Sustainable Lithium Recovery from Spent LiFePO4 Cathode via K2S2O8 -Assisted Solid State Oxidation Through Mechanochemistry

Key Points

• This research aims to develop an efficient method for lithium recovery from spent LiFePO4 cathodes using mechanochemistry.
• Utilized potassium persulfate for lithium extraction.
• Employed a mechanochemical process at 600 rpm.
• Conducted experiments to optimize the extraction time.
• Achieved nearly complete lithium recovery of ~99.6%.
• Extraction process completed within 30 minutes.