An overview of recycling and treatment of spent LiFePO 4 batteries in China

摘要

Graphical abstractDisplay OmittedHighlights?The current status and environmental benefits of recycling LiFePO4batteries were presented, and the writer gives solutions to existing problems in battery recycling.?Several typical technologies for recycling spent LiFePO4batteries are evaluated.?The prospect of recycling technologies was suggested finally.AbstractThe number of spent LiFePO4batteries has increased with the rapid development of the electric vehicle industry in China. Recycling of spent LiFePO4batteries is important not only for the treatment of waste but also for the recovery of useful resources. However, the treatment of spent LiFePO4batteries is challenging because LiFePO4batteries do not contain any precious metals, treatment is complex using traditional recycling process, and the number of spent batteries recovered from the public has been very small recently. Therefore, it is necessary to summarize the existing problems and propose a proper recycling route for spent LiFePO4batteries.In this paper, the current status of spent LiFePO4batteries recycling in China is introduced, and the environmental benefits of recycling are analyzed. The state of the art in preprocessing of End-of-Life LiFePO4batteries and the final batteries recovery is discussed in detail. Based on the review, optimizing the recycling mode, increasing the precious metals recovery efficiency, and decreasing the chemical reagents consumption by effective materials liberation and separation are proposed as potential improvement strategies to make the recycling chain more environmentally friendly.]]>