Multiple components synergistic separation and high-efficiency lithium extraction from spent lithium ion battery

IF 6.9 2区环境科学与生态学 Q1 ENGINEERING, CHEMICAL

Process Safety and Environmental Protection Pub Date : 2025-03-19 DOI:10.1016/j.psep.2025.107038

Xue Yuan , Tao Jiang , Chenlong Duan , Yaqun He , Haifeng Wang , Guangwen Zhang

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引用次数: 0

Abstract

Recycling of valuable metals from spent lithium-ion battery is a significant work from the viewpoint of resource recycling and environmental protection. High-efficiency liberation of cathode materials and lithium extraction is a key point to improve the recycling efficiency. A novel recycling flowchart of organic pyrolysis combined with in-situ thermal-reduction of spent cathode material has been proposed in this study, which realizes the synergistic separation of multiple components and the in-situ reduction of spent LiNi_0.5Co_0.2Mn_0.3O₂ material. The reduction mechanism of electrode materials was revealed by test analysis, which indicates organic binders paly the most important role in the thermal-reduction of spent ternary cathode material. After organic pyrolysis, electrode material dissociation combined with selective lithium extraction was realized by water impact crushing. The liberation efficiency of cathode material is up to 98.56 % while 40.80 % of lithium can be simultaneously extracted in the water impact crushing process. Afterwards, thermal reduction with only 10 % carbon as reductant can recycle another 54.93 % lithium. The comprehensive recycling efficiency of lithium is up to 95.73 % in this study, which is significantly higher than that of direct carbon thermal reduction roasting. This study provides a novel recycling flowchart of spent lithium-ion battery.

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来源期刊

Process Safety and Environmental Protection 环境科学-工程：化工

CiteScore

11.40

自引率

15.40%

发文量

929

审稿时长

8.0 months

期刊介绍： The Process Safety and Environmental Protection (PSEP) journal is a leading international publication that focuses on the publication of high-quality, original research papers in the field of engineering, specifically those related to the safety of industrial processes and environmental protection. The journal encourages submissions that present new developments in safety and environmental aspects, particularly those that show how research findings can be applied in process engineering design and practice. PSEP is particularly interested in research that brings fresh perspectives to established engineering principles, identifies unsolved problems, or suggests directions for future research. The journal also values contributions that push the boundaries of traditional engineering and welcomes multidisciplinary papers. PSEP's articles are abstracted and indexed by a range of databases and services, which helps to ensure that the journal's research is accessible and recognized in the academic and professional communities. These databases include ANTE, Chemical Abstracts, Chemical Hazards in Industry, Current Contents, Elsevier Engineering Information database, Pascal Francis, Web of Science, Scopus, Engineering Information Database EnCompass LIT (Elsevier), and INSPEC. This wide coverage facilitates the dissemination of the journal's content to a global audience interested in process safety and environmental engineering.