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Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology

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Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology. / Zhao, H.; Nie, Y.; Que, D. et al.
In: Materials, Vol. 12, No. 17, 2807, 31.08.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Zhao, H, Nie, Y, Que, D, Hu, Y & Li, Y 2019, 'Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology', Materials, vol. 12, no. 17, 2807. https://doi.org/10.3390/ma12172807

APA

Zhao, H., Nie, Y., Que, D., Hu, Y., & Li, Y. (2019). Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology. Materials, 12(17), Article 2807. https://doi.org/10.3390/ma12172807

Vancouver

Zhao H, Nie Y, Que D, Hu Y, Li Y. Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology. Materials. 2019 Aug 31;12(17):2807. doi: 10.3390/ma12172807

Author

Zhao, H. ; Nie, Y. ; Que, D. et al. / Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology. In: Materials. 2019 ; Vol. 12, No. 17.

Bibtex

@article{ddc2ac288e044456b77a4cef254f1ee1,
title = "Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology",
abstract = "In this work, the spinel LiMn2O4 cathode material was prepared by high-temperature solid-phase method and further optimized by co-modification strategy based on the Mg-doping and octahedral morphology. The octahedral LiMn1.95Mg0.05O4 sample belongs to the spinel cubic structure with the space group of Fd3m, and no other impurities are presented in the XRD patterns. The octahedral LiMn1.95Mg0.05O4 particles show narrow size distribution with regular morphology. When used as cathode material, the obtained LiMn1.95Mg0.05O4 octahedra shows excellent electrochemical properties. This material can exhibit high capacity retention of 96.8% with 100th discharge capacity of 111.6 mAh g-1 at 1.0 C. Moreover, the rate performance and high-temperature cycling stability of LiMn2O4 are effectively improved by the co-modification strategy based on Mg-doping and octahedral morphology. These results are mostly given to the fact that the addition of magnesium ions can suppress the Jahn-Teller effect and the octahedral morphology contributes to the Mn dissolution, which can improve the structural stability of LiMn2O4. {\textcopyright} 2019 by the authors.",
keywords = "Electrochemical properties, LiMn2O4, Mg-doping, Octahedral morphology, Synergistic effect, Cathodes, Electric discharges, Impurities, Lithium compounds, Magnesium compounds, Metal ions, Morphology, Stability, High temperature cycling, High temperature solid phase methods, Narrow size distributions, Structural stabilities, Manganese compounds",
author = "H. Zhao and Y. Nie and D. Que and Y. Hu and Y. Li",
year = "2019",
month = aug,
day = "31",
doi = "10.3390/ma12172807",
language = "English",
volume = "12",
journal = "Materials",
issn = "1996-1944",
publisher = "MDPI AG",
number = "17",

}

RIS

TY - JOUR

T1 - Improved electrochemical properties of LiMn2O4-based cathode material co-modified by mg-doping and octahedral morphology

AU - Zhao, H.

AU - Nie, Y.

AU - Que, D.

AU - Hu, Y.

AU - Li, Y.

PY - 2019/8/31

Y1 - 2019/8/31

N2 - In this work, the spinel LiMn2O4 cathode material was prepared by high-temperature solid-phase method and further optimized by co-modification strategy based on the Mg-doping and octahedral morphology. The octahedral LiMn1.95Mg0.05O4 sample belongs to the spinel cubic structure with the space group of Fd3m, and no other impurities are presented in the XRD patterns. The octahedral LiMn1.95Mg0.05O4 particles show narrow size distribution with regular morphology. When used as cathode material, the obtained LiMn1.95Mg0.05O4 octahedra shows excellent electrochemical properties. This material can exhibit high capacity retention of 96.8% with 100th discharge capacity of 111.6 mAh g-1 at 1.0 C. Moreover, the rate performance and high-temperature cycling stability of LiMn2O4 are effectively improved by the co-modification strategy based on Mg-doping and octahedral morphology. These results are mostly given to the fact that the addition of magnesium ions can suppress the Jahn-Teller effect and the octahedral morphology contributes to the Mn dissolution, which can improve the structural stability of LiMn2O4. © 2019 by the authors.

AB - In this work, the spinel LiMn2O4 cathode material was prepared by high-temperature solid-phase method and further optimized by co-modification strategy based on the Mg-doping and octahedral morphology. The octahedral LiMn1.95Mg0.05O4 sample belongs to the spinel cubic structure with the space group of Fd3m, and no other impurities are presented in the XRD patterns. The octahedral LiMn1.95Mg0.05O4 particles show narrow size distribution with regular morphology. When used as cathode material, the obtained LiMn1.95Mg0.05O4 octahedra shows excellent electrochemical properties. This material can exhibit high capacity retention of 96.8% with 100th discharge capacity of 111.6 mAh g-1 at 1.0 C. Moreover, the rate performance and high-temperature cycling stability of LiMn2O4 are effectively improved by the co-modification strategy based on Mg-doping and octahedral morphology. These results are mostly given to the fact that the addition of magnesium ions can suppress the Jahn-Teller effect and the octahedral morphology contributes to the Mn dissolution, which can improve the structural stability of LiMn2O4. © 2019 by the authors.

KW - Electrochemical properties

KW - LiMn2O4

KW - Mg-doping

KW - Octahedral morphology

KW - Synergistic effect

KW - Cathodes

KW - Electric discharges

KW - Impurities

KW - Lithium compounds

KW - Magnesium compounds

KW - Metal ions

KW - Morphology

KW - Stability

KW - High temperature cycling

KW - High temperature solid phase methods

KW - Narrow size distributions

KW - Structural stabilities

KW - Manganese compounds

U2 - 10.3390/ma12172807

DO - 10.3390/ma12172807

M3 - Journal article

VL - 12

JO - Materials

JF - Materials

SN - 1996-1944

IS - 17

M1 - 2807

ER -