital. This transition is dipole forbidden in an ideal octahedral symmetry, and it should not appear in spectra of compounds with high symmetry [25]. Nevertheless, the small intensity pre-edge peaks are observed in the Co spectra of the bare LiCoO 2 and ZrO 2 -coated LiCoO 2 , which are mainly as a result of the electric quadrupole transition.…”
Section: Xrd Xanes and Sem Analysesmentioning
confidence: 82%
“…It has been shown that Nickel (Ni þ2 ) is the electrochemical active species, manganese (Mn þ4 ) provides structural stability and cobalt (Co þ3 ) supports ordering of lithium and nickel ions onto their respective lattice sites [8]. Due to the similar ionic radii of Ni þ2 (0.67 Å) and Li þ (0.76 Å) there is always a chance that these two ions are exchanged on their crystallographic sites [9,10] which introduces local disorder that may impair the electrochemical performance [11]. Another problem is that during early charge of the battery Ni þ2 ions in the lithium layers are oxidized to Ni þ3 ions before lithium is removed.…”
Section: Introductionmentioning
confidence: 99%