Lithium Leaching–Induced Activation of Spent LFP Composites for Enhanced Water Oxidation with Concurrent Lithium Recovery

Key Points

• This research aims to enhance water oxidation processes by activating spent lithium iron phosphate composites through lithium leaching.
• Developed a catalyst using spent lithium iron phosphate composites (s LFP@NiO) for oxygen evolution reaction.
• Investigated the effects of lithium leaching on the catalytic performance.
• Analyzed water oxidation efficiency and lithium recovery mechanisms.
• Lithium leaching significantly enhanced the oxygen evolution reaction activity.
• The modified catalyst showed improved performance over untreated composites.
• Concurrent lithium recovery was successfully achieved during the process.