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With the widespread use and limited lifespan of lithium iron phosphateLithium iron phosphate (LFP) batteriesBattery, the generation of waste batteriesBattery is significantly increasing, posing environmental hazards and risks of accidents such as leakage, thermal runaway, explosions, and fires. RecyclingRecycling these batteriesBattery is crucial for reducing these risks and recovering valuable resources, especially lithiumLithium, which is the most valuable component of LFP batteriesBattery. Currently, the overall lithium recoveryLithium recovery rate from LFP batteriesBattery is less than 1%, highlighting the urgent need to improve recyclingRecycling technologies. Selective leachingSelective leaching, as a green, simple, cost-effective, and sustainable method, has garnered widespread attention. This paper reviews the research progress of various selective leachingSelective leaching methods and categorizes them into five types based on their characteristics: chemical selective leachingSelective leaching, electrochemical selective leachingSelective leaching, bio-selective leachingSelective leaching, leachingLeaching-precipitation, and direct extraction. It also introduces their reaction mechanisms, raw materialsRaw materials, operational processes, environmental impactEnvironmental impact, advantages, and limitations, evaluating their feasibility individually. Furthermore, the unique advantages of selective leachingSelective leaching are summarized, emphasizing its promising prospects in LFP battery recyclingBattery recycling.

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Reviews and Perspectives: Selective Leaching—A Promising Approach for Recycling Lithium Iron Phosphate Batteries

  • 会议论文

  • 发表日期：

    2025年

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  • Tianyu Zhao,
  • Yeonuk Choi

摘要

With the widespread use and limited lifespan of lithium iron phosphateLithium iron phosphate (LFP) batteriesBattery, the generation of waste batteriesBattery is significantly increasing, posing environmental hazards and risks of accidents such as leakage, thermal runaway, explosions, and fires. RecyclingRecycling these batteriesBattery is crucial for reducing these risks and recovering valuable resources, especially lithiumLithium, which is the most valuable component of LFP batteriesBattery. Currently, the overall lithium recoveryLithium recovery rate from LFP batteriesBattery is less than 1%, highlighting the urgent need to improve recyclingRecycling technologies. Selective leachingSelective leaching, as a green, simple, cost-effective, and sustainable method, has garnered widespread attention. This paper reviews the research progress of various selective leachingSelective leaching methods and categorizes them into five types based on their characteristics: chemical selective leachingSelective leaching, electrochemical selective leachingSelective leaching, bio-selective leachingSelective leaching, leachingLeaching-precipitation, and direct extraction. It also introduces their reaction mechanisms, raw materialsRaw materials, operational processes, environmental impactEnvironmental impact, advantages, and limitations, evaluating their feasibility individually. Furthermore, the unique advantages of selective leachingSelective leaching are summarized, emphasizing its promising prospects in LFP battery recyclingBattery recycling.