Recycling of Lithium Iron Phosphate (LiFePO4) Batteries from the End Product Quality Perspective

Batteries, Journal Year: 2025, Volume and Issue: 11(1), P. 33 - 33

Published: Jan. 18, 2025

As efforts towards greener energy and mobility solutions are constantly increasing, so is the demand for lithium-ion batteries (LIBs). Their growing market implies an increasing generation of hazardous waste, which contains large amounts electrolyte, often corrosive flammable releases toxic gases, critical raw materials that indispensable to renewable sector, such as lithium. Therefore, it crucial end-of-life LIBs be recycled in a viable way avoid environmental pollution ensure reuse valuable would otherwise lost. Here, we present review recent developments field LIB recycling with LiFePO4 (LFP) chemistry, one fastest-growing fields, especially electromobility sector. Most methods developed not applied industrially due issues complexity, cost, or low quality product. This last issue rarely discussed literature, motivated creation this article, emphasis on positive electrode by direct method resynthesized LFP terms electrochemical performance.

Language: Английский

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Strategies for lithium metal anodes: Crafting protective layers through physical and chemical design

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236154 - 236154

Published: Jan. 5, 2025

Language: Английский

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Glue-assisted Exfoliation of Two-dimensional Sulfur-rich Niobium Thiophosphate (Nb4P2S21) for Sulfur-equivalent Electrode Study in Lithium Storage

Nanoscale Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Two-dimensional (2D) layered thiophosphates have garnered attention for advanced battery technology due to their open ionic diffusion channels, high capacity, and unique catalytic properties. However, potential in energy storage applications remains largely unexplored. In this study, we report a 2D transition metal thiophosphate (Nb4P2S21) with sulfur content, synthesized via chemical vapor transport (CVT). The bulk material, exhibiting quasi-one-dimensional (quasi-1D) structure, can be exfoliated into high-quality nanoplates using glue-assisted grinding. Density functional theory (DFT) calculations reveal direct bandgap of 1.64 eV (HSE06 method) Nb4P2S21, aligning its near-infrared (NIR) photoluminescence at 755 nm. Despite an initial discharge capacity 1500 mA h g-1, the material shows low reversible rapid decay 0-2.6 V. situ Raman confirms formation polysulfides during cycling. Given was evaluated 0.5-2.6 V, 1.0-2.6 1.5-2.6 V assess sulfur-equivalent cathode performance. carbonate-based electrolytes, electrochemical performance is hindered by polysulfide side reactions, but switching ether-based electrolytes improves coulombic efficiency additional Li x S conversion above 2.2 EDS TOF-SIMS analyses cycled electrodes show significant loss, worsening shuttle effect leading failure. Adapting strategies from lithium-sulfur batteries, such as polar host catalysts, could enhance material's

Language: Английский

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Efficient Organic Light‐Emitting Diodes Based on Ambipolar Doped Organic Single Crystals of Bis‐Styrylbenzene Derivatives

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

Published: Feb. 20, 2025

Abstract Ambipolar carrier transport in organic single crystals is essential to maximize exciton recombination and thus achieve high‐efficiency light‐emitting diodes (OLEDs). Herein, two bis‐styrylbenzene derivatives, 1,4‐bis(4‐methylstyryl)benzene (3PV‐Me) 1,4‐bis(4‐trifluoromethylstyryl)benzene (3PV‐CF 3 ), are introduced into the construction of ambipolar 3PV‐CF doped 3PV‐Me (3PV‐Me‐CF ) crystals. The same molecular skeleton these molecules endow them with similar shapes sublimation temperatures. Doping dopants evaluated for their effect on photophysical properties host crystal. Systematic spectroscopic investigations high‐resolution time‐of‐flight secondary ion mass spectrometry (TOF‐SIMS) depth profiling further conducted gain a deep insight doping details 3PV‐Me‐CF Furthermore, behavior by space‐charge‐limited current (SCLC) method, exhibiting nearly equal hole electron mobilities. These then utilized fabrication single‐crystal OLEDs, which demonstrated an almost sixfold enhancement electroluminescence (EL) efficiency comparison unipolar OLEDs. findings reveal great potential well‐balanced single‐crystalline semiconductors development high‐performance optoelectronic devices.

Language: Английский

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Harnessing Lithiophilic Hetero‐Interfacial Chemistry for Stable Lithium Metal Batteries with Low Negative/Positive Capacity Ratios

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: March 11, 2025

Abstract Lithium (Li) metal batteries hold great promise for next‐generation energy storage due to their high density. However, application is hindered by uncontrollable Li plating/stripping, leading limited cycle life, especially under practical conditions with a low negative/positive (N/P) capacity ratio. Here, it demonstrated that stable cycling of N/P ratio can be realized harnessing hetero‐interfacial redox chemistry regulate nucleation and deposition behavior. It shown replacing pure intercalated in graphite facilitates the formation an increasingly lithiophilic heterointerface upon discharge, which homogenizes during subsequent charge, resulting highly reversible plating/stripping minimal active loss lean conditions. This enables cells Li/graphite hybrid anode demonstrate remarkable improvements even as 0.4, compared those anode. strategy provides new insights into role constructing composite anodes high‐energy long‐cycling batteries.

Language: Английский

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Strategy utilizing lithiophilic gradients for dendrite-free lithium metal battery

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 161788 - 161788

Published: March 1, 2025

Language: Английский

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Expandable Bidirectional‐Gradient Current Collector for High‐Performance Li Metal Battery

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

Published: March 25, 2025

Abstract 3D porous current collectors (CCs) play a critical role in ensuring uniform lithium (Li) deposition and distributing density evenly across electrode surfaces. These attributes are essential for improving the safety stability of Li metal batteries. However, copper (Cu) ‐based CCs face notable drawbacks, such as rigid structures, insufficient pore volume, excessive mass, weak intrinsic lithiophilicity Li, which hinder their performance. To overcome these limitations, novel self‐assembly method is developed to construct highly expandable bidirectional‐gradient collector (EBG CC). This advanced design integrates Cu‐silver (Ag) ‐Cu nanowires offers high porosity, provides ample space deposition. The unique gradients conductivity within EBG CC enable nucleation, thereby stable efficient cycling Electrochemical testing half‐cell symmetric cell configurations demonstrated CC's superior rate capabilities long‐term capacity retention. Additionally, bidirectional pouch configured Li/EBG | LiFePO 4 delivered an impressive discharge 160.3 mAh g⁻¹ at 1C. results underline potential lightweight, porous, mitigating dendrite growth significantly enhancing performance anodes.

Language: Английский

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Fabrication and electrochemical performance evaluation of lithiophilic dual-interface layers for high-rate lithium metal batteries

Journal of Electroanalytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 119091 - 119091

Published: March 1, 2025

Language: Английский

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Direct epitaxial growth of MOF arrays on Cu foils to regulate Li deposition toward lean-lithium metal batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162370 - 162370

Published: April 1, 2025

Language: Английский

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Janus-structured lithium metal anodes: design strategies, mechanisms, and prospects for next-generation high-energy batteries

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162577 - 162577

Published: April 1, 2025

Language: Английский

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