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Energies
Volume 13
Issue 9
10.3390/en13092345
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Article

Atomic Layer Deposition of Lithium–Nickel–Silicon Oxide Cathode Material for Thin-Film Lithium-Ion Batteries

by
Maxim Maximov
1,*,
Denis Nazarov
2,
Aleksander Rumyantsev
3,
Yury Koshtyal
1,
Ilya Ezhov
1,
Ilya Mitrofanov
1,
Artem Kim
1,
Oleg Medvedev
1 and
Anatoly Popovich
1
1
Peter the Great Saint-Petersburg Polytechnic University, 195221 Saint Petersburg, Russia
2
Saint Petersburg State University, 199034 Saint Petersburg, Russia
3
Ioffe Institute, 194021 Saint Petersburg, Russia
*
Author to whom correspondence should be addressed.
Energies 2020, 13(9), 2345; https://doi.org/10.3390/en13092345
Received: 12 March 2020 / Revised: 3 May 2020 / Accepted: 4 May 2020 / Published: 8 May 2020
(This article belongs to the Special Issue Advanced Nanomaterials for Li- and Na-Ion Batteries)
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Abstract

Lithium nickelate (LiNiO2) and materials based on it are attractive positive electrode materials for lithium-ion batteries, owing to their large capacity. In this paper, the results of atomic layer deposition (ALD) of lithium–nickel–silicon oxide thin films using lithium hexamethyldisilazide (LiHMDS) and bis(cyclopentadienyl) nickel (II) (NiCp2) as precursors and remote oxygen plasma as a counter-reagent are reported. Two approaches were studied: ALD using supercycles and ALD of the multilayered structure of lithium oxide, lithium nickel oxide, and nickel oxides followed by annealing. The prepared films were studied by scanning electron microscopy, spectral ellipsometry, X-ray diffraction, X-ray reflectivity, X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, energy-dispersive X-ray spectroscopy, transmission electron microscopy, and selected-area electron diffraction. The pulse ratio of LiHMDS/Ni(Cp)2 precursors in one supercycle ranged from 1/1 to 1/10. Silicon was observed in the deposited films, and after annealing, crystalline Li2SiO3 and Li2Si2O5 were formed at 800 °C. Annealing of the multilayered sample caused the partial formation of LiNiO2. The obtained cathode materials possessed electrochemical activity comparable with the results for other thin-film cathodes. View Full-Text
Keywords: atomic layer deposition; lithium–nickel–silicon oxide; Li-ion batteries; thin-film battery; cathode materials atomic layer deposition; lithium–nickel–silicon oxide; Li-ion batteries; thin-film battery; cathode materials
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

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MDPI and ACS Style

Maximov, M.; Nazarov, D.; Rumyantsev, A.; Koshtyal, Y.; Ezhov, I.; Mitrofanov, I.; Kim, A.; Medvedev, O.; Popovich, A. Atomic Layer Deposition of Lithium–Nickel–Silicon Oxide Cathode Material for Thin-Film Lithium-Ion Batteries. Energies 2020, 13, 2345. https://doi.org/10.3390/en13092345

AMA Style

Maximov M, Nazarov D, Rumyantsev A, Koshtyal Y, Ezhov I, Mitrofanov I, Kim A, Medvedev O, Popovich A. Atomic Layer Deposition of Lithium–Nickel–Silicon Oxide Cathode Material for Thin-Film Lithium-Ion Batteries. Energies. 2020; 13(9):2345. https://doi.org/10.3390/en13092345

Chicago/Turabian Style

Maximov, Maxim, Denis Nazarov, Aleksander Rumyantsev, Yury Koshtyal, Ilya Ezhov, Ilya Mitrofanov, Artem Kim, Oleg Medvedev, and Anatoly Popovich. 2020. "Atomic Layer Deposition of Lithium–Nickel–Silicon Oxide Cathode Material for Thin-Film Lithium-Ion Batteries" Energies 13, no. 9: 2345. https://doi.org/10.3390/en13092345

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