Research progress on recycling technology of waste lithium iron phosphate power battery

doi:10.19799/j.cnki.2095-4239.2022.0201

Abstract

Abstract:

This study combines the results of domestic and foreign research on the recycling of used lithium iron phosphate power batteries recently. Furthermore, it provides a detailed review of the latest technology for recycling used lithium iron phosphate power batteries, including pretreatment processes, positive and negative electrode materials, and electrolyte recycling methods. This study also focuses on the recovery process of positive electrode material, including the acid leaching process and bioleaching technology in pyrometallurgy and hydrometallurgy, and direct regeneration technology. It introduces the recycling technology of negative electrodes and the supercritical CO₂ recovery process of electrolytes. The recent progress in the recovery and utilization of waste lithium iron phosphate power batteries is systematically summarized, and the existing problems in the recovery and utilization of waste lithium iron phosphate power batteries are analyzed. In the future, we will conduct in-depth research on the recycling process and its principle, develop a clean, environmental-friendly and simple recycling process, and adopt different recycling methods for different types of recycled materials. Thus, the high efficiency and high-quality recovery of all waste lithium iron phosphate power battery components can be realized.

Key words: waste lithium iron phosphate power battery, dismantling and recycling, cathode material, hydrometallurgy

CLC Number:

O 646.21

ZHOU Wei, FU Dongju, LIU Weifeng, CHEN Jianjun, HU Zhao, ZENG Xierong. Research progress on recycling technology of waste lithium iron phosphate power battery[J]. Energy Storage Science and Technology, 2022, 11(6): 1854-1864.

Figures/Tables 6

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