DOI > 10.5291/ILL-DATA.5-23-751

This proposal is publicly available since 03/01/2026

Title

Effect of stoichiometry, ordering and defects on the electrochemical properties of high-voltage spinel LNMO for Li-ion batteries

Abstract

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.

Experimental Report

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Data Citation

The recommended format for citing this dataset in a research publication is in the following format:

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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Metadata

Experiment Parameters

  • Experiment energy

    1.594 A
  • Experiment res energy

    High resolution

Sample Parameters

  • Formula

    • 4 delithiated samples of LixNi0.5Mn1.5O4
    • 4 pristines samples of LiNi0.5Mn1.5O4
    • 1 air-aged sample of LiNi0.5Mn1.5O4
    • 8 electrochemically aged samples of LiNi0.5Mn1.5O4
    • 1 re-annealed sample of LiNi0.5Mn1.5O4
    • 5 samples of LixTiNb2O7 (0<x<4)