Work

Lithium Iron Phosphate Battery Regeneration and Recycling: Techniques and Efficiency

Year: 2025

Type: article

Abstract: This study investigates advanced strategies for r regenerating and recycling lithium iron phosphate (LiFePO4, LFP) materials from spent lithium-ion batteries. Recovery techniques are categorized into direct regeneration, which restores positive electrode materials with high electrochemical performance, and recycling, which produces intermediate compounds such as lithium carbonate and iron phosphate. Additionally, resynthesis methods are explored to convert recovered precursors into high-quality LFP materials, ensuring their reuse in battery production. Innovative approaches, including carbothermic reduction, doping, and hydrothermal resynthesis, are highlighted for their ability to enhance material properties, improve energy efficiency, and maintain the olivine structure of LFP. Key advancements include the use of eco-friendly reagents, automation, and optimization strategies to reduce environmental impacts and costs. Regenerated and resynthesized positive electrodes demonstrated performance metrics comparable to or exceeding commercial LFP, showcasing their potential for widespread application. This work underscores the importance of closed-loop recycling systems and identifies pathways for scaling, improving economic feasibility, and minimizing the ecological footprint of the lithium-ion battery lifecycle.

Source: Batteries

DOI: 10.3390/batteries11040136

Authors: Alexandra Kosenko, Antonina Bolotova, Konstantin Pushnitsa, Pavel Novikov, Anatoliy A. Popovich

Institution: Peter the Great St. Petersburg Polytechnic University

Language: English

Topic: Extraction and Separation Processes

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Affordable and clean energy

Open Access status: gold

Estimated APC paid: $3,258