Tailoring desolvation strategies for aqueous zinc-ion batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(14), С. 4819 - 4846

Опубликована: Янв. 1, 2024

This review provides a comprehensive overview detailing the advancements in desolvation strategies pertaining to aqueous zinc-ion batteries (AZIBs) performances, addressing applications and working mechanisms of AZIBs.

Язык: Английский

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Sodium‐Ion and Polyaniline Co‐Intercalation into Ammonium Vanadate Nanoarrays Induced Enlarged Interlayer Spacing as High‐Capacity and Stable Cathodes for Flexible Aqueous Zinc‐Ion Batteries

Advanced Functional Materials, Год журнала: 2023, Номер 33(48)

Опубликована: Июль 12, 2023

Abstract Vanadate oxides with low price and high theoretical capacity are competitive cathodes for aqueous zinc‐ion batteries (AZIBs). However, the existing problems such as sluggish Zn 2+ ion mobility, weak conductivity, complicated flexible electrode preparation hinder development of their practical applications in AZIBs (FAZIBs). Herein, sodium‐ion polyaniline co‐inserted into ammonium vanadate (NaNVO‐PANI) nanoarrays, which can serve novel freestanding FAZIBs. By virtue synergistic pillar effect sodium ions polyaniline, interplanar spacing NaNVO‐PANI expands to ≈13.8 Å. Both experimental data calculation confirm that optimal boost enhance electronic conductivity reduce diffusion barrier. As expected, resulting coin‐type exhibit 610.7 mAh g −1 at 0.5 A remarkable retention 98% after 5000 cycles 5 . More encouragingly, quasi‐solid‐state FAZIBs sandwich structure assembled, achieving impressive energy density 345.59 Wh kg a power 380.46 W This study is great significance developing high‐performance vanadium‐based wearable

Язык: Английский

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Tough, Anti‐Fatigue, Self‐Adhesive, and Anti‐Freezing Hydrogel Electrolytes for Dendrite‐Free Flexible Zinc Ion Batteries and Strain Sensors

Advanced Functional Materials, Год журнала: 2024, Номер 34(26)

Опубликована: Фев. 27, 2024

Abstract Quasi‐solid aqueous zinc ion batteries (AZIBs) based on flexible hydrogel electrolytes are promising substitutions of lithium‐ion owing to their intrinsic safety, low cost, eco‐friendliness and wearability. However, it remains a challenge lower the freezing point without sacrificing fundamental advantages such as conductivity mechanical properties. Herein, an all‐around electrolyte is constructed through convenient energy dissipation strategy via rapid reversible intramolecular/intermolecular ligand exchanges between Zn 2+ alterdentate ligands. The as‐obtained exhibits excellent properties, fatigue resistance, high Zn‐ion (38.2 mS cm −1 ), good adhesion (19.1 kPa), ultra‐low (−97 °C). Due ligands help improve solvation structure guide uniform deposition, Zn||Zn symmetric cells show stable plating/stripping behavior long‐term cycle stability. Zn||V 2 O 5 full exhibit large capacity 230.6 mAh g retention 75.2% after 1000 cycles. Furthermore, AZIBs operate stably even under extreme conditions including temperature (−40 °C) bending angle (180°). mechanically damage‐resistant can also be utilized in strain sensors. This work offers facile for developing deformation‐resistant, dendrite‐free, environmentally adaptable AZIBs.

Язык: Английский

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Solvent‐Free Ultrafast Construction of Se‐Deficient Heterojunctions of Bimetallic Selenides toward Flexible Sodium‐Ion Full Batteries

Advanced Materials, Год журнала: 2023, Номер 36(4)

Опубликована: Окт. 26, 2023

Abstract Flexible quasi‐solid‐state sodium ion batteries featuring their low‐cost, high safety and excellent mechanical strength have attracted widespread interest in the field of wearable electronic devices. However, development such faces great challenges including construction interfacial compatible flexible electrode materials addressing demands electrolyte. Here selenium‐vacancies regulated bimetallic selenide heterojunctions anchored on waste cotton cloth‐derived carbon cloth (FCC) with robust C‐Se‐Co/Fe chemical bonds as a anode material (CCFSF) is proposed by ultrafast microwave pyrolysis method. Rich selenium vacancies CoSe 2 /FeSe 2−x heterostructures are synchronously formed that can significantly improve ionic diffusion kinetics. Additionally, uniform layer coating surface Se‐deficient endows it outstanding structural stability. The cathode (PB@FCC) also fabricated directly growing Prussian blue nanoparticles FCC. Furthermore, an advanced Na‐ion pouch cell assembled coupling CCFSF anode, PB@FCC P(VDF‐HFP)‐based gel polymer full not only demonstrates energy storage performance but flexibility safety. present work offers effective avenue to achieve device, promoting

Язык: Английский

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Hydrogel Electrolyte Enabled High‐Performance Flexible Aqueous Zinc Ion Energy Storage Systems toward Wearable Electronics

Small, Год журнала: 2023, Номер 19(48)

Опубликована: Авг. 2, 2023

To cater to the swift advance of flexible wearable electronics, there is growing demand for energy storage system (ESS). Aqueous zinc ion systems (AZIESSs), characterizing safety and low cost, are competitive candidates storage. Hydrogels, as quasi-solid substances, appropriate burgeoning electrolytes that enable high-performance AZIESSs. However, challenges still remain in designing suitable comprehensive hydrogel electrolyte, which provides AZIESSs with high reversibility versatility. Hence, application electrolyte-based electronics restricted. A thorough review required electrolyte design pave way This delves into engineering desirable from perspective designers. Detailed descriptions basic characteristics, Zn anode, cathode stabilization effects well their functional properties provided. Moreover, discussed, expecting accelerate strides toward lives. Finally, corresponding future development trends also presented, hope inspiring readers.

Язык: Английский

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Emerging Amorphous to Crystalline Conversion Chemistry in Ca‐Doped VO₂ Cathodes for High‐Capacity and Long‐Term Wearable Aqueous Zinc‐Ion Batteries

Advanced Materials, Год журнала: 2023, Номер 36(11)

Опубликована: Авг. 10, 2023

Amorphous transition metal oxides have attracted significant attention in energy storage devices owing to their potentially desirable electrochemical properties caused by abundant unsaturated dangling bonds. However, the amorphization further amplifies shortcoming of poor intrinsic electronic conductivity oxides, resulting unsatisfying rate capability and power density. Herein, freestanding amorphous Ca-doped V

Язык: Английский

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Critical challenges and solutions: quasi-solid-state electrolytes for zinc-based batteries

Energy & Environmental Science, Год журнала: 2024, Номер 17(10), С. 3270 - 3306

Опубликована: Янв. 1, 2024

QSSEs are emerging in aqueous ZBs and modern applications. By summarizing the fundamentals of materials properties, battery performance applications QSSEs, this review provides insight into future development optimization wider application fields.

Язык: Английский

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High‐Fluidity/High‐Strength Dual‐Layer Gel Electrolytes Enable Ultra‐Flexible and Dendrite‐Free Fiber‐Shaped Aqueous Zinc Metal Battery

Advanced Materials, Год журнала: 2024, Номер 36(21)

Опубликована: Фев. 25, 2024

Abstract Fiber‐shaped aqueous zinc‐ion batteries (FAZIBs) with intrinsic safety, highcapacity, and superb omnidirectional flexibility hold promise for wearable energy‐supply devices. However, the interfacial separation of fiber‐shaped electrodes electrolytes caused by Zinc (Zn) stripping process severe Zn dendrites occurring at folded area under bending condition seriously restricts FAZIBs' practical application. Here, an advanced confinement encapsulation strategy is originally reported to construct dual‐layer gel electrolyte consisting high‐fluidity polyvinyl alcohol‐Zn acetate inner layer high‐strength alginate outer anode. Benefiting from synergistic effect inner‐outer formation solid interphase on anode surface lysine additive, resulting Zn‐Zn symmetric cell delivers long cycling life over 800 h 1 mA cm −2 dynamic frequency 0.1 Hz. The finite element simulation further confirms that can effectively suppress arising process. More importantly, a robust twisted Zn/zinc hexacyanoferrate battery based successfully assembled, achieving remarkable capacity retention 97.7% after 500 cycles. Therefore, such novel design paves way development long‐life metal batteries.

Язык: Английский

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A Robust Hydrogel Electrolyte with Ultrahigh Ion Transference Number Derived from Zincophilic “Chain‐Gear” Network Structure for Dendrite‐Free Aqueous Zinc Ion Battery

Advanced Functional Materials, Год журнала: 2024, Номер 34(37)

Опубликована: Апрель 10, 2024

Abstract As a promising energy storage device, an aqueous zinc ion battery (AZIB) still suffers dendrite growth, hydrogen evolution, and corrosion. Hydrogel electrolyte solves the above issues to some extent. Nevertheless, mechanical properties of most hydrogel electrolytes are not competitive enough meet booming demand for flexible electronics. In this work, robust “chain‐gear” (PM‐HE) crosslinked by polymeric micelles (PMs) is constructed, in which PMs serve as “gears” form structure with polyanion chains. Specifically, support molecular chains, constructing hierarchically porous structures opening up paths Zn 2+ . Apart from crosslinkers, exist mechanism chains promote decoupling. Such can realize desolvation accelerate transport. Thereby, PM‐HE possesses excellent ionic conductivity (60.6 mS cm −1 ) ultrahigh transference number (0.88). Symmetrical cells stable cycling over 1500 h uniform deposition. Remarkably, has tensile (0.23 MPa) compressive (11.3 profited strengthening toughening effect PMs. The supply power stably under harsh conditions. This work proposes strategy all‐around based on reasonable design network structure, providing more possibilities practical application AZIB.

Язык: Английский

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Progress and challenges of electrolyte modulation in aqueous zinc-ion batteries

Rare Metals, Год журнала: 2024, Номер 43(7), С. 2940 - 2967

Опубликована: Апрель 9, 2024

Язык: Английский

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