Uncovering mechanism behind tungsten bulk/grain-boundary modification of Ni-rich cathode

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成果类型：

期刊论文

作者：

Li, Lingjun*;Chen, Qiheng;Jiang, Mingzhu;Ning, Tianxiang;Tan, Lei;...

通讯作者：

Li, Lingjun;Zou, KY

作者机构：

[Li, Lingjun; Chen, Qiheng; Tan, Lei; Jiang, Mingzhu; Zou, Kangyu; Ning, Tianxiang] Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Peoples R China.

[Ji, Xiaobo] Cent South Univ, Coll Chem & Chem Engn, Changsha 410083, Peoples R China.

[Wu, Feixiang; Zheng, Junchao; Zhang, Xiahui; Wang, Jiexi] Cent South Univ, Sch Met & Environm, Changsha 410083, Peoples R China.

[Wu, Qing] Cent South Univ, Sch Informat, Changsha 410083, Peoples R China.

[Wu, Qing] Cent South Univ, Network Ctr, Changsha 410083, Peoples R China.

通讯机构：

[Li, LJ; Zou, KY ] C

Changsha Univ Sci & Technol, Sch Mat Sci & Engn, Changsha 410114, Peoples R China.

语种：

英文

关键词：

Tungsten diffusion;Dual-modification;Dynamic aspect;Thermodynamic perspective;Ni-rich cathode

期刊：

Energy Storage Materials

ISSN：

2405-8297

年：

2025

卷：

页码：

104016

DOI：

10.1016/j.ensm.2025.104016

基金类别：

CRediT authorship contribution statement Lingjun Li: Writing – review & editing, Writing – original draft, Methodology, acquisition, Formal analysis, Conceptualization. Qiheng Chen: Investigation, Formal analysis, Data curation. Mingzhu Jiang: Investigation, Data curation. Tianxiang Ning: Methodology, Investigation. Lei Tan: Formal analysis, Conceptualization. Xiahui Zhang: Formal analysis, Data curation. Junchao Zheng: Software, Resources. Jiexi Wang: Resources, Methodology, Data curation. Qing Wu: Software, Resources,

机构署名：

本校为第一且通讯机构

院系归属：

材料科学与工程学院

摘要：

Introducing foreign elements is regarded as a promising strategy for realizing bulk doping/grain boundary (GB) coating to enhance structural/interfacial stabilities of Ni-rich cathodes. However, directionally achieving control over simultaneous bulk doping and GB coating dual-modification is difficult due to the unclear interdiffusion constant between foreign element and primary components (Ni, Co, and Mn). Herein, a novel mechanism for tungsten (W) diffusion into the interior of Ni-rich cathode has been elucidated, in which the interdiffusion coefficients between W 6+ and transition metal cat...

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Uncovering mechanism behind tungsten bulk/grain-boundary modification of Ni-rich cathode

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