Efficient Preparation of Battery-Grade Li₂CO₃ from Spent Battery Leachate via Integrated Solvent Extraction and Direct Precipitation

Key Points

• This research aims to develop a more efficient method for preparing battery-grade Li₂CO₃ from spent lithium-ion battery leachate.
• Integrated solvent extraction used for lithium separation.
• Direct precipitation method to produce high-purity lithium carbonate.
• Improved efficiency in lithium extraction compared to conventional methods.
• Reduced lithium loss during preparation processes.