| アイテムタイプ |
共通アイテムタイプ(1) |
| 公開日 |
2025-07-02 |
| タイトル |
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タイトル |
High-entropy engineering enables O3-type layered oxide with high structural stability and reaction kinetic for sodium storage |
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言語 |
en |
| 著者 |
Wang, Xiong
Kang, Qiaoling
Sun, Jiaze
Yang, Zheng
Bai, Zhenchao
Yan, Lijing
Meng, Xianhe
Wan, Chubin
馬, 廷麗
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| 著作権関連情報 |
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権利情報 |
Copyright (c) 2025 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies. |
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言語 |
en |
| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
O3-type layered oxides are considered promising cathode materials for sodium-ion batteries (SIBs) due to their high theoretical capacity, but they often face issues with structural instability and poor sodium-ion diffusion, leading to rapid capacity fading. In this work, we introduce a high-entropy approach combined with synergistic multi-metal effects to address these limitations by enhancing both the structural stability and reaction kinetics. A novel O3-type layered high-entropy cathode material, Na0.9Fe0.258Co0.129Ni0.258Mn0.258Ti0.097O2 (TMO5), which was synthesized via a straightforward solid-phase method for easy mass production. Experimental analysis combined with in/ex-situ characterization verifies that high-entropy metal ion mixing contributes to the improved reversibility of the redox reaction and O3-P3-O3 phase transition behaviors, as well as the enhanced Na+ diffusivity. Benefit from the advantage of structure and composition, the TMO5 exhibits a higher initial specific capacity of 159.6 mAh g−1 and an impressive capacity retention of 85.6 % after 100 cycles at 2 C with the specific capacity of 110.1 mAh g−1. This work showcases high-entropy O3-type layered oxides as a promising pathway for achieving robust, high-performance SIB cathodes. |
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言語 |
en |
| 書誌情報 |
en : Journal of Colloid and Interface Science
巻 691,
p. 137438,
発行日 2025-08
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| 出版社 |
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出版者 |
Elsevier |
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言語 |
en |
| 言語 |
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言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1016/j.jcis.2025.137438 |
| ISSN |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0021-9797 |
| ISSN |
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収録物識別子タイプ |
EISSN |
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収録物識別子 |
1095-7103 |
| 研究者情報 |
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|
URL |
https://hyokadb02.jimu.kyutech.ac.jp/html/100000666_ja.html |
| 論文ID（連携） |
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|
値 |
10451764 |
| 連携ID |
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値 |
14589 |
10451764.pdf (1.1 MB)
