Identification of LiNi0.5Mn1.5O4 spinel in layered manganese enriched electrode materials

Ilias Belharouak; Gary M. Koenig; Jiwei Ma; D. P. Wang; Khalil Amine

doi:10.1016/j.elecom.2010.12.021

Identification of LiNi_0.5Mn_1.5O₄ spinel in layered manganese enriched electrode materials

Ilias Belharouak
, Gary M. Koenig
, Jiwei Ma
, D. P. Wang
, Khalil Amine

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

We report the synthesis and characterization of the composite materials Li_{1 + x}(Ni_0.25Mn_0.75)O_{2.25 + x/2} and Li_{1 + x}(Ni_0.25Co_0.125Mn_0.625)O _{2.19 + x/2} (x = 0.25, 0.375, 0.5, and 0.625) via a solid-state reaction. XRD patterns and electrochemical cycling of the materials in lithium cells revealed features consistent with the presence of the high voltage spinel LiNi_0.5Mn_1.5O₄ phase within the materials, which diminished with increasing relative lithium compositions. The cobalt-containing materials had less evidence of a spinel phase than the cobalt-free materials of equivalent relative lithium to transition metal compositions. The results presented herein provide evidence that the additional XRD features were correlated with the presence of the LiNi_0.5Mn _1.5O₄ phase within these materials.

Original language	English
Pages (from-to)	232-236
Number of pages	5
Journal	Electrochemistry Communications
Volume	13
Issue number	3
DOIs	https://doi.org/10.1016/j.elecom.2010.12.021
State	Published - Mar 2011
Externally published	Yes

Funding

This research was funded by the U.S. Department of Energy, FreedomCAR, and Vehicle Technologies Office . Argonne National Laboratory is operated for the U.S. Department of Energy by UChicago Argonne, LLC, under contract DE-ACOZ-06CH11357.

Keywords

Composite materials
LiMnO
Lithium-ion electrodes
Spinel

Access to Document

10.1016/j.elecom.2010.12.021

Cite this

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title = "Identification of LiNi0.5Mn1.5O4 spinel in layered manganese enriched electrode materials",

abstract = "We report the synthesis and characterization of the composite materials Li1 + x(Ni0.25Mn0.75)O2.25 + x/2 and Li1 + x(Ni0.25Co0.125Mn0.625)O 2.19 + x/2 (x = 0.25, 0.375, 0.5, and 0.625) via a solid-state reaction. XRD patterns and electrochemical cycling of the materials in lithium cells revealed features consistent with the presence of the high voltage spinel LiNi0.5Mn1.5O4 phase within the materials, which diminished with increasing relative lithium compositions. The cobalt-containing materials had less evidence of a spinel phase than the cobalt-free materials of equivalent relative lithium to transition metal compositions. The results presented herein provide evidence that the additional XRD features were correlated with the presence of the LiNi0.5Mn 1.5O4 phase within these materials.",

keywords = "Composite materials, LiMnO, Lithium-ion electrodes, Spinel",

author = "Ilias Belharouak and Koenig, \{Gary M.\} and Jiwei Ma and Wang, \{D. P.\} and Khalil Amine",

year = "2011",

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language = "English",

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journal = "Electrochemistry Communications",

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TY - JOUR

T1 - Identification of LiNi0.5Mn1.5O4 spinel in layered manganese enriched electrode materials

AU - Belharouak, Ilias

AU - Koenig, Gary M.

AU - Ma, Jiwei

AU - Wang, D. P.

AU - Amine, Khalil

PY - 2011/3

Y1 - 2011/3

N2 - We report the synthesis and characterization of the composite materials Li1 + x(Ni0.25Mn0.75)O2.25 + x/2 and Li1 + x(Ni0.25Co0.125Mn0.625)O 2.19 + x/2 (x = 0.25, 0.375, 0.5, and 0.625) via a solid-state reaction. XRD patterns and electrochemical cycling of the materials in lithium cells revealed features consistent with the presence of the high voltage spinel LiNi0.5Mn1.5O4 phase within the materials, which diminished with increasing relative lithium compositions. The cobalt-containing materials had less evidence of a spinel phase than the cobalt-free materials of equivalent relative lithium to transition metal compositions. The results presented herein provide evidence that the additional XRD features were correlated with the presence of the LiNi0.5Mn 1.5O4 phase within these materials.

AB - We report the synthesis and characterization of the composite materials Li1 + x(Ni0.25Mn0.75)O2.25 + x/2 and Li1 + x(Ni0.25Co0.125Mn0.625)O 2.19 + x/2 (x = 0.25, 0.375, 0.5, and 0.625) via a solid-state reaction. XRD patterns and electrochemical cycling of the materials in lithium cells revealed features consistent with the presence of the high voltage spinel LiNi0.5Mn1.5O4 phase within the materials, which diminished with increasing relative lithium compositions. The cobalt-containing materials had less evidence of a spinel phase than the cobalt-free materials of equivalent relative lithium to transition metal compositions. The results presented herein provide evidence that the additional XRD features were correlated with the presence of the LiNi0.5Mn 1.5O4 phase within these materials.

KW - Composite materials

KW - LiMnO

KW - Lithium-ion electrodes

KW - Spinel

UR - https://www.scopus.com/pages/publications/79951853007

U2 - 10.1016/j.elecom.2010.12.021

DO - 10.1016/j.elecom.2010.12.021

M3 - Article

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JO - Electrochemistry Communications

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