Resource Recovery and Synthesis of Battery-Grade FePO4 from Waste LiFePO4 Battery Slag DOI Creative Commons

Puliang Li,

Yang Wang,

Liying Zhu

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1829 - 1829

Published: April 4, 2025

The effective recovery of valuable materials from spent LiFePO4 batteries is crucial for resource sustainability and environmental protection. This study investigates the phosphorus iron slag waste batteries, focusing on dissolution impurity removal processes to produce battery-grade phosphate. Using high-temperature-activated dissolution, followed by precipitation/dissolution removal, we optimize conditions ensure high rates (up 98.8% FePO4 under optimized conditions) product purity. Our findings demonstrate that proposed method effectively transforms into phosphate, significantly reducing raw material costs contributing sustainable battery recycling practices. regenerated cathode exhibits excellent electrochemical performance, achieving a discharge capacity 160.7 mAh g−1 at 0.1 C, which meets market standard levels. research provides solid foundation enhancing utilization advancing circular economy principles in industry.

Language: Английский

Resource Recovery and Synthesis of Battery-Grade FePO4 from Waste LiFePO4 Battery Slag DOI Creative Commons

Puliang Li,

Yang Wang,

Liying Zhu

et al.

Energies, Journal Year: 2025, Volume and Issue: 18(7), P. 1829 - 1829

Published: April 4, 2025

The effective recovery of valuable materials from spent LiFePO4 batteries is crucial for resource sustainability and environmental protection. This study investigates the phosphorus iron slag waste batteries, focusing on dissolution impurity removal processes to produce battery-grade phosphate. Using high-temperature-activated dissolution, followed by precipitation/dissolution removal, we optimize conditions ensure high rates (up 98.8% FePO4 under optimized conditions) product purity. Our findings demonstrate that proposed method effectively transforms into phosphate, significantly reducing raw material costs contributing sustainable battery recycling practices. regenerated cathode exhibits excellent electrochemical performance, achieving a discharge capacity 160.7 mAh g−1 at 0.1 C, which meets market standard levels. research provides solid foundation enhancing utilization advancing circular economy principles in industry.

Language: Английский

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