Stabilizing Dual-Band Redox Process via Bidirectional Regulation Term in High-Voltage Sodium Layered Oxide Cathodes.

Yan Wang, Tingzhou Yang, Ziyi Sun, Xiaoyi Zhang, Pengrong Zhang, Shufeng Jia, Yongguang Zhang, Lei Yang, Zhongwei Chen

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Article in Angewandte Chemie (International ed. in English), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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9 authors.

Yan WangSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.

Tingzhou YangSchool of Chemistry and Chemical Engineering, Nantong University, Nantong, China.ORCID https://orcid.org/0000-0003-4769-2609

Ziyi SunSchool of Chemistry and Chemical Engineering, Nantong University, Nantong, China.

Xiaoyi ZhangPower Battery and Systems Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

Pengrong ZhangPower Battery and Systems Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

Shufeng JiaPower Battery and Systems Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

Yongguang ZhangPower Battery and Systems Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

Lei YangSchool of Materials Science and Engineering, Hebei University of Technology, Tianjin, China.

Zhongwei ChenPower Battery and Systems Research Center, State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.ORCID https://orcid.org/0000-0003-3463-5509

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6 · The paper itself

Abstract

Manganese-based layered oxides represent a promising cathode candidate for sodium-ion batteries due to their natural abundance and high theoretical capacity. However, their practical application remains challenged by structure phase transitions and unstable redox behavior. Herein, we proposed a high entropy-induced electronegativity strategy to stabilize dual-band redox by tuning the balance between d-d Coulomb interaction energy and the charge transfeduer term, which can enhance the covalency of metal-oxygen bonds, weaken electronic localization at oxygen sites, and stabilize the oxidized lattice oxygen. Such a strategy further increases configurational entropy and structural tolerance, promoting a robust solid-solution reaction mechanism across a wide voltage window. The obtained cathode exhibits a reversible capacity of 192.87 mAh g

Indexed as

electronegative strategyelectronic regulationmanganese‐based layered oxidessodium‐ion batteriesstructural stability

Identifiers

PMID42313679

DOI10.1002/anie.4480770

PMCPMC13480826

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