Phase Change Mechanism of Spent LiFePO<sub>4</sub> Cathode Material in Regeneration Process

doi:10.1007/s11837-024-07082-4

IMR OpenIR

	Phase Change Mechanism of Spent LiFePO₄ Cathode Material in Regeneration Process
	He, Jiayi 1; Tang, Junjie 1; Sun, Yuan 2; Zhou, Yizhou 2; Wang, Pengfei 1; Shi, Fanian 1
通讯作者	Tang, Junjie(tangjunjie1987@sut.edu.cn) ; Sun, Yuan(yuansun@imr.ac.cn)
	2024-12-31
发表期刊	JOM
ISSN	1047-4838
页码	10
摘要	New energy vehicles are gradually becoming widespread in China, and the quantity of installed and retired power LiFePO4 batteries has increased. The traditional wet recovery process of LiFePO4 cathode materials produces a lot of waste acid and waste alkali, which is inconsistent with the modern industrial concept of zero emissions and zero waste. This paper proposes a novel environmental protection process for direct remediation of spent LiFePO4. Li2CO3 is the lithium source, and expired food-grade sucrose is used to reduce the spent LiFePO4 cathode materials, which are then regenerated under the premise of achieving zero emissions and zero waste. When the addition of Li2CO3 is 4 wt% and the sucrose content is 15 wt%, the regenerated LiFePO4/C material exhibits uniform particle size and favorable morphology. At 0.1 C, the initial discharge specific capacity is 156.15 mAh g-1. At 5 C, its discharge performance is 106.01 mAh g-1, and the electrochemical performance of the regenerated LiFePO4/C material is similar to that of the commercial LiFePO4. Moreover, the regulation mechanism of lithium replenishment repair in LiFePO4 cathode materials is explored from the perspectives of material structure and physical phase composition.
资助者	Liaoning Provincial Department of Education general program, China ; Liaoning Provincial Department of Education general program, China ; Liaoning Province Science and Technology Plan Joint Program, China (Natural Science Foundation - Surface Project)
DOI	10.1007/s11837-024-07082-4
收录类别	SCI
语种	英语
资助项目	Liaoning Provincial Department of Education general program, China[JYTMS20231217] ; Liaoning Provincial Department of Education general program, China ; Liaoning Province Science and Technology Plan Joint Program, China (Natural Science Foundation - Surface Project)
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mineralogy ; Mining & Mineral Processing
WOS记录号	WOS:001387247100001
出版者	SPRINGER
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/181004
专题	中国科学院金属研究所
通讯作者	Tang, Junjie; Sun, Yuan
作者单位	1.Shenyang Univ Technol, Sch Environm & Chem Engn, Shenyang 110870, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	He, Jiayi,Tang, Junjie,Sun, Yuan,et al. Phase Change Mechanism of Spent LiFePO₄ Cathode Material in Regeneration Process[J]. JOM,2024:10.
APA	He, Jiayi,Tang, Junjie,Sun, Yuan,Zhou, Yizhou,Wang, Pengfei,&Shi, Fanian.(2024).Phase Change Mechanism of Spent LiFePO₄ Cathode Material in Regeneration Process.JOM,10.
MLA	He, Jiayi,et al."Phase Change Mechanism of Spent LiFePO₄ Cathode Material in Regeneration Process".JOM (2024):10.