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Updated: Sep 18, 2025

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一个闭环过程,用于从已耗尽的LiFePO电池中快速和选择性地提取和再合成₄

Ruijing Liu^1,2, Yuxiao Liu^1,2, Jianjiang Li^1,2

¹College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China.

Molecules (Basel, Switzerland)

|June 27, 2025

概括

本研究介绍了一种快速和选择性的方法来回收铁酸盐 (LFP) 电池. 该工艺回收高纯度的碳酸和复合LFP阴极,证明经济可行和环保.

科学领域:

材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.
环境科学环境科学

背景情况:

铁酸盐 (LFP) 电池在储能中的使用越来越多,这给可持续资源管理和环境保护带来了重大挑战.
从使用过的LFP电池中有效地回收和回收关键材料对于循环经济至关重要.

研究的目的:

开发一种新的,经济可行的,高效的方法,用于从已使用的LFP电池中快速和选择性地提取.
从回收资源中重新合成高性能LFP阴极材料.
评估拟议的回收过程的经济可行性和环境效益.

主要方法:

使用硫酸 (H2SO4) 和过氧化 (H2O2) 的选择性漏系统被用来快速提取.
高纯度的碳酸 (Li2CO3) 通过优化降水条件获得.
回收的铁酸盐 (FePO4) 和Li2CO3被用来通过碳热还原重新合成LFP阴极材料.

主要成果:

在10分钟内使用H2SO4-H2O2系统实现了98.72%的泄漏效率.
从液中成功地产生了高纯度的Li2CO3.
再生的LFP阴极材料显示了重复使用的潜力.
初步的经济分析显示,每公斤回收LFP的利为1.83美元.
该工艺使用最小的酸,具有较低的酸与摩尔比率 (0.57),突出显示了环境优势.

结论:

开发的方法为回收使用的LFP电池提供了一种绿色,高效和经济可行的策略.
这种方法对发展循环电池经济作出了重大贡献.
该工艺显示出在电池回收中工业规模应用的巨大潜力.

关键词:

LiFePO4 的使用情况.泄漏 (leaching) 泄漏 (leaching) 是指一个过程.回收过程中的回收过程.复兴再生是一种再生方式.使用过的离子电池.

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