Purification of Li2CO3 Obtained through Pyrometallurgical Treatment of NMC Black Mass from Electric Vehicle Batteries.

IF 7.5 2区 化学 Q1 CHEMISTRY, MULTIDISCIPLINARY ChemSusChem Pub Date : 2024-11-05 DOI:10.1002/cssc.202401722
Laura Rosso, Lorena Alcaraz, Olga Rodríguez-Largo, Félix A López
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Abstract

The recycling of lithium batteries is essential for a sustainable energy transition. However, impurities in the products obtained from the black mass can lower their market value. In this work, lithium carbonate, which has the highest market share among lithium-based products, is purified using distilled water at controlled temperature, time and stirring speed. The purification process involves dissolving lithium carbonate in distilled water at low temperatures (between 0 and 10 °C), followed by crystallization through water evaporation. Optimal conditions yielded lithium carbonate with a purity of 99.66 % after two stages of purification. The dependence of the variables on the final purity was deeply analyzed and the thermodynamics of the reaction was studied, confirming the exothermic nature of the dissolution reaction.

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通过火法冶金处理电动汽车电池中的 NMC 黑质,提纯 Li2CO3。
锂电池的回收利用对于可持续能源转型至关重要。然而,从黑块中获得的产品中的杂质会降低其市场价值。在这项工作中,使用蒸馏水在可控温度、时间和搅拌速度下对锂基产品中市场份额最高的碳酸锂进行提纯。纯化过程包括在低温(0 至 10°C)下将碳酸锂溶解在蒸馏水中,然后通过水蒸发结晶。经过两个阶段的提纯,最佳条件下得到的碳酸锂纯度为 99.66%。研究人员深入分析了各变量对最终纯度的影响,并对反应的热力学进行了研究,证实了溶解反应的放热性质。
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来源期刊
ChemSusChem
ChemSusChem 化学-化学综合
CiteScore
15.80
自引率
4.80%
发文量
555
审稿时长
1.8 months
期刊介绍: ChemSusChem Impact Factor (2016): 7.226 Scope: Interdisciplinary journal Focuses on research at the interface of chemistry and sustainability Features the best research on sustainability and energy Areas Covered: Chemistry Materials Science Chemical Engineering Biotechnology
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