Nanocrystalline lithium–manganese oxide spinels for Li-ion batteries — Sol-gel synthesis and characterization of their structure and selected physical properties

Michalska, Monika; Lipińska, L.; Mirkowska, Monika; Aksienionek, M.; Diduszko, R.; Wasiucionek, M.

doi:10.1016/j.ssi.2010.12.003

Cited by 46 publications

(26 citation statements)

References 19 publications

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“…The spinel structured lithium manganese oxide nanomaterials: LiMn 2 − x M x O 4 , where M = Ni, Fe and 0.1 x 0.5 (corresponding to nominal Mn:Fe or Mn:Ni composition ratios of 1.9:0.1, 1.8:0.2, 1.7:0.3, 1.6:0.4 and 1.5:0.5, respectively) were synthesized by a simple, low cost, modified sol-gel method [5,6,[42][43][44][45] , 99.5 % CHEMPUR) acids were added as complexing agents. Finally, the solution was evaporated until a gel was formed, which was further dried for a few hours at 150°C.…”

Section: Methodsmentioning

confidence: 99%

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Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Talik

Lipińska

Guzik

et al. 2017

Materials Science-Poland

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The Pechini sol-gel method was applied to obtain LiMn 2 − x T x O 4 (T = Ni, Fe; x = 0.1 to 0.5) nanopowders. Crystal and electronic structures, chemical composition and magnetic properties of the materials were characterized by X-ray diffraction, XPS, SEM/EDX microscopy, prompt gamma-ray activation analysis (PGAA), Mössbauer spectroscopy and magnetic susceptibility, respectively. XRD measurements showed that the LiMn 2 − x Ni x O 4 were single phase for x = 0.1 and 0.2. Three samples with higher Ni content contained some addition of a second phase. Analysis of the oxidation state of the dopants by XPS revealed ionic Ni 2+ and Fe 3+ . Mössbauer spectroscopy also confirmed 3+ oxidation state of iron and its location in octahedral sites, which excluded the inverse spinel configuration. XPS examinations showed that Mn 3+ ions dominated in the iron substituted series whereas the Mn 4+ was dominant in the nickel series.

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Section: Methodsmentioning

confidence: 99%

“…Being a solution-based route, it offers a possibility of molecular level mixing of the starting materials. As a consequence, one can attain a high degree of homogeneity with small particle size and high surface area [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Talik

Lipińska

Guzik

et al. 2017

Materials Science-Poland

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“…LiMn 2 O 4 spinel is an attractive candidate cathode material for Li-ion rechargeable batteries with a three-dimensional framework because it has many advantages, such as low toxicity, cost efficiency, environmental friendliness compared to other lithiated transition metal oxides, such as lithium cobalt oxide or lithium nickel oxide [3][4][5]. The structure of spinel LiMn 2 O 4 (space group Fd3m) is shown in Figure 1.…”

Section: Open Accessmentioning

confidence: 99%

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

et al. 2013

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Spinel LiMn 2 O 4 is an appealing candidate cathode material for Li-ion rechargeable batteries, but it suffers from severe capacity fading, especially at higher temperature (55 °C) during discharging/charging. In recent years, many attempts have been made to synthesize modified LiMn 2 O 4 . This paper reviews the recent research on the preparation and doping modes of doped LiMn 2 O 4 for modifying the LiMn 2 O 4. We firstly compared preparation methods for doped spinel LiMn 2 O 4 , such as solid state reactions and solution synthetic methods. Then we mainly discuss doping modes reported in recent years, such as bulk doping, surface doping and combined doping. A comparison of different doping modes is also provided. The research shows that the multiple-ion doping and combined doping modes of LiMn 2 O 4 used in Li-ion battery are excellent for improving different aspects of the electrochemical performance which holds great promise in the future. From this paper, we also can see that spinel LiMnO 4 as an attractive candidate cathode material for Li-ion batteries.

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“…In order to get a better understanding of the different possible by-products, Berbenni and Marini [12] Michalska and coworkers [15] have studied the important stages of the syntheses of nanocrystalline lithium-manganese oxide spinels using DSC-TGA measurements. They found that DSC/TGA/XRD data are co-related to each other, and all major thermal events, for all precursors occur between 500˚C -700˚C.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Synthesis Conditions of LiMn2–xFexO4 Cathode Materials Based on Thermal Characterizations

Chiovoloni¹,

Moran²,

LeMaire³

et al. 2017

AJAC

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We have synthesized LiMn 2−x Fe x O 4 (x = 0, 0.25, and 0.50) cathode materials for applications in Li ion rechargeable batteries via sol-gel method. We studied thermal characteristics of as synthesized materials using differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). In order to optimize the synthesis conditions, we studied X-ray diffraction (XRD) of synthesized cathode materials at various temperatures, based on the transitions obtained from DSC/TGA. The XRD results can be co-related to the thermal behavior of the synthesized cathode materials and the synthesis conditions optimized.

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Nanocrystalline lithium–manganese oxide spinels for Li-ion batteries — Sol-gel synthesis and characterization of their structure and selected physical properties

Cited by 46 publications

References 19 publications

Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Optimization of Synthesis Conditions of LiMn<sub>2–x</sub>Fe<sub>x</sub>O<sub>4</sub> Cathode Materials Based on Thermal Characterizations

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Nanocrystalline lithium–manganese oxide spinels for Li-ion batteries — Sol-gel synthesis and characterization of their structure and selected physical properties

Cited by 46 publications

References 19 publications

Formation of Fe and Ni substituted LiMn2–XMXO4nanopowders and their crystal and electronic structure and magnetic properties

Formation of Fe and Ni substituted LiMn2–XMXO4nanopowders and their crystal and electronic structure and magnetic properties

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Optimization of Synthesis Conditions of LiMn&lt;sub&gt;2–x&lt;/sub&gt;Fe&lt;sub&gt;x&lt;/sub&gt;O&lt;sub&gt;4&lt;/sub&gt; Cathode Materials Based on Thermal Characterizations

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Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Formation of Fe and Ni substituted LiMn_2–XM_XO₄nanopowders and their crystal and electronic structure and magnetic properties

Optimization of Synthesis Conditions of LiMn<sub>2–x</sub>Fe<sub>x</sub>O<sub>4</sub> Cathode Materials Based on Thermal Characterizations