废弃锂离子电池机械加工和热处理过程中的气体生成测量与评估。
Gas generation measurement and evaluation during mechanical processing and thermal treatment of spent Li-ion batteries.
机构信息
Institute of Process Metallurgy and Metal Recycling IME, RWTH Aachen University, Intzestraße 3, 52056 Aachen, Germany.
Institute of Process Metallurgy and Metal Recycling IME, RWTH Aachen University, Intzestraße 3, 52056 Aachen, Germany.
出版信息
Waste Manag. 2019 Feb 1;84:102-111. doi: 10.1016/j.wasman.2018.11.029. Epub 2018 Nov 26.
Recycling of Li-ion batteries (LIBs) is becoming an urgent issue. However, the chemical composition and the hazard of off-gas produced during the recycling process still remain unclarified due to the complicated reactions during thermal runaway (TR). In order to meet the legislative requirements to carry out an environmentally friendly recycling, this manuscript aims to undertake quantitative analysis and toxicity evaluation of the off-gas produced in mechanical treatment and thermal treatment of LIBs. The measurements were carried out by online Fourier transform infrared spectroscopy (FTIR) and ion chromatograph (IC). The volume of total off-gas was calculated and its toxicity was evaluated by USA's Protective Action Criteria. The influences of treatment method, state-of-charge (SOC), atmosphere, and type of cathode were investigated.
锂离子电池（LIBs）的回收利用正成为一个紧迫的问题。然而，由于热失控（TR）过程中的复杂反应，化学组成和回收过程中产生的废气的危害性仍不清楚。为了满足立法要求，进行环保的回收利用，本文旨在对 LIBs 的机械处理和热处理过程中产生的废气进行定量分析和毒性评估。测量是通过在线傅里叶变换红外光谱（FTIR）和离子色谱（IC）进行的。计算了总废气的体积，并通过美国的防护行动标准对其毒性进行了评估。考察了处理方法、荷电状态（SOC）、气氛和阴极类型的影响。
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