A Patent Landscape Analysis on the Recycling of Lithium-Ion Battery Positive Electrode Materials: Trends, Technologies, and the Future

Batteries, Год журнала: 2025, Номер 11(3), С. 110 - 110

Опубликована: Март 14, 2025

The massive production and utilization of lithium-ion batteries (LIBs) has intensified concerns about raw material shortage end-of-life battery management. development effective recycling/reusing strategies, especially for the valuable active positive electrode materials, attracted much interest from both academia industry. This study presents a comprehensive patent analysis on recycling technologies spent LIBs. We screened examined 672 filings associated with 367 application families, covering period 1994 to 2024. reveals an explosive growth in patenting activity since 2020, China United States leading geographical coverage. Hydrometallurgy continues as most patented technology, followed by direct regeneration, separation, pyrometallurgy. Key innovations focus improving leaching efficiency, developing novel purification methods, exploring various relithiation strategies. also highlights significant involvement companies academic institutions driving innovation. Our findings provide insights into technological landscape, identify emerging trends, lead discussion potential future developments LIB recycling. serves resource researchers, industry stakeholders, policymakers working towards sustainable energy storage solutions circular economy strategies sector.

Язык: Английский

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Efficient Regeneration of Spent Lithium Iron Phosphate Cathodes Materials via Oxidation‐Reduction for Industrial‐Scale Recycling

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 15, 2025

Abstract Recycling spent lithium iron phosphate (LFP) batteries is crucial for resource conservation and environmental sustainability. However, the heterogeneous nature of LFP materials presents challenges universal recycling solutions. This work proposes an oxidation‐reduction process to regenerate cathode materials, reconstructing their lattice structure through high‐energy sanding spray drying. The regenerated exhibits uniform elemental distribution, regular spherical morphology, excellent electrochemical performance. initial capacity 144.9 mAh g −1 at 1C with 98% retention after 400 cycles. Additionally, material maintains 135.4 2C, 97% Density functional theory (DFT) calculations confirm that removing Fe 2+ defects enhances Li + diffusion, improving Compared traditional hydrometallurgical pyrometallurgical methods, low‐cost, less polluting, offers a profit 2.45 $ kg . method enables large‐scale, homogeneous while maintaining high not only provides in‐depth study reconstruction but also novel strategy on industrial scale.

Язык: Английский

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Efficient synergetic recycling of spent Lithium-ion batteries and waste biomass based on segregated reduction roasting strategy

Separation and Purification Technology, Год журнала: 2025, Номер 373, С. 133648 - 133648

Опубликована: Май 20, 2025

Язык: Английский

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Preferential lithium extraction and simultaneous ternary cathode precursor synthesis from spent lithium-Ion batteries using a spray pyrolysis-based process

Separation and Purification Technology, Год журнала: 2024, Номер 353, С. 128486 - 128486

Опубликована: Июнь 18, 2024

Язык: Английский

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In-situ repair of failed LiFePO4 cathode using residual Li- and C-containing impurities from active material separation process

Chemical Engineering Journal, Год журнала: 2024, Номер 497, С. 154922 - 154922

Опубликована: Авг. 23, 2024

Язык: Английский

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Sustainable and efficient recycling strategies for spent lithium iron phosphate batteries: Current status and prospect

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130885 - 130885

Опубликована: Дек. 1, 2024

Язык: Английский

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Passivation Mechanism-Driven Selective Leaching for Recycling Spent Lifepo4 Lithium-Ion Batteries

Опубликована: Янв. 1, 2025

Development of simple hydrometallurgy strategies for recovering cathode materials in spent LiFePO4 (LFP) batteries is highly desired, but the removal impurity metal components remains a complex and challenging task. Herein, we proposed passivation-driven mechanism high-selective leaching an Al(OH)3 template self-dissolution hydrothermal method regenerating hollow-structure LFP materials. Experimentally, 99.0% Li 98.7% Fe can be leached out while only 4.0% Al from electrode sheets under ambient temperature within 1.5 h, passivation layer, made up original Al2O3, ester AlF3, formed on foil after contact with citric acid, which inhibits corrosion Al. Through treatment, leachate regenerate to particles based that element transformed precipitation into soluble AlO2− as pH value increases reactants being consumed. After short annealing, regenerated delivers excellent capacity 153.3 mAh g−1 at 0.1 C retention rate 91.6% 2 100 cycles. This work simplifies process removing impurities achieves simultaneous recycling foil.

Язык: Английский

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Advances and challenges in recycling spent LiFePO4 batteries

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131780 - 131780

Опубликована: Янв. 1, 2025

Язык: Английский

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Oxidation Pressure Leaching of Lithium Iron Phosphate: Kinetic Aspects, Leaching Mechanism, and the Behavior of Lithium and Iron

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115658 - 115658

Опубликована: Янв. 1, 2025

Язык: Английский

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Selective recovery of lithium from spent LiFePO4 batteries based on PMS advanced oxidation process.

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 115735 - 115735

Опубликована: Фев. 1, 2025

Язык: Английский

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