Novel Upcycling of Mixed Spent Cathodes Toward High Energy Density LiMn_xFe_1−XPO₄ Cathode Material

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Abstract Sustainable recycling of lithium‐ion batteries (LIBs) is essential for resource conservation and supporting the development renewable energy. However, conventional approaches face significant challenges due to mismatch between limited energy density regenerated increasing demand high‐performance LIBs, necessitating a shift toward upcycling strategies. Herein, an innovative strategy demonstrated that transforms mixed spent LiFePO 4 (LFP) LiMn 2 O cathodes into cathode materials. Through advanced methodologies reaction pathway control rational design metal coordination complexes, are recovered converted solid solution characterized by homogeneously distributed manganese iron elements. The 0.6 Fe 0.4 PO material, fabricated using this as precursor, delivers remarkable discharge capacity 160.7 mA g −1 at 0.2C retains impressive 93.1% retention after 500 cycles 1C. (3.85 V vs Li + /Li 558.9 Wh kg ) achieves voltage increase 0.49 19.7% enhancement in compared commercial LFP (3.36 466.8 ). This offers sustainable both production high

Language: Английский

Recovery of fluorine-containing resources from spent lithium-ion batteries as high-value products

Resources Conservation and Recycling, Journal Year: 2025, Volume and Issue: 221, P. 108403 - 108403

Published: May 28, 2025

Language: Английский