Lean-water hydrogel electrolyte for zinc ion batteries

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: July 1, 2023

Abstract Solid polymer electrolytes (SPEs) and hydrogel were developed as for zinc ion batteries (ZIBs). Hydrogels can retain water molecules provide high ionic conductivities; however, they contain many free molecules, inevitably causing side reactions on the anode. SPEs enhance stability of anodes, but typically possess low conductivities result in impedance. Here, we develop a lean electrolyte, aiming to balance transfer, anode stability, electrochemical window resistance. This is equipped with molecular lubrication mechanism ensure fast transportation. Additionally, this design leads widened highly reversible plating/ stripping. The full cell shows excellent cycling capacity retentions at current rates, respectively. Moreover, superior adhesion ability be achieved, meeting needs flexible devices.

Language: Английский

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Optimization Strategies Toward Functional Sodium‐Ion Batteries

Energy & environment materials, Journal Year: 2023, Volume and Issue: 6(4)

Published: May 8, 2023

Exploration of alternative energy storage systems has been more than necessary in view the supply risks haunting lithium‐ion batteries. Among various electrochemical devices, sodium‐ion battery outstands with advantages cost‐effectiveness and comparable density Thanks to similar mechanism, research development batteries have forged a solid foundation for explorations. Advancements witnessed terms superior performance broader application scenarios. Here, strategies adopted optimize components (cathode, anode, electrolyte, separator, binder, current collector, etc.) cost, safety, commercialization issues are summarized discussed. Based on these optimization strategies, assembly functional (flexible, stretchable, self‐healable, self‐chargeable) integrated (−actuators, −sensors, electrochromic, realized. Despite achievements, challenges including density, scalability, trade‐off between functionality, etc. be addressed commercialization. This review aims at providing an overview up‐to‐date achievements serves inspire efforts designing upgraded

Language: Английский

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Electric Field-Driven Long-Range Order and Enhanced Polarization Switching in High-Dipole Ionic Liquids

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

Ionic liquids (ILs) with significant dipole moments exhibit massive electric polarization (P) under an applied AC field (E) at room temperature. Among the various investigated ILs, p-toluene sulfonate of 1-ethyl-3-methylimidazolium, [C2mim][Tos], which has a large moment in tosylate anion (∼10.99 D), shows hysteresis P-E curves high saturation (Ps ∼ 92 μC cm-2) and remanent (Pr 68 relatively low E (1.75 kV cm-1). The mechanism its switching ILs are corroborated by current peaks observed density (j) versus (j-E) profiles change fluorescence intensity cyanine dye doped ILs. reversible changes response to reflect dynamic orientational IL, synchronized reversal. dependence Ps Pr values on fields is fitted two straight lines different slopes, below above threshold Eth (∼1.25 Long-range order not obtained potential Eth. Under Eth, more responses observed. present study indicates presence long-range ordering molecular over distance than 1 μm from interfacial adsorption layers through transition zone bulk zone.

Language: Английский

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Ionic liquid gel polymer electrolytes for flexible supercapacitors: Challenges and prospects

Current Opinion in Electrochemistry, Journal Year: 2022, Volume and Issue: 35, P. 101046 - 101046

Published: May 10, 2022

Language: Английский

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Performance of ethanolamine-based ionic liquids as novel green electrolytes for the electrochemical energy storage applications

Electrochimica Acta, Journal Year: 2023, Volume and Issue: 474, P. 143499 - 143499

Published: Nov. 15, 2023

Language: Английский

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Recent advances on metal molybdate-based electrode materials for supercapacitor application

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 79, P. 110122 - 110122

Published: Dec. 27, 2023

Language: Английский

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Understanding the Electrode–Electrolyte Interfaces of Ionic Liquids and Deep Eutectic Solvents

Langmuir, Journal Year: 2024, Volume and Issue: 40(7), P. 3283 - 3300

Published: Feb. 11, 2024

Developing unconventional electrolytes such as ionic liquids (ILs) and deep eutectic solvents (DESs) has led to remarkable advances in electrochemical energy storage conversion devices. However, the understanding of electrode-electrolyte interfaces these electrolytes, specifically liquid structure charge/electron transfer mechanism rates, is lacking due complexity molecular interactions, difficulty studying buried with nanometer-scale resolution, distribution time scales for various interfacial events. This Feature Article outlines standing questions field, summarizes some exciting approaches results, discusses our contributions probing electrified by impedance spectroscopy (EIS), surface-enhanced Raman (SERS), neutron reflectivity (NR). The related findings are analyzed within electrical double-layer models provide a framework ILs, DESs, and, more broadly, concentrated hydrogen-bonded electrolytes.

Language: Английский

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Liquid Metal‐Based Biosensors: Fundamentals and Applications

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(31)

Published: Jan. 23, 2024

Abstract Biosensors are analytical tools for monitoring various parameters related to living organisms, such as humans and plants. Liquid metals (LMs) have emerged a promising new material biosensing applications in recent years. LMs attractive physical chemical properties deformability, high thermal electrical conductivity, low volatility, viscosity. LM‐based biosensors represent strategy particularly wearable real‐time sensing. While early demonstrations of LM focus on strain, motion, temperature, examples show can be an excellent sensing biochemical biomolecular detection well. In this review, the progress personalized healthcare disease via both signaling is survey. It started with brief introduction fundamentals LMs, followed by discussion different mechanisms which transduce biological or physiological signals. Next, it reviewed example that been used real systems, ranging from on‐skin target‐specific detection. Finally, challenges future directions LM‐integrated biosensor platforms discussed.

Language: Английский

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How to Assess and Predict Electrical Double Layer Properties. Implications for Electrocatalysis

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(22), P. 12391 - 12462

Published: Nov. 11, 2024

The electrical double layer (EDL) plays a central role in electrochemical energy systems, impacting charge transfer mechanisms and reaction rates. fundamental importance of the EDL interfacial electrochemistry has motivated researchers to develop theoretical experimental approaches assess properties. In this contribution, we review recent progress evaluating characteristics such as double-layer capacitance, highlighting some discrepancies between theory experiment discussing strategies for their reconciliation. We further discuss merits challenges various techniques having important implications aqueous electrocatalysis. A strong emphasis is placed on substantial impact electrode composition structure electrolyte chemistry addition, effects temperature pressure compare solid-liquid interfaces solid-solid interfaces.

Language: Английский

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Flexible carbon fiber based structural supercapacitor composites with solvate ionic liquid-epoxy solid electrolyte

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 455, P. 140778 - 140778

Published: Dec. 5, 2022

Language: Английский

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