A Separator with Double Coatings of Li₄Ti₅O₁₂and Conductive Carbon for Li‐S Battery of Good Electrochemical Performance

Advanced Science, Journal Year: 2023, Volume and Issue: 10(22)

Published: May 18, 2023

The market demand for energy pushes researchers to pay a lot of attention Li-S batteries. However, the 'shuttle effect', corrosion lithium anodes, and formation dendrites make poor cycling performances (especially under high current densities sulfur loading) batteries, which limit their commercial applications. Here, separator is prepared modified with Super P LTO (abbreviation SPLTOPD) through simple coating method. can improve transport ability Li+ cations, reduce charge transfer resistance. SPLTOPD effectively barrier pass-through polysulfides, catalyze reactions polysulfides into S2- , increase ionic conductivity also prevent aggregation insulating species on surface cathode. assembled batteries cycle 870 cycles at 5 C capacity attenuation 0.066% per cycle. When loading up 7.6 mg cm-2 specific discharge 0.2 reach 839 mAh g-1 anode after 100 does not show existence or layer. This work provides an effective way preparation separators

Language: Английский

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Recent Progress in PEG-Based Composite Phase Change Materials

Polymer Reviews, Journal Year: 2023, Volume and Issue: 63(4), P. 1078 - 1129

Published: June 7, 2023

This review discusses advances in polyethylene glycol-based composite phase change materials (PCMs) for thermal energy storage (TES) and regulation. PCMs utilize latent heat storage, absorbing releasing during transitions within specific temperature ranges. Polyethylene glycol (PEG) is a promising organic PCM due to its easily tunable temperatures, high melting/freezing enthalpies, nontoxicity, among other advantages. However, PEG suffers from low conductivity requires encapsulation contain the flow of liquified PEG. To address these issues, has been composited with thermally conductive fillers porous materials. Moreover, modified have enhanced photothermal conversion efficiency, decreased supercooling, flame resistance. exemplary developments PEG-based PCMs, focusing on blending different polymers, doping various carbon (porous carbons, graphene, nanotubes), embedding into silica-based skeletons, synergizing hosts additives like layered doubled hydroxides, MXenes, metal-organic frameworks. work highlights key studies focused implementing building, pavement, electronic, textile, solar, waste recovery applications. The consequences synthesis parameters their effects PCM's transition properties are emphasized results.

Language: Английский

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Recent advances and strategies of metal phosphides for accelerating polysulfide redox and regulating Li plating

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 510, P. 215836 - 215836

Published: April 12, 2024

Language: Английский

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Upcycling Spent Cathode Materials to Bifunctional Catalysts for High‐Stability Lithium–Sulfur Batteries

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(29)

Published: April 13, 2024

Abstract In order to enhance the sluggish kinetics and suppress polysulfide shuttle effect in high‐loading lithium–sulfur (Li–S) batteries, it is crucial design synthesize catalysts exhibiting both high conversion rate strong anchoring toward species. Herein, based on theoretical predictions, spent cathode materials (LiCoO 2 LiMn O 4 ) from lithium‐ion batteries are converted into a bifunctional catalyst (Co─MnO) for Li–S through high‐temperature shock method. Owing synergistic catalytic of species exhibit by Co─MnO, superior electrochemical performance, including excellent performance (707 mAh g −1 at 4C) stability (capacity fading 0.058% per cycle over 400 cycles 1C) can be delivered under low areal loading (<0.5 wt%). This work not only offers new strategy catalysts, but also proposes promising approach transform LIBs highly efficient catalysts.

Language: Английский

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A decade of development in cathode-facing surface modified separators for high-performance Li-S batteries

Energy storage materials, Journal Year: 2024, Volume and Issue: 72, P. 103682 - 103682

Published: July 31, 2024

Language: Английский

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An interpenetrated protein-polar polymer interlayer for suppressing shuttle effect in Li-S batteries

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 630, P. 236145 - 236145

Published: Jan. 2, 2025

Language: Английский

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Black phosphorous nanosheets@CNTs hybrid composite for boosting conversion of polysulfides in lithium sulfur batteries

Electrochimica Acta, Journal Year: 2025, Volume and Issue: unknown, P. 145762 - 145762

Published: Jan. 1, 2025

Language: Английский

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Constructing MoS2-SnS heterostructures on N-doped carbon nanosheets for enhanced catalytic conversion of polysulfides in lithium-sulfur batteries

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 475, P. 146009 - 146009

Published: Sept. 19, 2023

Language: Английский

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In-situ grown Ti3C2T @CoSe2 heterostructure as trapping-electrocatalyst for accelerating polysulfides conversion in lithium-sulfur battery

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 474, P. 145862 - 145862

Published: Sept. 4, 2023

Language: Английский

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Lithium sulfonate-rich MOF modified separator enables high performance lithium–sulfur batteries

Journal of Alloys and Compounds, Journal Year: 2023, Volume and Issue: 965, P. 171389 - 171389

Published: July 17, 2023

Language: Английский

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