An Anti‐Freezing Hydrogel Electrolyte for Flexible Zinc‐Ion Batteries Operating at −70 °C

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 33(24)

Published: March 20, 2023

Abstract Aqueous zinc‐ion batteries (ZIBs) are considered as the promising candidate of flexible energy storage devices due to their high safety, eco‐friendliness, and low‐cost. However, conventional aqueous ZIBs undergo severe capacity loss at bending subzero temperature states. Herein, an anti‐freezing hydrogel electrolyte based on zinc tetrafluoroborate (Zn(BF 4 ) 2 polyacrylamide (PAM) is developed. Owing strong electronegativity F atoms, BF − anions interact with water molecules by OH···F replace OH···O between in Zn(BF ‐PAM electrolyte, inhibiting formation ice crystal lattice low‐temperature. Therefore, remains unfrozen state, good flexibility, ionic conductivity even −70 °C, which ensures that they can act electrolytes ZIBs. As a proof concept, all‐in‐one integrated configuration assembled hydrogel. They display enhanced electrochemical performance such retention remarkable cyclic stability. Furthermore, also maintain stable under different states °C. This work broadens practical application ultralow temperature.

Language: Английский

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Sorbitol-modified cellulose hydrogel electrolyte derived from wheat straws towards high-performance environmentally adaptive flexible zinc-ion batteries

Chemical Engineering Journal, Journal Year: 2022, Volume and Issue: 446, P. 137056 - 137056

Published: May 18, 2022

Language: Английский

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A comprehensive review on fundamentals and components of zinc-ion hybrid supercapacitors

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 81, P. 110370 - 110370

Published: Jan. 9, 2024

Language: Английский

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Recent progress on carbon materials for emerging zinc-ion hybrid capacitors

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(16), P. 9400 - 9420

Published: Jan. 1, 2024

The fundamental and research progress on carbon materials for zinc ion hybrid capacitors (ZHCs) is systematically summarized. existing challenges perspectives are also proposed to promote the practical applications of high-performance ZHCs.

Language: Английский

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Design strategies and recent advancements of solid‐state supercapacitor operating in wide temperature range

Carbon Energy, Journal Year: 2024, Volume and Issue: 6(6)

Published: Feb. 27, 2024

Abstract Solid‐state supercapacitors (SSCs) are emerging as one of the promising energy storage devices due to their high safety, superior power density, and excellent cycling life. However, performance degradation safety issues under extreme conditions main challenges for practical application. With expansion human activities, such space missions, polar exploration, so on, investigation SSC with wide temperature tolerance, sustainability is highly desired. In this review, effects on systematically illustrated clarified, including properties electrolyte, ion diffusion, reaction dynamics supercapacitor. Subsequently, we summarize recent advances in wide‐temperature‐range SSCs from aspect electrolyte modification, electrode design, interface adjustment between especially critical concerns ionic conductivity stability. end, a perspective presented, expecting promote application harsh conditions.

Language: Английский

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Recent progress in flexible Zn‐ion hybrid supercapacitors: Fundamentals, fabrication designs, and applications

Carbon Energy, Journal Year: 2022, Volume and Issue: 5(1)

Published: Nov. 8, 2022

Abstract One of the most exciting new developments in energy storage technology is flexible Zn‐ion hybrid supercapacitors (f‐ZIHSCs), which combine high batteries with high‐power to satisfy needs portable electronics. However, development f‐ZHSCs still its infancy, and there are numerous barriers overcome before they can be widely implemented for practical applications. This review gives an up‐to‐date description recent achievements underlying concepts mechanisms f‐ZIHSCs emphasizes critical role cathode, anode, electrolyte materials systems speeding prosperity f‐ZIHSCs. The innovative nanostructured‐based cathode include carbon (e.g., porous carbon, heteroatom‐doped biomass‐derived graphene, etc.), metal‐oxides, MXenes, metal/covalent‐organic frameworks, other activated phosphorene, etc.) mainly focused. Afterward, latest anode frameworks impacts compositions on electrochemical properties f‐ZIHSC elaborated. Subsequently, advancements based fabrication designs, including quasi‐solid‐state, micro, fiber‐shaped, all climate‐changed f‐ZIHSCs, discussed detail. Lastly, a summary current challenges recommendations future progress advanced addressed. article anticipated further understand viable strategies achievable approaches assembling high‐performance boost technical revolutions electrolytes devices.

Language: Английский

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Natural Polysaccharide Strengthened Hydrogel Electrolyte and Biopolymer Derived Carbon for Durable Aqueous Zinc Ion Storage

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(20), P. 23452 - 23464

Published: May 12, 2022

Aqueous zinc-ion hybrid supercapacitors (ZHSCs) represent one of the current research subjects because their flame retardancy, ease manufacturing, and exceptional roundtrip efficiency. With evolution into real useful energy storage cells, bottleneck factors corrosion dendrite growth problems must be properly resolved for largely boosting cycling life Herein, a natural polysaccharide strengthened hydrogel electrolyte (denoted as PAAm/agar/Zn(CF3SO3)2) was engineered by designing an asymmetric dual network covalently cross-linked polyacrylamide PAAm) physically loose (e.g., agar) followed intense uptake Zn(CF3SO3)2 aqueous electrolyte. In this polymeric matrix, PAAm chains are responsible constructing soft domains to immobilize water molecules, agar component boosts mechanical performance (by using its inherent reversible sacrificial bonds) favors ion transport. Due these reasons, as-designed effectively inhibits zinc growth, realizes uniform Zn deposition, affords satisfactory ionic conductivity 1.55 S m–1, excellent tensile strength (78.9 kPa at 507.7% stretchable), high compression (118.0 60.0% strain). Additionally, biopolymer-derived N-doped carbon microsphere cathode material with highly interconnected porous carbonaceous NC) also synthesized, which delivers capacity 92.8 mAh g–1, along superb rate capability long duration lifespan (95.4% retention 10000 cycles) in Zn//NC ZHSC. More notably, integrated merits PAAm/agar/Zn(CF3SO3)2 NC, as-built quasi-solid-state ZHSC achieves specific 73.4 g–1 superior density 61.3 Wh kg–1 together stability cycles. This work demonstrated favorable practicability structural design electrolytes electrode materials advanced applications.

Language: Английский

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A gel polymer electrolyte based on ternary deep eutectic solvent for flexible, wide-temperature tolerant zinc-ion hybrid supercapacitors

Journal of Power Sources, Journal Year: 2022, Volume and Issue: 548, P. 232070 - 232070

Published: Sept. 14, 2022

Language: Английский

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High performance aqueous zinc battery enabled by potassium ion stabilization

Journal of Colloid and Interface Science, Journal Year: 2022, Volume and Issue: 628, P. 33 - 40

Published: Aug. 11, 2022

Language: Английский

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High ionic conductivity and toughness hydrogel electrolyte for high-performance flexible solid-state zinc-ion hybrid supercapacitors enabled by cellulose-bentonite coordination interactions

Green Chemistry, Journal Year: 2023, Volume and Issue: 25(4), P. 1635 - 1646

Published: Jan. 1, 2023

The lamellar structure of BT and coordination interaction with cellulose make hydrogel electrolytes have both high ionic conductivity mechanical strength, assembled ZHSCs can be applied in the field wearable electronic devices.

Language: Английский

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