Sustainable upcycling of mixed spent cathodes to a high-voltage polyanionic cathode material

Nature Communications, Год журнала: 2024, Номер 15(1)

Опубликована: Май 14, 2024

Abstract Sustainable battery recycling is essential for achieving resource conservation and alleviating environmental issues. Many open/closed-loop strategies critical metal or direct recovery aim at a single component, the reuse of mixed cathode materials significant challenge. To address this barrier, here we propose an upcycling strategy spent LiFePO 4 Mn-rich cathodes by structural design transition replacement, which uses green deep eutectic solvent to regenerate high-voltage polyanionic material. This process ensures complete all elements in can be reused. The regenerated LiFe 0.5 Mn PO has increased mean voltage (3.68 V versus Li/Li + ) energy density (559 Wh kg –1 compared with commercial (3.38 524 ). proposed expand gram-grade scale was also applicable recovery, thus closed-loop between next generation materials. Techno-economic analysis shows that potentially high economic benefits, while providing sustainable approach value-added utilization waste

Язык: Английский

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Machine learning models accelerate deep eutectic solvent discovery for the recycling of lithium-ion battery cathodes

Green Chemistry, Год журнала: 2024, Номер 26(13), С. 7857 - 7868

Опубликована: Янв. 1, 2024

Deep learning model Conditional Generative Adversarial Network (CGAN) was used to design deep eutectic solvent (DES) based green process for lithium-ion cathode recycling, and the importance of acidity, coordination, reducibility were quantified.

Язык: Английский

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Toward Sustainable Lithium Iron Phosphate in Lithium‐Ion Batteries: Regeneration Strategies and Their Challenges

Advanced Functional Materials, Год журнала: 2024, Номер 34(44)

Опубликована: Май 20, 2024

Abstract In recent years, the penetration rate of lithium iron phosphate batteries in energy storage field has surged, underscoring pressing need to recycle retired LiFePO 4 (LFP) within framework low carbon and sustainable development. This review first introduces economic benefits regenerating LFP power development history LFP, establish necessity recycling. Then, entire life cycle process failure mechanism are outlined. The focus is on highlighting advantages direct recycling technology for materials. Directly materials a very promising solution. spent (S‐LFP) can not only protect environment save resources, but also directly add atoms vacancies missing repair S‐LFP At same time, simply supplementing simplifies recovery improves benefits. status various methods then reviewed terms regeneration process, principles, advantages, challenges. Additionally, it noted that currently its early stages, there challenges alternative directions

Язык: Английский

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A review of direct recycling methods for spent lithium-ion batteries

Energy storage materials, Год журнала: 2024, Номер 70, С. 103475 - 103475

Опубликована: Май 17, 2024

Язык: Английский

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Toward Circular Energy: Exploring Direct Regeneration for Lithium‐Ion Battery Sustainability

Advanced Materials, Год журнала: 2024, Номер 36(32)

Опубликована: Май 25, 2024

Lithium-ion batteries (LIBs) are rapidly developing into attractive energy storage technologies. As LIBs gradually enter retirement, their sustainability is starting to come focus. The utilization of recycled spent as raw materials for battery manufacturing imperative resource and environmental sustainability. depends on the recycling process, whereby cycling must be maximized while minimizing waste emissions consumption. Although LIB technologies (hydrometallurgy pyrometallurgy) have been commercialized a large scale, they unavoidable limitations. They incompatible with circular economy principles because require toxic chemicals, emit hazardous substances, consume amounts energy. direct regeneration degraded electrode from viable alternative traditional nondestructive repair technology. Furthermore, offers advantages such maximization value materials, use sustainable, nontoxic reagents, high potential profitability, significant application potential. Therefore, this review aims investigate state-of-the-art that can extended large-scale applications.

Язык: Английский

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Challenges and perspectives towards direct regeneration of spent LiFePO4 cathode

Journal of Power Sources, Год журнала: 2024, Номер 602, С. 234365 - 234365

Опубликована: Март 21, 2024

Язык: Английский

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A review of contemporary and emerging recycling methods for lithium-ion batteries with a focus on NMC cathodes

Resources Conservation and Recycling, Год журнала: 2024, Номер 209, С. 107825 - 107825

Опубликована: Июль 24, 2024

Язык: Английский

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Closed‐Loop Direct Upcycling of Spent Ni‐Rich Layered Cathodes into High‐Voltage Cathode Materials

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Июль 15, 2024

Abstract Facing the resource and environmental pressures brought by retiring wave of lithium‐ion batteries (LIBs), direct recycling methods are considered to be next generation's solution. However, contradiction between limited battery life demand for rapidly iterating technology forces recovery paradigm shift toward “direct upcycling.” Herein, a closed‐loop upcycling strategy that converts waste current collector debris into dopants is proposed, highly inclusive eutectic molten salt system utilized repair structural defects in degraded polycrystalline LiNi 0.83 Co 0.12 Mn 0.05 O 2 cathodes while achieving single‐crystallization transformation introducing Al/Cu dual‐doping. Upcycled materials can effectively overcome two key challenges at high voltages: strain accumulation lattice oxygen evolution. It exhibits comprehensive electrochemical performance far superior commercial 4.6 V, especially its fast charging capability 15 C, an impressive 91.1% capacity retention after 200 cycles 1.2 Ah pouch cell. Importantly, this approach demonstrates broad applicability various spent layered cathodes, particularly showcasing value mixed cathodes. This work bridges gap management material enhancement, offering sustainable path LIBs production next‐generation high‐voltage

Язык: Английский

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Efficient Lithium Transport and Reversible Lithium Plating in Silicon Anodes: Synergistic Design of Porous Structure and LiF‐Rich SEI for Fast Charging

Advanced Functional Materials, Год журнала: 2024, Номер 34(33)

Опубликована: Март 5, 2024

Abstract Silicon (Si) anodes hold great promise for enhancing the energy density of lithium‐ion batteries (LIBs). However, issues such as slow intrinsic kinetics and unstable interfaces caused by significant volume changes hinder practical deployment Si anodes. Fast charging is desired Si‐related that worsen Li plating dead Li, making it essential to overcome these safe, reversible charging. Herein, a novel approach proposed combining structural design solid electrolyte interface (SEI) modulation enable efficient safe fast LIBs. 3D porous micro‐particles consisting nanosheets coated with pitch‐based carbon layer are successfully prepared. This provides enhanced ion transport pathways while maintaining material's rate performance tap density. Furthermore, designed localized high‐concentration (LHCE) exhibits lower + desolvation barrier leads formation LiF‐rich SEI, mitigating “tip effect” during charging, stability, demonstrating high Coulombic efficiency. Overall, this study highlights synergistic importance structure SEI regulation in LIB aiding developing superior, storage.

Язык: Английский

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The evolution of lithium-ion battery recycling

Опубликована: Янв. 15, 2025

Язык: Английский

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