Surface reconstruction strategy enables rapid upcycling highly degraded layered cathode

Nano Energy, Год журнала: 2025, Номер 136, С. 110741 - 110741

Опубликована: Фев. 1, 2025

Язык: Английский

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Efficient and Scalable Direct Regeneration of Spent Layered Cathode Materials via Advanced Oxidation

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 13, 2025

Abstract Among direct recycling methods for spent lithium‐ion batteries, solid‐state regeneration is the route with minimal bottlenecks industrial application and highly compatible current cathode materials production processes. However, surface structure degradation interfacial impurities of cathodes significantly hinder Li + replenishment during restoration. Herein, we propose a unique advanced oxidation strategy that leverages inherent catalytic activity layered to address these challenges. This decomposes H 2 O generate •OH •O − free radicals, facilitating reactions cathode. As result, this approach effectively elevates Ni valence state, modifies microstructure, eliminates fluorine‐containing interface impurities, thereby promoting process. The regenerated LiNi 0.83 Co 0.12 Mn 0.05 demonstrate specific capacity 206 mAh g −1 at 0.1 C, comparable commercially available cathodes. Meanwhile, proves adaptable scalable treating dismantled 0.5 0.2 0.3 black mass. A 3.1 Ah pouch cell assembled exhibits impressive retention 74% after 500 cycles. Additionally, techno‐economic analysis reveals possesses low energy consumption, environmental footprint, high economic viability, suggesting its suitability battery industry.

Язык: Английский

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Cost‐Effective and Scalable Approach for the Separation and Direct Cathode Recovery from End‐of‐Life Li‐Ion Batteries

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 16, 2025

Abstract Li‐ion battery recycling presents a promising opportunity to decrease dependence on foreign sources of materials and harvest precious within the United States. Herein, superior complete direct process individual end‐of‐life cells is reported where recovered high‐purity cathode active material, as well electrolyte salt Li hexafluorophosphate (LiPF 6 ) can be reused without significant processing. This new utilizes series mechanical separation steps that enable anode while they are still attached their current collectors. Using this type significantly reduce metal contamination clean directly recycled. The if implemented commercially greatly environmental burden batteries greenhouse gas emissions 8.25 kg CO 2 e −1 from 64% lower compared those virgin production material. During electrochemical testing LiNi 0.6 Mn 0.2 Co O discharge capacity ≈160 mAh g good cyclability over 250 cycles at 0.33C achieved. success paves pathway explore optimize existing procedures.

Язык: Английский

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Interfacial MXene engineering enabled lamellar lithium nucleation for dendrite-free lithium anodes

Journal of Power Sources, Год журнала: 2025, Номер 633, С. 236451 - 236451

Опубликована: Фев. 4, 2025

Язык: Английский

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A systematic review of efficient recycling for the cathode materials of spent lithium-ion batteries: process intensification technologies beyond traditional methods

Green Chemistry, Год журнала: 2023, Номер 26(3), С. 1170 - 1193

Опубликована: Дек. 12, 2023

With the consequent retirement of lithium-ion batteries (LIBs), there has been an upsurge in spent LIBs, posing significant challenges to energy, resources, and environment, which led necessity recycle LIBs.

Язык: Английский

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Recycling spent lithium-ion battery cathode: an overview

Green Chemistry, Год журнала: 2024, Номер 26(13), С. 7656 - 7717

Опубликована: Янв. 1, 2024

This review introduces the structure and failure mechanism of lithium-ion batteries, followed by a systematic summary recycling techniques, including direct, hydrometallurgical, pyrometallurgical recovery.

Язык: Английский

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A mild and efficient closed-loop recycling strategy for spent lithium-ion battery

Journal of Hazardous Materials, Год журнала: 2024, Номер 474, С. 134794 - 134794

Опубликована: Июнь 2, 2024

Язык: Английский

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Atomistic observation and transient reordering of antisite Li/Fe defects toward sustainable LiFePO₄

Energy & Environmental Science, Год журнала: 2024, Номер 17(20), С. 7749 - 7761

Опубликована: Янв. 1, 2024

We introduce the atomistic observation and high-temperature shock to trigger Li–Fe reordering in LiFePO 4 , which offers a precise efficient pathway for direct recycling regeneration, along with significant techno-economic benefits.

Язык: Английский

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Advanced K3V2(PO4)2O2F cathode for rechargeable potassium-ion batteries with high energy density

Applied Physics Letters, Год журнала: 2024, Номер 124(18)

Опубликована: Апрель 29, 2024

Potassium-ion batteries (PIBs) have emerged as promising candidates for cost-effective and sustainable energy-storage systems. Nevertheless, limited by the large K+ radius, PIBs great difficulty in figuring out designing suitable host materials. Herein, a cathode material K3V2(PO4)2O2F (KVPOF) has been carefully prepared. It exhibits high specific capacity close to theoretical value, 116.3 mAh/g at 20 mA/g within voltage window of 2.0–4.5 V vs K+/K, corresponding de-/intercalation process ∼2 mol per formula unit. In addition, it presents an average operating plateau about 3.5 V, resulting energy density 410 Wh/kg. The crystal structure phase transition are revealed situ x-ray diffraction, is found be fully reversible during K+. Furthermore, potential KVPOF applications low temperatures was explored, full cell matched with graphite anode demonstrated fair electrochemical performance. experimental results suggest feasibility using rechargeable PIBs.

Язык: Английский

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Direct lithium extraction from spent batteries for efficient lithium recycling

Science Bulletin, Год журнала: 2024, Номер 69(11), С. 1697 - 1705

Опубликована: Фев. 27, 2024

Язык: Английский

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