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  1. 学術雑誌論文
  2. 5 技術(工学)

Structurally controlled Na4VMn(PO4)3 cathodes via alkali metal cation substitution for high-performance sodium-ion batteries

http://hdl.handle.net/10228/0002001738
http://hdl.handle.net/10228/0002001738
d7760ff5-69a9-491f-870b-e83c273eceb8
名前 / ファイル ライセンス アクション
10452721.pdf 10452721.pdf (3.5 MB)
 Download is available from 2026/12/19.
Item type 共通アイテムタイプ(1)
公開日 2025-07-02
タイトル
タイトル Structurally controlled Na4VMn(PO4)3 cathodes via alkali metal cation substitution for high-performance sodium-ion batteries
言語 en
著者 Sun, Jiaze

× Sun, Jiaze

en Sun, Jiaze

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Meng, Xianhe

× Meng, Xianhe

en Meng, Xianhe

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Hui, Yitao

× Hui, Yitao

en Hui, Yitao

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Shen, Qi

× Shen, Qi

en Shen, Qi

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Fan, Meiqiang

× Fan, Meiqiang

en Fan, Meiqiang

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Zhang, Jiaying

× Zhang, Jiaying

en Zhang, Jiaying

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Wang, Xiong

× Wang, Xiong

en Wang, Xiong

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Jiang, Hongmin

× Jiang, Hongmin

en Jiang, Hongmin

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Kang, Qiaoling

× Kang, Qiaoling

en Kang, Qiaoling

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Yan, Lijing

× Yan, Lijing

en Yan, Lijing

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Wan, Chubin

× Wan, Chubin

en Wan, Chubin

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馬, 廷麗

× 馬, 廷麗

WEKO 21419
e-Rad_Researcher 20380545
Scopus著者ID 7402783978
ORCiD 0000-0002-3310-459X
九工大研究者情報 100000666

en Ma, Tingli

ja 馬, 廷麗

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著作権関連情報
言語 en
権利情報 Copyright (c) Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
抄録
内容記述タイプ Abstract
内容記述 The Na superionic conductor (NASICON)-type Na4VMn(PO4)3 (NVMP), with its three-dimensional framework and high operating voltage, has demonstrated great potential as a cathode material for Sodium-ion batteries (SIBs). However, its performance is hindered by the Jahn-Teller effect from Mn3+ and slow Na+ diffusion kinetics, leading to capacity fade and structural instability. In this study, Li+ and K+ cations were separately doped into the NVMP structure to improve electrochemical performance. Li-doping enhanced the V3+/V4+ redox activity and significantly reduced the Jahn-Teller effect, contributing to a high-capacity retention of 97.7 % after 100 cycles at 1 C and 96.1 % after 1000 cycles at 10 C. This high-rate stability highlights the role of Li-doping in maintaining structural integrity and efficient ion transport under fast cycling conditions. Meanwhile, K-doping improved the structural stability by stabilizing V3+ oxidation states, leading to a capacity retention of 110.3 mAh g−1 after 100 cycles at 1 C and a discharge capacity of 99 mAh g−1 at 10 C. X-ray photoelectron spectroscopy (XPS) further confirmed that both Li+ and K+ doping suppressed the Jahn-Teller effect by regulating the Mn3+ environment, which contributed to the improved cycling stability and Na+ cation diffusion kinetics. These findings highlight the effectiveness of alkali metal cations doping as a strategy to enhance the cycling performance of NVMP cathodes for high-performance SIBs.
言語 en
書誌情報 en : Nano Energy

巻 134, p. 110587, 発行日 2024-12-19
出版社
出版者 Elsevier
言語 en
キーワード
言語 en
主題Scheme Other
主題 Sodium ion batteries
キーワード
言語 en
主題Scheme Other
主題 NASICON
キーワード
言語 en
主題Scheme Other
主題 Na4VMn(PO4)3
キーワード
言語 en
主題Scheme Other
主題 Alkali-metal cations
キーワード
言語 en
主題Scheme Other
主題 Jahn-Teller effect
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
DOI
識別子タイプ DOI
関連識別子 https://doi.org/10.1016/j.nanoen.2024.110587
ISSN
収録物識別子タイプ PISSN
収録物識別子 2211-2855
ISSN
収録物識別子タイプ EISSN
収録物識別子 2211-3282
研究者情報
URL https://hyokadb02.jimu.kyutech.ac.jp/html/100000666_ja.html
論文ID(連携)
値 10452721
連携ID
値 14598
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