Life cycle assessment of hydrometallurgical recycling for cathode active materials
Life cycle assessment of hydrometallurgical recycling for cathode active materials
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DOI：
10.1016/j.jpowsour.2023.233345
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发表时间：
2023-10
影响因子：
9.2
通讯作者：
Zheng Liu;Jarom G. Sederholm;Kai-Wei Lan;En Ju Cho;Mohammed Jubair Dipto;Y. Gurumukhi;K. F. Rabbi;M. Hatzell;N. Perry;N. Miljkovic;P. Braun;Pingfeng Wang;Yumeng Li
中科院分区：
文献类型：
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作者：
Zheng Liu;Jarom G. Sederholm;Kai-Wei Lan;En Ju Cho;Mohammed Jubair Dipto;Y. Gurumukhi;K. F. Rabbi;M. Hatzell;N. Perry;N. Miljkovic;P. Braun;Pingfeng Wang;Yumeng Li
随着电动汽车市场的蓬勃发展，电池的使用量不断增加，电池的回收已成为一个关键问题。正极活性材料是电池中最有价值的组成部分，一直受到研究人员的关注。对某阴极活性材料湿法冶金回收工艺的最佳工艺条件进行了大量的研究。然而，不同的湿法冶金回收工艺之间并没有全面的比较。对于NMC、LFP和LCO这三种广泛使用的正极活性材料，采用不同的湿法冶金回收工艺，本研究采用生命周期评价方法来评价电池和回收电池的主要环境问题。采用标准化流程和统一反应器，采用ReCiPe方法对各工序的环境影响进行评价。因此，找到了NMC、LFP和LCO最有效的湿法冶金回收工艺。此外，与评估的平均水平相比，最有效的回收过程将环境影响降低了50%以上。此外，不同正极活性材料之间的最终比较表明，考虑比容量和寿命，LFP回收对环境的影响低于NMC和LCO。
As battery usage keeps growing due to a boom in the electric vehicles market, battery recycling has become a crucial issue. Cathode active material is the most valuable component of the battery and attracts researchers’ attention. Much research has been focused on finding the optimal condition of a certain hydrometallurgical recycling process for cathode active material. However, there is no comprehensive comparison between different hydrometallurgical recycling processes. In this research, life cycle assessment is adopted to evaluate the environmental concerns, which is a major reason for using batteries and recycling batteries, of different hydrometallurgical recycling processes for three widely used cathode active materials: NMC, LFP, and LCO. The environmental impact of each process is assessed based on the ReCiPe method using standardized processes and unified reactors. As a result, the most effective hydrometallurgical recycling processes for NMC, LFP, and LCO have been found. Moreover, the most effective recycling processes lower the environmental impact by over 50% compared to the average of those evaluated. Also, the ultimate comparison between different cathode active materials shows that LFP recycling has a lower environmental impact than NMC and LCO, considering specific capacity and lifespan.