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A green chemistry hydrometallurgical process has been developed to recycle cathode material fromLithium-ion batteries lithium-ion batteriesBatteries and produce sodium-free Li2CO3 as well as mixed Co, Ni, Mn sulfates without generating either liquid or solid waste. The only reagents are formic acid and sulfuric acid. The key step in the process is leachingLeaching cathode materials (e.g., LiNi1/3Co1/3Mn1/3O2) with formic acid, which is accompanied by in situ crystallizationConcurrent leaching and crystallization of sparingly soluble Co, Mn, and Ni formate salts. In the present work, the kinetics of the leaching reaction are examined.

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Green Chemistry and Zero Liquid Discharge Process for Complete Recovery of Lithium, Cobalt, Manganese, and Nickel from Lithium-Ion Battery Cathodes

  • 会议论文

  • 发表日期：

    2025年

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  • Alexandru Sonoc,
  • Lan Van Leeuwen,
  • Farzaneh Sadri

摘要

A green chemistry hydrometallurgical process has been developed to recycle cathode material fromLithium-ion batteries lithium-ion batteriesBatteries and produce sodium-free Li2CO3 as well as mixed Co, Ni, Mn sulfates without generating either liquid or solid waste. The only reagents are formic acid and sulfuric acid. The key step in the process is leachingLeaching cathode materials (e.g., LiNi1/3Co1/3Mn1/3O2) with formic acid, which is accompanied by in situ crystallizationConcurrent leaching and crystallization of sparingly soluble Co, Mn, and Ni formate salts. In the present work, the kinetics of the leaching reaction are examined.