Self-healing behavior of superhard covalent bond materials

Chemical Society Reviews, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This review presents the classification and healing mechanisms of self-healing materials, with an emphasis on expounding latest progress challenges superhard materials.

Language: Английский

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Conductive Polymer-Based Electrodes and Supercapacitors: Materials, Electrolytes, and Characterizations

Materials, Journal Year: 2024, Volume and Issue: 17(16), P. 4126 - 4126

Published: Aug. 20, 2024

New materials and the interactions between them are basis of novel energy storage devices such as supercapacitors batteries. In recent years, because increasing demand for electricity an source, development new is among most actively studied topics. Conductive polymers (CPs), their intrinsic electrochemical activity electrical conductivity, have also been intensively explored. While high capacitance reported in literature comes from hybrid materials, example, conductive composed metal oxides carbon graphene nanotubes, chemistry 3D structure remain critical. This comprehensive review focuses on basic properties three popular composites with that explored i.e., polypyrrole (PPy), polyaniline (PANi), polythiophene (PTh), various types electrolytes, including aqueous, organic, quasi-solid, self-healing electrolytes. Important experimental parameters affecting material property morphology discussed. Electrochemical analytical techniques frequently employed supercapacitor research presented. particular, cyclic voltammetry (CV) impedance spectroscopy (EIS) discussed detail, how to extract data spectra calculate key parameters. Pros cons CP-based together potential applications.

Language: Английский

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Strategies to Boost the Safety and Ionic Conductivity of Lithium‐Ion Batteries Using Solid State Electrolytes: A Review

Wiley Interdisciplinary Reviews Energy and Environment, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 2, 2025

ABSTRACT The enormous potential of lithium‐ion batteries (LIBs) to provide environmentally sustainable practices and efficient energy storage has led a rising interest in LIBs. Thermal runaway behaviors LIBs, including high temperature, ejection, combustion, explosion, the release toxic gases, as well thermal failure propagation battery pack, are both possible. Here, briefly mentioned about solid‐state electrolytes (SSE), which may use make LIBs safer by reducing these risks. However, SSE's ionic conductivity is subpar when compared that other liquid electrolytes, demanding modification. authors have also focused on several SSE types this review, inorganic SSE, solid polymer (SPEs), composite electrolytes. Additionally, it was described how enhance SSEs at ambient temperature.

Language: Английский

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Solid Polymer Electrolytes for All‐Solid‐State Lithium–Sulfur Batteries: Different Designs Dependent on Their Interaction with Sulfur Cathodes

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

Published: April 14, 2025

Abstract Nonflammable and flexible solid polymer electrolytes (SPEs) are widely studied to improve the safety of lithium–sulfur batteries (LSBs). Studies on SPE‐based LSBs primarily focus addressing issues stemming from poor SPE properties, Li dendrites, “shuttle effect” polysulfides. Currently, strategies lithium (without sulfur cathodes) liquid electrolyte (LE)‐based SPEs) most commonly employed approaches tackle above issues. These designed without taking into account problems caused by coexistence SPEs cathodes, resulting in exhibiting significantly inferior performance than liquid‐electrolyte‐based LSBs. Therefore, for necessitate different designs. However, no reviews have focused aforementioned differences analyzing their corresponding causes thus far, which is unfavorable development this field. Herein, emerging advances comprehensively reviewed. In particular, first time, designs discussed. include high adsorption strength with polysulfides, corrosion polysulfides barrier layers, deterioration ionic conductivity SPEs, defective interfaces between cathodes SPEs. Finally, several pressing challenges future prospects field

Language: Английский

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Regulating cation-solvent interactions in PVDF-based solid-state electrolyte for advanced Li metal batteries

Chemical Science, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Poly(vinylidene fluoride) (PVDF)-based solid-state electrolytes (SSEs) have been considered promising candidates for advanced Li metal batteries due to their adequate mechanical strength and acceptable thermal stability. However, the poor compatibility between residual solvent inevitably leads fast capacity decay. Herein, we propose a multifunctional cation-anchor strategy regulate solvation chemistry in PVDF-based SSEs boost electrochemical performance of batteries. The strong interaction N,N-dimethylformamide (DMF) Zn2+ decreases participation DMF inner sheath Li+, inducing an anion-reinforced structure. unique structure facilitates formation robust LiF-rich solid electrolyte interphase layer eliminate interfacial side reactions. In addition, continuous ion-conducting network is constructed by introducing extra TFSI- anions, enabling accelerated Li+ transport. As result, corresponding Li‖Li symmetrical cells achieve stable lithium plating/stripping over 780 h, rate cycling stability Li‖LiFePO4 are significantly improved. This work highlights key role regulation

Language: Английский

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Pronounced Role of Lithium‐Controlling Polymer in Water‐Processable/Halogen‐Free All‐Solid‐State Electrolytes for Lithium Supercapacitors

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 17, 2025

Abstract Polymeric solid‐state electrolytes (SSEs) with environmentally friendly processes deliver safer and cleaner energy storage devices without fires leakages than conventional liquid electrolytes. Here, water‐processable halogen‐free polymeric SSEs are demonstrated high ion conductivity (≈6 mS cm −1 ), prepared from aqueous solutions consisting of branched poly(ethylene imine) (bPEI), lithium hydroxide (LiOH), poly(4‐styrene sulfonic acid) (PSSA). The bPEI:LiOH:PSSA (PLP) various PSSA molar ratios applied to asymmetric supercapacitors graphite‐based anodes indium tin oxide (ITO) counter electrodes. ratio strongly affected the PLP SSEs, leading a maximum at = 40 mol%, owing role in controlling size LiOH domains for better Li + transport pathways. enhanced enabled PLP‐supercapacitors build potential 2.24 V compared 1.64 0 upon galvanostatic charge/discharge current density 0.2 mA g . endurance test shows that (PSSA mol%) can function stably capacitance retention (96.2%) more 5000 cycles, ≈80% 80 °C, supporting their practical use high‐safety batteries.

Language: Английский

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Interface compatibility between sulfide solid electrolytes and Ni-rich oxide cathode materials: factors, modification, perspectives

Journal of Energy Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

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