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首页> 外文期刊>Journal of chromatography, A: Including electrophoresis and other separation methods >Analysis of acidic organo(fluoro)phosphates as decomposition product of lithium ion battery electrolytes via derivatization gas chromatography-mass spectrometry
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Analysis of acidic organo(fluoro)phosphates as decomposition product of lithium ion battery electrolytes via derivatization gas chromatography-mass spectrometry

机译：衍生化气相色谱 - 质谱 - 质谱法分析酸性有机（氟）磷酸盐作为锂离子电池电解质的分解产物

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摘要

Nowadays, lithium ion batteries (LIBs) are the preferred energy supply for consumer electronics and electric vehicles. But, intrinsic reactions in the LIB system lead to a reduced battery life and impaired safety properties. Organo(fluoro)phosphates (O(F)Ps) as decomposition product of the conducting salt and the organic carbonate solvent molecules of the LIB electrolyte are of high interest due to structural similarities to chemical warfare agents and therefore a supposedly high toxicity. The reaction cascade shows a large variety of O(F)Ps including a wide spread of polarity. In this study, an approach for the investigation of acidic O(F)Ps with gas chromatography-mass spectrometry after derivatization is conducted. Analysis of a model substance, spike experiments in the electrolyte matrix and investigation of thermally treated electrolyte were performed. As a result, derivatization could be achieved in less than three minutes and screening could successfully be shown without impairing the originality of the sample (matrix). This derivatization approach shows the possibility of analysis for both acidic and non-acidic O(F)Ps using only one method. (C) 2019 Elsevier B.V. All rights reserved.
机译：如今，锂离子电池（LIBS）是消费电子和电动车辆的优选能源供应。但是，Lib系统中的内在反应导致电池寿命减少和安全性能受损。有机磷酸盐（氟）磷酸盐（O（f）ps）作为导电盐的分解产物和Lib电解质的有机碳酸盐溶剂分子由于与化学战剂的结构相似性具有高兴趣，因此具有较高的毒性。反应级联显示出各种各样的O（F）PS，包括极性差异。在该研究中，进行了在衍生化之后用气相色谱 - 质谱进行酸性O（F）Ps的方法。进行模型物质的分析，进行电解质基质中的尖峰实验及热处理电解质的研究。结果，可以在不到三分钟内实现衍生化，并且可以在不损害样品（矩阵）的原创性的情况下成功显示筛选。这种衍生化方法显示了仅使用一种方法分析酸性和非酸性O（F）PS的可能性。 （c）2019 Elsevier B.v.保留所有权利。

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