Research and Industrialization Status of Recycling of Waste Lithium Iron Phosphate Batteries
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摘要:
这是一篇材料工程领域的论文。随着近年来新能源行业的蓬勃发展,2030年我国退役磷酸铁锂动力电池规模或达153.1万t。出于保护我国战略性矿产资源和减少环境污染的需要,研究开发出绿色、高效、可持续的废旧磷酸铁锂电池回收工艺已刻不容缓。本文以废旧磷酸铁锂电池的主要组成部分及一般回收流程为研究对象,介绍了预处理、正极材料、负极材料、电解液等多种回收工艺的原理、优缺点及研究现状。在此基础上,对废旧磷酸铁锂电池回收的未来研究方向提出了自己的观点,以期为我国废旧磷酸铁锂电池回收技术的产业化发展提供参考。
Abstract:This is an essay in the field of material engineering. In recent years, the new energy has been growing fast than ever. Apparently, in the upcoming future, a large number of lithium iron phosphate batteries will be retired. Out of the need to protect China's strategic mineral resources and reduce environmental pollution, research and development of a green, efficient and sustainable recycling process of spent lithium iron phosphate batteries is urgent. This essay takes the main components and general recycling process of waste lithium iron phosphate battery as the research object and introduces the principle, advantages and disadvantages, and research status of various recovery processes such as pretreatment, cathode material, negative electrode material and electrolyte. On this basis, future perspectives of lithium iron phosphate battery recycling are presented, aiming to provide support for the industrialization and development of the spent lithium iron phosphate battery recycling technology in China.
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Key words:
- Material engineering /
- Lithium iron phosphate battery /
- Positive electrode /
- Negative electrode /
- Electrolyte /
- Pretreatment /
- Recycle
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图 1 典型浸出剂浸出性能评价(修改自参考文献[24])
Figure 1.
表 1 磷酸铁锂电池放电方法
Table 1. Discharging methods of spent lithium iron phosphate batteries
表 2 电解液主要富集分离方法的优缺点
Table 2. Main advantages and disadvantages of the methods for electrolyte enrichment and separation
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