An ionically cross-linked composite hydrogel electrolyte based on natural biomacromolecules for sustainable zinc-ion batteries

Nanoscale Horizons, Год журнала: 2024, Номер 9(9), С. 1514 - 1521

Опубликована: Янв. 1, 2024

Zinc-ion batteries (ZIBs) are regarded as promising power sources for flexible and biocompatible devices due to their good sustainability high intrinsic safety. However, applications have been hindered by the issues of uncontrolled Zn dendrite growth severe water-induced side reactions in conventional liquid electrolytes. Herein, an ionically cross-linked composite hydrogel electrolyte based on natural biomacromolecules, including iota-carrageenan sodium alginate, is designed promote highly efficient reversible plating/stripping. The abundant functional groups macromolecules effectively suppress reactivity water molecules facilitate uniform deposition. Moreover, exhibits a ionic conductivity 5.89 × 10

Язык: Английский

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Advances in wearable energy storage and harvesting systems

Med-X, Год журнала: 2025, Номер 3(1)

Опубликована: Янв. 14, 2025

Abstract The development of wearable energy sto rage and harvesting devices is pivotal for advancing next-generation healthcare technologies, facilitating continuous real-time health monitoring. Traditional have been constricted by bulky rigid batteries, limiting their practicality comfort. However, recent advancements in materials science enabled the creation flexible, stretchable, lightweight storage solutions. integration technologies essential developing self-sustaining systems that minimize reliance on external power sources enhance device longevity. These integrated ensure operation sensors processors vital This review examines significant progress harvesting, focusing latest devices, solar cells, biofuel triboelectric nanogenerators, magnetoelastic gene rators, supercapacitors, lithium-ion zinc-ion batteries. It also discusses key parameters crucial applications, such as density, durability. Finally, addresses future challenges prospects this rapidly evolving field, underscoring potential innovative, self-powered applications. Graphical

Язык: Английский

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Single-crystalline Mn2V2O7 with high operating voltage and energy density as a cathode material for aqueous zinc-ion batteries

Journal of Energy Storage, Год журнала: 2025, Номер 109, С. 115241 - 115241

Опубликована: Янв. 5, 2025

Язык: Английский

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An Ultrahigh‐Modulus Hydrogel Electrolyte for Dendrite‐Free Zinc Ion Batteries

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 14, 2024

Abstract Quasi‐solid‐state aqueous zinc ion batteries suffer from anodic dendrite growth during plating/stripping processes, impeding their commercial application. The inhibition of dendrites by high‐modulus electrolytes has been proven to be effective. However, hydrogel are difficult achieve high modulus owing inherent water contents. This work reports a electrolyte with ultrahigh that can overcome the stress through mechanical suppression effect. By combining wet‐annealing, solvent‐exchange, and salting‐out processes tuning hydrophobic crystalline domains, is obtained substantial content (≈70%), (198.5 MPa), toughness (274.3 MJ m −3 ), zinc‐ion conductivity (28.9 mS cm −1 which significantly outperforms previously reported poly(vinyl alcohol)‐based hydrogels. As result, exhibits excellent dendrite‐suppression effect achieves stable performance in Zn||Zn symmetric (1800 h cycle life at 1 mA −2 ). Moreover, Zn||V 2 O 5 pouch display cycling operate stably even under extreme conditions, such as large bending angle (180°) automotive crushing. provides promising approach for designing mechanically reliable advanced batteries.

Язык: Английский

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Inorganic Electrolyte Additive Promoting the Interfacial Stability for Durable Zn‐Ion Batteries

Small, Год журнала: 2024, Номер 20(45)

Опубликована: Июль 22, 2024

Abstract The development of Zn‐ion batteries (ZIBs) is always hindered by the ruleless interface reactions between solid electrode and liquid electrolyte, seeking appropriate electrolyte additives considered as a valid approach to stabilize electrode/electrolyte interphases for high‐performance ZIBs. Benefiting from unique solubility TiOSO 4 in acidic solution, composite 2 m ZnSO +30 (ZSO/TSO) configured its positive contribution Zn//Zn cells, Zn//Cu Zn//NH V O 10 are comprehensively investigated electrochemical tests theoretical calculations. Based on calculations, introduction contributes facilitating desolvation kinetics Zn 2+ ions guarantees stable both zinc anode NH cathode. As expected, cells keep long‐term cycling behavior 3750 h under test condition 1 mA cm −2 –1 mAh , deliver high Coulombic efficiency 99.9% 1000 cycles 5 maintain reversible specific capacity 193.8 g −1 after 1700 at A ZSO/TSO electrolyte. These satisfactory results manifest that additive holds great potential improve performances

Язык: Английский

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Anti-Freezing Hydrogel Electrolyte with Regulated Hydrogen Bond Network Enables High-Rate and Long Cycling Zinc Batteries

Energy & Environmental Science, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

1,2-Propylene glycol modulates the hydrogen bond network and solvation sheath structure of polyacrylamide hydrogel electrolytes, reducing solvent–solvent interactions, promoting uniform Zn 2+ deposition, enhancing AZIB cycling stability.

Язык: Английский

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Unlocking Quasi‐Solid‐State Anode‐Free Zinc Metal Batteries Through Robust Bilayer Interphase Engineering

Advanced Energy Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 4, 2025

Abstract Anode‐free aqueous zinc (Zn) metal batteries (AFZMBs) possess an optimal battery architecture configuration because no excess Zn source is involved in the charge/discharge processes, rendering it feasible to enhance energy density of batteries. However, rapid capacity fading due unstable anode‐side current collector/electrolyte interfacial chemistry, which results dendrite growth, impedes their practical application, especially quasi‐solid‐state AFZMBs. Herein, a robust bilayer interphase design strategy between gel electrolyte and copper collector proposed achieve high‐energy stable Utilizing upper mass transfer layer regulate ion transport lower zincophilic electron induce initial uniform nucleation balance surface electric field, dendrite‐free deposition prominent reversibility are achieved. Therefore, significantly improves cycling stability Zn//I 2 Additionally, fabricated AFZMBs employing pre‐intercalated VO cathode deliver attractive power densities (186.1 Wh kg −1 /470 W 145.3 /1.74 kW , based on active material). Moreover, successful extension flexible offers promising pathway for development wearable electronic devices.

Язык: Английский

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Aerogel‐Driven Interface Rapid Self‐Gelation Enables Highly Stable Zn Anode

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 29, 2024

Abstract The practical application of Zn metal anodes is currently hindered by uncontrolled dendritic growth and water‐induced parasitic reactions that are closely related to the solvation structure interfacial transport kinetics 2+ . Herein, a facile interface self‐gelation strategy proposed stabilize anode introducing ‐OH‐rich silica aerogel (HSA) on surface. unique interconnected network strong hydrophilia HSA made aqueous electrolyte near gel rapidly spontaneously, resulting in formation water‐poor layer. layer can effectively accelerate desolvation process reduce water molecule activity surface through hydrogen bonding interaction, thus achieving rapid migration alleviating side reactions. In addition, well‐defined nanochannels provide fast path homogenize flux, enabling uniform deposition. As result, HSA‐modified (HSA@Zn) exhibits excellent long‐term cycling stability (over 6000 h at 4 mA cm −2 ), feasibility for this HSA@Zn further demonstrate full cells. aerogel‐driven propose work provides new insights into design advanced zinc‐ion batteries.

Язык: Английский

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Missing-Linker Defect Functionalized Metal–Organic Frameworks Accelerating Zinc Ion Conduction for Ultrastable All-Solid-State Zinc Metal Batteries

ACS Nano, Год журнала: 2024, Номер 18(36), С. 25237 - 25248

Опубликована: Авг. 29, 2024

Solid-state polymer electrolytes (SPEs) are promising for high-performance zinc metal batteries (ZMBs), but they encounter critical challenges of low ionic conductivity, limited Zn2+ transference number (tZn2+), and an unstable electrolyte-electrode interface. Here, we present effective approach involving a missing-linker metallic organic framework (MOF)-catalyzed poly(ethylene glycol) diacrylate (PEGDA)/polyacrylamide (PAM) copolymer SPE single conduction seamless contact. The single-Zn2+ is facilitated by the anchoring OTF– anions onto unsaturated sites MOF, while PEGDA PAM chains in competitive coordination with ions promote rapid Zn ion transport. Our all-solid-state electrolyte simultaneously achieves superior conductivity 1.52 mS cm–1 high tZn2+ 0.83 at room temperature, alongside uniform deposition (1000 cycles symmetric cells) plating/striping efficiencies (>99% after 600 asymmetric cells). Applications our Zn//VO2 full cells further demonstrated long lifespan 2000 extremely low-capacity degradation rate 0.012% per cycle. This work provides strategy using MOF to catalyze competitively coordinating copolymers accelerating conduction, assisting future design ZMBs.

Язык: Английский

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Dual-ion “Rocking-Chair” chemistry: A vanadium dioxide anode with pre-intercalated zinc ions and protons for zinc metal-free zinc-ion batteries

Chemical Engineering Journal, Год журнала: 2024, Номер 498, С. 155373 - 155373

Опубликована: Сен. 3, 2024

Язык: Английский

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