Novel P2-type layered medium-entropy ceramics oxide as cathode material for sodium-ion batteries

Shengxue Yan; Shaohua Luo; Liu Yang; Jian Feng; Pengwei Li; Qing Wang; Yahui Zhang; Xin Liu

doi:10.1007/s40145-021-0524-8

Novel P2-type layered medium-entropy ceramics oxide as cathode material for sodium-ion batteries

Shengxue Yan, Shaohua Luo^*, Liu Yang, Jian Feng, Pengwei Li, Qing Wang, Yahui Zhang, Xin Liu

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

38 Citations (Scopus)

Abstract

High-entropy oxides (HEOs) and medium-entropy oxides (MEOs) are new types of single-phase solid solution materials. MEOs have rarely been reported as positive electrode material for sodium-ion batteries (SIBs). In this study, we first proposed the concept of the application of MEOs in SIBs. P2-type 3-cation oxide Na_2/3Ni_1/3Mn_1/3Fe_1/3O₂ (NaNMF) and 4-cation oxide Na_2/3Ni_1/3Mn_1/3Fe_1/3−xAl_xO₂ (NaNMFA) were prepared using the solid-state method, rather than the doping technology. In addition, the importance of the concept of entropy stabilization in material performance and battery cycling was demonstrated by testing 3-cation (NaNMF) and 4-cation (NaNMFA) oxides in the same system. Thus, NaNMFA can provide a reversible capacity of about 125.6 mAh·g⁻¹ in the voltage range of 2–4.2 V, and has enhanced cycle stability. The capacity and decay law of the MEO batteries indicate that the configurational entropy (1.28 R (NaNMFA) > 1.10 R (NaNMF)) of the cationic system, is the main factor affecting the structural and cycle stability of the electrode material. This work emphasizes that the rational design of MEOs with novel structures and different electrochemically active elements may be the strategy for exploring high-performance SIB cathode materials in next-generation energy storage devices. [Figure not available: see fulltext.].

Original language	English
Journal	Journal of Advanced Ceramics
Volume	11
Issue number	1
Pages (from-to)	158-171
Number of pages	14
ISSN	2226-4108
DOIs	https://doi.org/10.1007/s40145-021-0524-8
Publication status	Published - Jan 2022
Externally published	Yes

Bibliographical note

Funding Information:
This work was financially supported by the National Natural Science Foundation of China (Nos. 51674068, 51874079, 51804035, and 11775226), the Natural Science Foundation of Hebei Province (No. E2018501091), the Hebei Province Key Research and Development Plan Project (No. 19211302D), the Fundamental Research Funds for the Central Universities (Nos. N172302001, N182306001, N182312007, N182304018, and N2023040), and the Research Project on the Distribution of Heavy Metals in Soil and Comprehensive Utilization Technology of Tailings in Typical Iron Tailing Reservoir Areas of Hebei Province (No. 802060671901).

Publisher Copyright:
© 2021, The Author(s).

Keywords

cathode materials
configuration entropy
electrochemical performance
medium-entropy oxide (MEO)
sodium-ion batteries (SIBs)

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title = "Novel P2-type layered medium-entropy ceramics oxide as cathode material for sodium-ion batteries",

abstract = "High-entropy oxides (HEOs) and medium-entropy oxides (MEOs) are new types of single-phase solid solution materials. MEOs have rarely been reported as positive electrode material for sodium-ion batteries (SIBs). In this study, we first proposed the concept of the application of MEOs in SIBs. P2-type 3-cation oxide Na2/3Ni1/3Mn1/3Fe1/3O2 (NaNMF) and 4-cation oxide Na2/3Ni1/3Mn1/3Fe1/3−xAlxO2 (NaNMFA) were prepared using the solid-state method, rather than the doping technology. In addition, the importance of the concept of entropy stabilization in material performance and battery cycling was demonstrated by testing 3-cation (NaNMF) and 4-cation (NaNMFA) oxides in the same system. Thus, NaNMFA can provide a reversible capacity of about 125.6 mAh·g−1 in the voltage range of 2–4.2 V, and has enhanced cycle stability. The capacity and decay law of the MEO batteries indicate that the configurational entropy (1.28 R (NaNMFA) > 1.10 R (NaNMF)) of the cationic system, is the main factor affecting the structural and cycle stability of the electrode material. This work emphasizes that the rational design of MEOs with novel structures and different electrochemically active elements may be the strategy for exploring high-performance SIB cathode materials in next-generation energy storage devices. [Figure not available: see fulltext.].",

keywords = "cathode materials, configuration entropy, electrochemical performance, medium-entropy oxide (MEO), sodium-ion batteries (SIBs)",

author = "Shengxue Yan and Shaohua Luo and Liu Yang and Jian Feng and Pengwei Li and Qing Wang and Yahui Zhang and Xin Liu",

note = "Funding Information: This work was financially supported by the National Natural Science Foundation of China (Nos. 51674068, 51874079, 51804035, and 11775226), the Natural Science Foundation of Hebei Province (No. E2018501091), the Hebei Province Key Research and Development Plan Project (No. 19211302D), the Fundamental Research Funds for the Central Universities (Nos. N172302001, N182306001, N182312007, N182304018, and N2023040), and the Research Project on the Distribution of Heavy Metals in Soil and Comprehensive Utilization Technology of Tailings in Typical Iron Tailing Reservoir Areas of Hebei Province (No. 802060671901). Publisher Copyright: {\textcopyright} 2021, The Author(s).",

year = "2022",

month = jan,

doi = "10.1007/s40145-021-0524-8",

language = "English",

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T1 - Novel P2-type layered medium-entropy ceramics oxide as cathode material for sodium-ion batteries

AU - Yan, Shengxue

AU - Luo, Shaohua

AU - Yang, Liu

AU - Feng, Jian

AU - Li, Pengwei

AU - Wang, Qing

AU - Zhang, Yahui

AU - Liu, Xin

N1 - Funding Information: This work was financially supported by the National Natural Science Foundation of China (Nos. 51674068, 51874079, 51804035, and 11775226), the Natural Science Foundation of Hebei Province (No. E2018501091), the Hebei Province Key Research and Development Plan Project (No. 19211302D), the Fundamental Research Funds for the Central Universities (Nos. N172302001, N182306001, N182312007, N182304018, and N2023040), and the Research Project on the Distribution of Heavy Metals in Soil and Comprehensive Utilization Technology of Tailings in Typical Iron Tailing Reservoir Areas of Hebei Province (No. 802060671901). Publisher Copyright: © 2021, The Author(s).

PY - 2022/1

Y1 - 2022/1

N2 - High-entropy oxides (HEOs) and medium-entropy oxides (MEOs) are new types of single-phase solid solution materials. MEOs have rarely been reported as positive electrode material for sodium-ion batteries (SIBs). In this study, we first proposed the concept of the application of MEOs in SIBs. P2-type 3-cation oxide Na2/3Ni1/3Mn1/3Fe1/3O2 (NaNMF) and 4-cation oxide Na2/3Ni1/3Mn1/3Fe1/3−xAlxO2 (NaNMFA) were prepared using the solid-state method, rather than the doping technology. In addition, the importance of the concept of entropy stabilization in material performance and battery cycling was demonstrated by testing 3-cation (NaNMF) and 4-cation (NaNMFA) oxides in the same system. Thus, NaNMFA can provide a reversible capacity of about 125.6 mAh·g−1 in the voltage range of 2–4.2 V, and has enhanced cycle stability. The capacity and decay law of the MEO batteries indicate that the configurational entropy (1.28 R (NaNMFA) > 1.10 R (NaNMF)) of the cationic system, is the main factor affecting the structural and cycle stability of the electrode material. This work emphasizes that the rational design of MEOs with novel structures and different electrochemically active elements may be the strategy for exploring high-performance SIB cathode materials in next-generation energy storage devices. [Figure not available: see fulltext.].

AB - High-entropy oxides (HEOs) and medium-entropy oxides (MEOs) are new types of single-phase solid solution materials. MEOs have rarely been reported as positive electrode material for sodium-ion batteries (SIBs). In this study, we first proposed the concept of the application of MEOs in SIBs. P2-type 3-cation oxide Na2/3Ni1/3Mn1/3Fe1/3O2 (NaNMF) and 4-cation oxide Na2/3Ni1/3Mn1/3Fe1/3−xAlxO2 (NaNMFA) were prepared using the solid-state method, rather than the doping technology. In addition, the importance of the concept of entropy stabilization in material performance and battery cycling was demonstrated by testing 3-cation (NaNMF) and 4-cation (NaNMFA) oxides in the same system. Thus, NaNMFA can provide a reversible capacity of about 125.6 mAh·g−1 in the voltage range of 2–4.2 V, and has enhanced cycle stability. The capacity and decay law of the MEO batteries indicate that the configurational entropy (1.28 R (NaNMFA) > 1.10 R (NaNMF)) of the cationic system, is the main factor affecting the structural and cycle stability of the electrode material. This work emphasizes that the rational design of MEOs with novel structures and different electrochemically active elements may be the strategy for exploring high-performance SIB cathode materials in next-generation energy storage devices. [Figure not available: see fulltext.].

KW - cathode materials

KW - configuration entropy

KW - electrochemical performance

KW - medium-entropy oxide (MEO)

KW - sodium-ion batteries (SIBs)

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JO - Journal of Advanced Ceramics

JF - Journal of Advanced Ceramics

IS - 1

ER -

Novel P2-type layered medium-entropy ceramics oxide as cathode material for sodium-ion batteries

Abstract

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