Inherent fluorine impurity enhances the regeneration of highly degraded layered cathodes with suppressed lattice oxygen escape

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成果类型：

期刊论文

作者：

Huang, Meiting;Yu, Haoxuan;Chen, Liang;Yang, Haitao;Wang, Zhihao;...

通讯作者：

Yang, Liming;Luo, XB;Chen, L

作者机构：

[Yang, Liming; Luo, XB; Yu, Haoxuan; Yang, Haitao; Chen, Kechun; Li, Yifeng; Wang, Zhihao; Luo, Xubiao; Yang, LM; Huang, Meiting] Nanchang Hangkong Univ, Natl Local Joint Engn Res Ctr Heavy Met Pollutants, Nanchang 330063, Peoples R China.

[Chen, Liang; Chen, L] Hunan Inst Sci & Technol, Sch Chem & Chem Engn, Key Lab Hunan Prov Adv Carbon Based Funct Mat, Yueyang 414006, Peoples R China.

[Yang, Haitao] Nanchang Hangkong Univ, Sch Mat Sci & Engn, Nanchang 330063, Peoples R China.

[Xu, Chenxi] Cent South Univ Forestry & Technol, Coll Mat Sci & Engn, Changsha 410004, Peoples R China.

[Yang, Liming; Luo, Xubiao] Jinggangshan Univ, Sch Life Sci, Jian 343009, Peoples R China.

通讯机构：

[Luo, XB ; Yang, LM] N

[Chen, L ] H

Nanchang Hangkong Univ, Natl Local Joint Engn Res Ctr Heavy Met Pollutants, Nanchang 330063, Peoples R China.

Hunan Inst Sci & Technol, Sch Chem & Chem Engn, Key Lab Hunan Prov Adv Carbon Based Funct Mat, Yueyang 414006, Peoples R China.

语种：

英文

关键词：

Spent NCM;PVDF impurity;Direct regeneration;Lattice oxygen escape;F doping

期刊：

Chemical Engineering Journal

ISSN：

1385-8947

年：

2025

卷：

514

页码：

162855

DOI：

10.1016/j.cej.2025.162855

基金类别：

Key Project of Jiangxi Provincial Research and Development Program [20223BBG74006, 20243BBI91001]; Jiangsu Special Fund on Technology Inno-vation of Carbon Dioxide Peaking and Carbon Neutrality [BT2024011]; Key Project of Ganzhou City Research and Development Program [2023PGX17350]; Science Technology Tal-ents Lifting Project of Hunan Province [2022TJ-N16]; Natural Sci-ence Foundation of Hunan Province [2024JJ4022, 2023JJ30277, 2025JJ60382]; Scientific Research Fund of Hunan Provincial Education Department, China [24B0270]

机构署名：

本校为其他机构

院系归属：

材料科学与工程学院

摘要：

To face the large–scale retirement of lithium–ion batteries (LIBs), direct regeneration of spent NCM622 (LiNi 0.6 Co 0.2 Mn 0.2 O 2 ) cathode can effectively alleviate the current resource and environmental pressures. During the recycling process, the binder polyvinylidene fluoride (PVDF) inevitably becomes an inherent impurity in the active material. Whether the inherent impurity can assist the regeneration of spent NCM or not is becoming a focus of attentions. Hereby, a closed–loop direct regeneration strategy that transforms the inherent ...

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Inherent fluorine impurity enhances the regeneration of highly degraded layered cathodes with suppressed lattice oxygen escape

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