消耗的离子电池的整体回收通过闪光焦耳加热
Shichen Xu1, Justin Sharp1, Qiming Liu1
1Department of Chemistry, Rice University, Houston, TX, 77005, USA.
Advanced materials (Deerfield Beach, Fla.)
|November 13, 2025
概括
一种新的闪光焦尔加热和氧化 (FJH-ClO) 方法有效地回收离子电池 (LIB). 这种可持续的工艺以高纯度回收和等贵金属,并大大降低成本.
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:
- 对离子电池 (LIB) 的需求不断增加,需要可持续的回收解决方案.
- 传统的热金和水金方法用于LIB回收,面临着高能耗和废水产生的挑战.
- 需要有效和环保的方法来从消耗的LIB中回收关键金属.
研究的目的:
- 开发和介绍一种选择性的快速焦尔加热化和氧化 (FJH-ClO) 策略,以有效地从已耗尽的LIB中分离金属.
- 证明FJH-ClO工艺对各种阴极材料 (LCO,LFP,LMFP) 和阳极石墨的适用性.
- 评估拟议的回收方法的经济和环境可行性.
主要方法:
- 选择性闪光 Joule加热对阴极金属进行化60秒.
- 过渡金属化物的氧化成氧化物,以基于差异水溶性从分离.
- 将FJH-ClO工艺应用于从已耗尽的LIBs中获得的黑质量,包括石墨,LCO,LFP和LMFP材料.
主要成果:
- 实现了高纯度和回收率的回收材料:石墨 (约100%纯度,85%的产量), (99%纯度,97%的产量) 和 (99%纯度,92%的产量).
- 格拉姆尺度实验证实了该方法的可扩展性,保持高效率和选择性.
- 生命周期和技术经济分析显示,能源,时间和试剂消耗大幅减少,导致运营成本降低高达92%.
结论:
- FJH-ClO过程为回收LIB提供了一种高效,有选择性和可扩展的方法.
- 这种方法通过减少环境影响和运营成本,显著改善了传统的回收技术.
- FJH-ClO战略为从废弃的离子电池中回收关键金属提供了一个有希望的可持续解决方案.
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