化工新型材料

化工新型材料 ›› 2026, Vol. 54 ›› Issue (8) : 267-272. DOI: 10.19817/j.cnki.issn1006-3536.2026.08.022

开发与应用

磷铁渣制备电池级磷酸铁技术研究进展

作者信息 +

Research progress on the preparation technology of battery-grade iron phosphate from phosphoric iron slag

Dai Wei, Lin Zizeng

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文章历史 +

Received
2025-09-10
Issue Date	Revised Date
2026-08-20	2025-09-10

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摘要

磷酸铁锂(LiFePO₄)电池凭借优异的循环寿命、安全性能和环境友好特性,已成为电动汽车及储能系统的核心动力源。随着大量废旧电池逐渐接近其使用寿命的终点,如何实现废旧LiFePO₄电池中提锂尾渣的规模化再利用,成为亟需解决的关键问题。为此,比较了磷铁渣不同酸浸类型优缺点,剖析了磷铁渣再生过程中产生的铝、过渡金属及钠等三类关键杂质的处理控制方法,以推动磷铁渣回收电池级FePO₄技术的发展,为低成本、绿色高效的FePO₄生产提供理论指导和技术支持。

Abstract

Lithium iron phosphate batteries (LiFePO₄) have become the core power source for electric vehicles and energy storage systems due to their excellent cycle life,safety performance and environmental friendliness.As a large number of used batteries gradually approach the end of their service life,how to achieve large-scale reuse of lithium extraction tailings from used LiFePO₄ batteries has become a key issue that needs to be urgently addressed.Therefore,the advantages and disadvantages of different acid leaching types of phosphor iron slag were compared,and the treatment and control methods of three key impurities,namely aluminum,transition metals and sodium,produced during the regeneration process of phosphor iron slag were analyzed.The aim was to promote the development of the technology for recovering battery-grade FePO₄ from phosphor iron slag and provide theoretical guidance and technical support for low-cost,green and efficient FePO₄ production.

关键词

磷酸铁锂电池 / 磷铁渣 / 磷酸铁制备

Key words

lithium iron phosphate battery / phosphorus iron slag / iron phosphate preparation

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磷铁渣制备电池级磷酸铁技术研究进展[J]. 化工新型材料, 2026, 54(8): 267-272 DOI:10.19817/j.cnki.issn1006-3536.2026.08.022

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基金资助

国家自然科学基金(51608272)

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