Dual pinning engineering via K/Zr co-doping suppresses interlayer gliding and Jahn-Teller distortion in P2-Na0.67Ni0.33Mn0.67O2 for ultra-stable sodium-ion batteries

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期刊论文

作者：

Ying Liu;Bing-Hao Wang;Hao-Tian Tong;Ting-Liang Xie;Shuang-Feng Yin

通讯作者：

Ting-Liang Xie<&wdkj&>Shuang-Feng Yin

作者机构：

[Ying Liu; Bing-Hao Wang; Hao-Tian Tong; Ting-Liang Xie] College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China

College of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China

[Shuang-Feng Yin] College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China<&wdkj&>College of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China

通讯机构：

[Ting-Liang Xie; Shuang-Feng Yin] C

College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China<&wdkj&>College of Chemistry and Chemical Engineering, Central South University of Forestry and Technology, Changsha 410004, PR China<&wdkj&>College of Chemistry and Chemical Engineering, Advanced Catalytic Engineering Research Center of the Ministry of Education, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, PR China

语种：

英文

期刊：

Chemical Engineering Science

ISSN：

0009-2509

年：

2026

卷：

321

页码：

122806

DOI：

10.1016/j.ces.2025.122806

基金类别：

CRediT authorship contribution statement Ying Liu: Writing – original draft, Software, Formal analysis, Data curation. Bing-Hao Wang: Validation, Software, Formal analysis. Hao-Tian Tong: Writing – original draft, Formal analysis, Data curation. Ting-Liang Xie: Writing – review & editing, Supervision, Project administration, acquisition, Conceptualization. Shuang-Feng Yin: Supervision, acquisition.

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摘要：

P2-Na 0.67 Ni 0.33 Mn 0.67 O 2 (NNM) is a promising cathode material for sodium-ion batteries, offering a high-voltage plateau (3.7 V) and large theoretical capacity (170 mAh/g). However, its practical application is hindered by structural degradation from interlayer gliding and Mn 3+ -driven Jahn-Teller distortion. To address these, we engineer a dual pinning strategy through K/Zr co-doping, creating a robust cathode (NKNMZ) with exceptional stability. XPS confirms Zr 4+ doping reduces Mn 3+ content, mitigating Jahn-Teller distortion. Electroc...

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Dual pinning engineering via K/Zr co-doping suppresses interlayer gliding and Jahn-Teller distortion in P2-Na0.67Ni0.33Mn0.67O2 for ultra-stable sodium-ion batteries

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