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在各种复杂介质中对离子电池材料中的有毒金属进行高精度分析

Tianyu Qi¹, Xuezhi Yang¹, Ya Liu¹

¹School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, China.

Analytica chimica acta

|November 12, 2024

概括

使用过的离子电池 (LIB) 的不充分回收可能会造成环境污染. 本研究开发了一种精确的分析方法,用于检测LIB和环境样本中的有毒金属,揭示了电池阳极中大量的金属积累.

科学领域:

环境化学环境化学
分析化学分析化学
材料科学材料科学材料科学

背景情况:

目前对使用过的离子电池 (LIB) 的规定不足,造成重金属和污染的风险.
准确的分析方法对于了解LIB和受污染的环境介质中有毒金属分布至关重要.
在LIB组件的化学复杂性阻碍了验证的分析技术的发展.

研究的目的:

建立一个全面和精确的分析方法,在LIBs中对各种环境矩阵中的有毒金属进行分析.
验证各种LIB材料和环境样本中有毒金属的分析技术.
阐明有毒金属在废弃LIB中的发生和分布,以进行风险评估和提高回收利用.

主要方法:

开发了针对不同LIB组件的定制消化方案,使用皇家水,酸,皇家水与酸,以及NaOH融合.
验证了在污水,土壤和生物矩阵中的LIB材料中分析有毒金属的方法.
采用质谱分析与优化的内部标准元素.

主要成果:

在环境样本中获得高回收率 (83.6%~115.5%) 的阴极材料.
在使用过的LIBs的石墨阳极中发现了大量的和重金属积累.
成功分析了各种LIB组件和复杂的环境介质中的有毒金属.

结论:

本研究介绍了各种环境介质中LIB材料中有毒金属的第一个验证的分析技术,结合了酸性消化和性聚变.
开发的方法提供了强大的支持,用于消耗LIBs的环境风险评估.
阐明了废弃LIB中有毒金属的存在,为改善回收和风险管理提供了洞察力.

关键词:

环境媒体是环境媒体.离子电池是一种离子电池.质谱测量质量谱测量有毒金属有毒金属微量分析微量分析

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