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从生命周期评估的角度对离子电池回收的不同预处理过程进行比较

Umut Kar¹, Ario Fahimi¹, Tomasz Suponik²

¹Department of Mining and Metallurgical Engineering, University of Nevada, Reno 1664 N. Virginia St, Reno, NV, 89557, USA.

Journal of environmental management

|August 1, 2025

概括

使用过的离子电池 (LIB) 的可持续回收至关重要. 低温预处理,结合无溶剂的排放和研磨,为LIB回收提供了高效和可扩展的解决方案,平衡了技术,环境和经济因素.

科学领域:

材料科学与工程材料科学与工程
环境科学与工程环境科学与工程
化学工程是化学工程的重要组成部分.

背景情况:

电动汽车和便携式电子产品的需求不断增加,推动了对使用过的离子电池 (S-LIB) 可持续管理的需求.
有效的S-LIB回收对于资源回收,环境保护和减轻资源短缺至关重要.
目前的预处理阶段 (排放,粘合物去除,碎片化) 带来了重大的安全性,成本和可扩展性挑战.

研究的目的:

评估S-LIBs的四种不同的预治疗策略.
从技术,环境和经济角度评估这些战略.
为工业规模的S-LIB回收确定最佳的预处理方法.

主要方法:

四种S-LIB预处理选项的比较,包括各种排放,粘合物去除和研磨技术.
生命周期评估 (LCA) 评估环境影响,特别是全球变暖潜力.
经济分析侧重于成本效益和可扩展性因素,如液和溶剂使用.

主要成果:

低温排放与低温研磨 (无溶剂处理) 结合,证明了工艺效率和实施简单性的良好平衡.
排放的NaCl溶液产生了最低的全球变暖潜力,但引发了运营和安全方面的担忧.
用于去除粘合剂的N-甲基-2-pyrrolidone (NMP) 显著增加了成本和环境负担.

结论:

低温预处理为安全,高效和可扩展的S-LIB回收提供了一个有希望的方法.
优化冷剂的使用和尽量减少溶剂依赖对于经济可行性至关重要.
这些发现为开发可持续和经济有效的工业S-LIB回收过程提供了宝贵的见解.

关键词:

经济分析经济分析氧化 (LiCoO) 的二) 氧化.生命周期评估生命周期评估离子电池是一种离子电池.预处理预处理回收回收是回收的过程.

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