Research on closed-loop recycling and regeneration technology of lithium-depleted LiFePO4 cathode waste

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成果类型：

期刊论文

作者：

Yang, Qihai;Chen, Lixia;Xiang, Youtao;Zhao, Tingting*;Luo, Jing;...

通讯作者：

Zhao, Tingting;Song, LB;Yan, QX

作者机构：

[Xiang, Youtao; Yang, Qihai; Xiao, Zhongliang; Luo, Jing; Song, Liubin; Zhao, Tingting; Chen, Lixia] Changsha Univ Sci & Technol, Sch Chem & Pharmaceut Engn, Changsha 410114, Hunan, Peoples R China.

[Xiang, Youtao; Yang, Qihai; Xiao, Zhongliang; Luo, Jing; Song, Liubin; Zhao, Tingting; Chen, Lixia] Changsha Univ Sci & Technol, Hunan Prov Key Lab Mat Protect Elect Power & Trans, Changsha 410114, Hunan, Peoples R China.

[Yan, Qunxuan] Hunan Jinkai Cycle Technol Co LTD, Yiyang 413000, Hunan, Peoples R China.

通讯机构：

[Zhao, TT; Song, LB ] C

[Yan, QX ] H

Changsha Univ Sci & Technol, Sch Chem & Pharmaceut Engn, Changsha 410114, Hunan, Peoples R China.

Changsha Univ Sci & Technol, Hunan Prov Key Lab Mat Protect Elect Power & Trans, Changsha 410114, Hunan, Peoples R China.

Hunan Jinkai Cycle Technol Co LTD, Yiyang 413000, Hunan, Peoples R China.

语种：

英文

期刊：

Journal of Materials Science

ISSN：

0022-2461

年：

2025

卷：

期：

页码：

16292-16308

DOI：

10.1007/s10853-025-11413-4

基金类别：

National Natural Science Foundation of China [21501015]; Hunan provincial natural science foundation of China [2025JJ60894]

机构署名：

本校为第一且通讯机构

院系归属：

化学与生物工程学院

摘要：

Efficient recycling and regeneration of LiFePO4 cathode waste from spent lithium-ion batteries is crucial for achieving resource recovery and promoting sustainable development. In light of the challenges associated with regenerating delithiated LiFePO4 waste (delithiated slag) due to its elevated impurity levels, this study presents a closed-loop recovery and regeneration technology that leverages a coupled process involving sulfuric acid leaching followed by hydrothermal precipitation. By optimizing the sulfuric acid leaching conditions (concentration 2.5 mol/L, temperature 60 degrees C, time...

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Research on closed-loop recycling and regeneration technology of lithium-depleted LiFePO4 cathode waste

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