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| High-Efficiency Separation of Spent Lithium Iron Phosphate Cathode Material and Current Collector based on Ozonation |
| Received:July 05, 2024 Revised:July 23, 2024 |
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| DOI：doi：10.20237/j.issn.1007-7545.2025.01.016 |
| KeyWord:Spent lithium iron phosphate; Active material separation; ozone oxidation; environmental protection. |
| Author | Institution |
| LI Shuai-bo |
合肥大学 |
| Chen Yinghao |
合肥大学 |
| Liu Xingyu |
合肥大学 |
| Sheng Boyu |
合肥大学 |
| Jiang Longjin |
安徽超越环保科技股份有限公司 |
| Hu Lei |
合肥大学 |
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| Abstract: |
| ABSTRACT：In this comprehensive study, we conducted a rigorous comparison and evaluation of the synergistic effects between acid solution and ozone for p the separation of positive active materials. Our research unveiled that the infusion of a specific concentration of ozone fortuitously prompts the generation of H2O2, a rather potent oxidizer. This reactive species subsequently interacts with the fluorine moieties present within the polyvinylidene fluoride (PVDF) structure, forming hydrogen fluoride (HF) compounds, thus reducing their inherent adherence to PVDF. Consequently, it magnifies the efficacy of active material separation. Comparatively, this novel ozonation methodology is more secu re, eco-friendly, and user-friendly than traditional recycling techniques, offering a substantial reduction in cost expenditure. |
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