Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries

Hashem, Ahmed M.; Abdel-Ghany, Ashraf E.; Scheuermann, Marco; Indris, Sylvio; Ehrenberg, Helmut; Mauger, Alain; Julien, Christian M.

doi:10.3390/ma12182899

Open AccessArticle

Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries

by

Ahmed M. Hashem

^1,2,

Ashraf E. Abdel-Ghany

¹

,

Marco Scheuermann

²,

Sylvio Indris

²,

Helmut Ehrenberg

²

,

Alain Mauger

³ and

Christian M. Julien

^3,*

¹

National Research Centre, Inorganic Chemistry Department, 33 El Bohouth St., (former El Tahrir St.), Dokki-Giza 12622, Egypt

²

Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM), P.O. Box 3640, 76021 Karlsruhe, Germany

³

Institut de Minéralogie, Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, Campus Pierre et Marie Curie, UMR 7590, 4 place Jussieu, 75252 Paris, France

^*

Author to whom correspondence should be addressed.

Materials 2019, 12(18), 2899; https://doi.org/10.3390/ma12182899

Submission received: 10 July 2019 / Revised: 4 September 2019 / Accepted: 5 September 2019 / Published: 7 September 2019

(This article belongs to the Special Issue Advanced Materials for Electrochemical Energy Conversion and Storage Devices)

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Abstract

A series of Li(Ni_1/3Mn_1/3Co_1/3)_1−xM_xO₂ (M = Al, Mg, Zn, and Fe, x = 0.06) was prepared via sol-gel method assisted by ethylene diamine tetra acetic acid as a chelating agent. A typical hexagonal α-NaFeO₂ structure (R-3m space group) was observed for parent and doped samples as revealed by X-ray diffraction patterns. For all samples, hexagonally shaped nanoparticles were observed by scanning electron microscopy and transmission electron microscopy. The local structure was characterized by infrared, Raman, and Mössbauer spectroscopy and ⁷Li nuclear magnetic resonance (Li-NMR). Cyclic voltammetry and galvanostatic charge-discharge tests showed that Mg and Al doping improved the electrochemical performance of LiNi_1/3Mn_1/3Co_1/3O₂ in terms of specific capacities and cyclability. In addition, while Al doping increases the initial capacity, Mg doping is the best choice as it improves cyclability for reasons discussed in this work.

Keywords: sol-gel synthesis; EDTA chelator; cathode materials; layered oxide; doping; lithium-ion batteries

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MDPI and ACS Style

Hashem, A.M.; Abdel-Ghany, A.E.; Scheuermann, M.; Indris, S.; Ehrenberg, H.; Mauger, A.; Julien, C.M. Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries. Materials 2019, 12, 2899. https://doi.org/10.3390/ma12182899

AMA Style

Hashem AM, Abdel-Ghany AE, Scheuermann M, Indris S, Ehrenberg H, Mauger A, Julien CM. Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries. Materials. 2019; 12(18):2899. https://doi.org/10.3390/ma12182899

Chicago/Turabian Style

Hashem, Ahmed M., Ashraf E. Abdel-Ghany, Marco Scheuermann, Sylvio Indris, Helmut Ehrenberg, Alain Mauger, and Christian M. Julien. 2019. "Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries" Materials 12, no. 18: 2899. https://doi.org/10.3390/ma12182899

APA Style

Hashem, A. M., Abdel-Ghany, A. E., Scheuermann, M., Indris, S., Ehrenberg, H., Mauger, A., & Julien, C. M. (2019). Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries. Materials, 12(18), 2899. https://doi.org/10.3390/ma12182899

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Doped Nanoscale NMC333 as Cathode Materials for Li-Ion Batteries

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