湿法冶金2026，Vol.45Issue(3)：317-323,7.DOI:10.13355/j.cnki.sfyj.2026.03.006
丁二酸与过氧化氢协同作用在废旧磷酸铁锂电池回收中的应用研究
Application of Synergistic Effect of Succinic Acid and Hydrogen Peroxide in Recycling of Spent Lithium Iron Phosphate Batteries
摘要
Abstract
Recycling spent LiFePO4 batteries is crucial for mitigating resource shortages and lowering environmental pollution.Leaching lithium from the spent LiFePO4 batteries using succinic acid-hydrogen peroxide system was investigated.The effects of succinic acid concentration,hydrogen peroxide volume fraction,solid mass to liquid volume ratio,leaching temperature and time on lithium leaching rate were examined.The leaching mechanism was further clarified through kinetic analysis and SEM.The results indicate that under the optimal leaching conditions of succinic acid of 0.8 mol/L,hydrogen peroxide of 2％,solid mass to liquid volume ratio of 4 mg/1 mL,leaching temperature of 80℃,and time of 40 min,the conditions,lithium leaching rate is more than 98％,while iron leaching rate is less than 2％.Kinetic analysis reveals that the leaching process is primarily diffusion-controlled.Overall,these findings demonstrate that the synergistic succinic acid-hydrogen peroxide system offers high efficiency and sustainability in LiFePO4 leaching,providing a feasible route for the green recycling of spent LiFePO4 batteries.关键词
丁二酸/过氧化氢/有机酸/废旧锂电池/磷酸铁锂/浸出/锂Key words
succinic acid/hydrogen peroxide/organic acid/spent lithium batteries/LiFePO4/leaching/lithium分类
矿业与冶金引用本文复制引用
杨鹏飞,梁慧辰,陆万里,叶有明,谢雪珍,陈燕萌,王小淑..丁二酸与过氧化氢协同作用在废旧磷酸铁锂电池回收中的应用研究[J].湿法冶金,2026,45(3):317-323,7.基金项目
2025年广西高校中青年教师科研基础能力提升项目(2025KY0904) （2025KY0904）
2025年度广西科技师范学院创新团队(GXKS2025QNTD15) （GXKS2025QNTD15）
冶炼危废渣稀散金属高值化利用重点实验室(GXKSKYPT2025014) （GXKSKYPT2025014）
广西科技师范学院青年基金项目(GXKS2025ZD021) （GXKS2025ZD021）
2024年度广西科技师范学院校级创团队(GXKS2024QNTD12). （GXKS2024QNTD12）
