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近年来，我国新能源汽车及储能领域快速发展，磷酸铁锂电池使用量井喷式上升。在未来会产生大量退役磷酸铁锂电池，对其进行回收不仅可以缓解国内锂资源紧缺的问题也能减少含氟电解液带来的环境污染。回顾了近年来国内外退役磷酸铁锂电池回收技术，包括电池预处理、磷酸铁锂正极废料修复、全浸出回收、选择性提锂及提锂尾渣的回收等，总结归纳了各技术最新的研究成果，从工艺的经济性、回收率、环境影响等方面，对各个工艺的优缺点进行分析，并展望了未来退役磷酸铁锂电池回收技术的发展方向。
Abstract：In recent years, the new energy vehicles and energy storage fields develop rapidly in China.The usage of lithium iron phosphate battery rises sharply.In the future, a large number of retired lithium iron phosphate batteries will be generated, the recycling of which will not only alleviate the problem of lithium resource shortage in China but also reduce the environmental pollution caused by fluorinated electrolyte.The research on recycling of retired lithium iron phosphate batteries in recent years was reviewed, including lithium battery pretreatment, repair technologies for spent lithium iron phosphate cathode material, hydrometallurgical recovery, selective lithium extraction method, and recovery of lithium extraction tailing, etc.The latest research results of each technology were summarized.The advantages and disadvantages of each process were analyzed from the aspects of economics of the process, recovery rate and environmental impact and other aspects.The future development direction of recycling technology of retired lithium iron phosphate batteries was prospected.
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基本信息:
中图分类号:X705
引用信息:
[1]王猛,张家靓,陈永强,等.退役磷酸铁锂电池回收技术综述[J].有色金属(冶炼部分),2023(05):100-110.
基金信息:
国家重点研发计划青年科学家项目(2022YFC2906000); 国家自然科学基金资助项目(51834008)
2023-05-06
2023-05-06