Atomic Layer Deposition of Ni-Co-O Thin-Film Electrodes for Solid-State LIBs and the Influence of Chemical Composition on Overcapacity

Standard

Atomic Layer Deposition of Ni-Co-O Thin-Film Electrodes for Solid-State LIBs and the Influence of Chemical Composition on Overcapacity : Atomic Layer Deposition of Ni-Co-O . / Koshtyal, Yury; Mitrofanov, Ilya; Nazarov, Denis ; Medvedev, Oleg ; Kim, Artem; Ezhov, Ilya; Rumyantsev, Aleksander ; Popovich, Anatoly A.; Maximov, Maxim Yu.

In: Nanomaterials, Vol. 11, No. 4, 907, 02.04.2021.

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

Author

Koshtyal, Yury ; Mitrofanov, Ilya ; Nazarov, Denis ; Medvedev, Oleg ; Kim, Artem ; Ezhov, Ilya ; Rumyantsev, Aleksander ; Popovich, Anatoly A. ; Maximov, Maxim Yu. / Atomic Layer Deposition of Ni-Co-O Thin-Film Electrodes for Solid-State LIBs and the Influence of Chemical Composition on Overcapacity : Atomic Layer Deposition of Ni-Co-O . In: Nanomaterials. 2021 ; Vol. 11, No. 4.

BibTeX

@article{f5b8e53bb0d84d95a29f4b2f5b3878d6,

title = "Atomic Layer Deposition of Ni-Co-O Thin-Film Electrodes for Solid-State LIBs and the Influence of Chemical Composition on Overcapacity: Atomic Layer Deposition of Ni-Co-O ",

abstract = "Nanostructured metal oxides (MOs) demonstrate good electrochemical properties and are regarded as promising anode materials for high-performance lithium-ion batteries (LIBs). The capacity of nickel-cobalt oxides-based materials is among the highest for binary transition metals oxide (TMOs). In the present paper, we report the investigation of Ni-Co-O (NCO) thin films obtained by atomic layer deposition (ALD) using nickel and cobalt metallocenes in a combination with oxygen plasma. The formation of NCO films with different ratios of Ni and Co was provided by ALD cycles leading to the formation of nickel oxide (a) and cobalt oxide (b) in one supercycle (linear combination of a and b cycles). The film thickness was set by the number of supercycles. The synthesized films had a uniform chemical composition over the depth with an admixture of metallic nickel and carbon up to 4 at.%. All samples were characterized by a single NixCo1-xO phase with a cubic face-centered lattice and a uniform density. The surface of the NCO films was uniform, with rare inclusions of nanoparticles 15–30 nm in diameter. The growth rates of all films on steel were higher than those onsilicon substrates, and this difference increased with increasing cobalt concentration in the films. In this paper, we propose a method for processing cyclic voltammetry curves for revealing the influence of individual components (nickel oxide, cobalt oxide and solid electrolyte interface—SEI) on the electrochemical capacity. The initial capacity of NCO films was augmented with an increase of nickel oxide content.",

keywords = "atomic layer deposition, nickel–cobalt oxide, anode materials, solid–state Li-ion batteries, overcapacity, SEI, Nickel–cobalt oxide, Atomic layer deposition, Anode materials, Solid–state Li-ion batteries, Overcapacity",

author = "Yury Koshtyal and Ilya Mitrofanov and Denis Nazarov and Oleg Medvedev and Artem Kim and Ilya Ezhov and Aleksander Rumyantsev and Popovich, {Anatoly A.} and Maximov, {Maxim Yu.}",

note = "Publisher Copyright: {\textcopyright} 2021 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2021",

month = apr,

day = "2",

doi = "10.3390/nano11040907",

language = "English",

volume = "11",

journal = "Nanomaterials",

issn = "2079-4991",

publisher = "MDPI AG",

number = "4",

}

RIS

TY - JOUR

T1 - Atomic Layer Deposition of Ni-Co-O Thin-Film Electrodes for Solid-State LIBs and the Influence of Chemical Composition on Overcapacity

T2 - Atomic Layer Deposition of Ni-Co-O

AU - Koshtyal, Yury

AU - Mitrofanov, Ilya

AU - Nazarov, Denis

AU - Medvedev, Oleg

AU - Kim, Artem

AU - Ezhov, Ilya

AU - Rumyantsev, Aleksander

AU - Popovich, Anatoly A.

AU - Maximov, Maxim Yu.

PY - 2021/4/2

Y1 - 2021/4/2

N2 - Nanostructured metal oxides (MOs) demonstrate good electrochemical properties and are regarded as promising anode materials for high-performance lithium-ion batteries (LIBs). The capacity of nickel-cobalt oxides-based materials is among the highest for binary transition metals oxide (TMOs). In the present paper, we report the investigation of Ni-Co-O (NCO) thin films obtained by atomic layer deposition (ALD) using nickel and cobalt metallocenes in a combination with oxygen plasma. The formation of NCO films with different ratios of Ni and Co was provided by ALD cycles leading to the formation of nickel oxide (a) and cobalt oxide (b) in one supercycle (linear combination of a and b cycles). The film thickness was set by the number of supercycles. The synthesized films had a uniform chemical composition over the depth with an admixture of metallic nickel and carbon up to 4 at.%. All samples were characterized by a single NixCo1-xO phase with a cubic face-centered lattice and a uniform density. The surface of the NCO films was uniform, with rare inclusions of nanoparticles 15–30 nm in diameter. The growth rates of all films on steel were higher than those onsilicon substrates, and this difference increased with increasing cobalt concentration in the films. In this paper, we propose a method for processing cyclic voltammetry curves for revealing the influence of individual components (nickel oxide, cobalt oxide and solid electrolyte interface—SEI) on the electrochemical capacity. The initial capacity of NCO films was augmented with an increase of nickel oxide content.

AB - Nanostructured metal oxides (MOs) demonstrate good electrochemical properties and are regarded as promising anode materials for high-performance lithium-ion batteries (LIBs). The capacity of nickel-cobalt oxides-based materials is among the highest for binary transition metals oxide (TMOs). In the present paper, we report the investigation of Ni-Co-O (NCO) thin films obtained by atomic layer deposition (ALD) using nickel and cobalt metallocenes in a combination with oxygen plasma. The formation of NCO films with different ratios of Ni and Co was provided by ALD cycles leading to the formation of nickel oxide (a) and cobalt oxide (b) in one supercycle (linear combination of a and b cycles). The film thickness was set by the number of supercycles. The synthesized films had a uniform chemical composition over the depth with an admixture of metallic nickel and carbon up to 4 at.%. All samples were characterized by a single NixCo1-xO phase with a cubic face-centered lattice and a uniform density. The surface of the NCO films was uniform, with rare inclusions of nanoparticles 15–30 nm in diameter. The growth rates of all films on steel were higher than those onsilicon substrates, and this difference increased with increasing cobalt concentration in the films. In this paper, we propose a method for processing cyclic voltammetry curves for revealing the influence of individual components (nickel oxide, cobalt oxide and solid electrolyte interface—SEI) on the electrochemical capacity. The initial capacity of NCO films was augmented with an increase of nickel oxide content.

KW - atomic layer deposition

KW - nickel–cobalt oxide

KW - anode materials

KW - solid–state Li-ion batteries

KW - overcapacity

KW - SEI

KW - Nickel–cobalt oxide

KW - Atomic layer deposition

KW - Anode materials

KW - Solid–state Li-ion batteries

KW - Overcapacity

UR - https://www.mdpi.com/2079-4991/11/4/907

UR - http://www.scopus.com/inward/record.url?scp=85103500238&partnerID=8YFLogxK

U2 - 10.3390/nano11040907

DO - 10.3390/nano11040907

M3 - Article

VL - 11

JO - Nanomaterials

JF - Nanomaterials

SN - 2079-4991

IS - 4

M1 - 907

ER -

ID: 86113671