Effect of stoichiometry, ordering and defects on the electrochemical properties of high-voltage spinel LNMO for Li-ion batteries
Four different samples of spinel LiNi0.5Mn1.5O4 used as high-voltage positive electrode materials for next generation of Li-ion batteries have been selected because they show distinct electrochemical performance. Although their XRD patterns are very similar, such differences in their electrochemical properties are probably related to structural features (off-stoichiometries, metal ordering, antiphase boundaries, antisite defects, etc) which will be better characterized from their NPD patterns. We aim here at establishing the correlations existing between composition, (micro)structure and electrochemical properties of these spinel materials, which are attracting strong interest as being one of the best candidate to replace cobalt-based cathodes in the next generation of Li-ion batteries developped by the European Community.
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Marine REYNAUD; CABANERO MARTINEZ Maria Angeles; CASAS CABANAS Montserrat; FEHSE Marcus; I. Monterrubio; ORIVE Joseba; SAMPATHKUMAR Ramakumar and SUARD Emmanuelle. (2021). Effect of stoichiometry, ordering and defects on the electrochemical properties of high-voltage spinel LNMO for Li-ion batteries. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-23-751
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