Comprehensive Insights into Aqueous Potassium‐Ion Batteries

Advanced Energy Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 9, 2024

Abstract Aqueous potassium‐ion batteries (AKIBs) with mild aqueous electrolytes can significantly mitigate the safety and environmental issues raised from traditional nonaqueous batteries, positioning them as promising candidates for grid‐scale applications. Nonetheless, progression of AKIBs is currently impeded by insufficient energy density, largely attributed to limited voltage window electrolytes. This review aims introduce foundational knowledge about illustrates recent advancements in AKIBs, offers valuable perspectives on designing electrode materials optimizing To provide a systematic overview, focus following seven key sections: i) development history, ii) materials, iii) electrolyte design, iv) current collectors, v) interphase chemistry, vi) full cell configurations, vii) future prospects. Finally, constructive insights suggestions are provided higher density.

Язык: Английский

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Intrinsic Anti‐Freezing, Tough, and Transparent Hydrogels for Smart Optical and Multi‐Modal Sensing Applications

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 8, 2025

Abstract Hydrogels have received great attention due to their molecular designability and wide application range. However, they are prone freeze at low temperatures the existence of mass water molecules, which can damage flexibility transparency, greatly limiting use in cold environments. Although adding cryoprotectants reduce freezing point hydrogels, it may also deteriorate mechanical properties face risk cryoprotectant leakage. Herein, microphase‐separated structures hydrogels regulated confine molecules sub‐6 nm nanochannels increase proportion bound water, endowing with intrinsic anti‐freezing properties, high strength, good stretchability, remarkable fracture energy, puncture resistance. Even after being kept liquid nitrogen for 1000 h, hydrogel still maintains transparency. The exhibit excellent low‐temperature shape memory intelligent optical waveguide properties. Additionally, be assembled into strain pressure sensors flexible sensing both room temperatures. intrinsically offers broad prospects electronic applications.

Язык: Английский

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Tough and adhesive conductive hydrogels with fast gelation from a polyphenol–aluminium ion dual self-catalysis system for wearable strain sensors and triboelectric nanogenerators

Journal of Materials Chemistry C, Год журнала: 2024, Номер unknown

Опубликована: Янв. 1, 2024

A tough and adhesive conductive double network hydrogel (PVA/PHEAA–TA–Al 3+ gel) was prepared via rapid in situ room temperature gelation processes (25 °C, 215 s) a tannic acid–aluminium ion (TA–Al ) dual self-catalysis system.

Язык: Английский

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High Antimicrobial Electrotherapy and Wound Monitoring Hydrogel with Bimetal Phenolic Networks for Smart Healthcare

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 30, 2024

Abstract The design and fabrication of novel soft bioelectronic materials for rapid wound healing real‐time monitoring are critical smart healthcare. However, developing such integrated multifunctional devices remains challenging due to dynamics sensing interface issues. Herein, a strategy is presented accelerating the kinetics hydrogels integrating antimicrobial, electrotherapeutic, functions via bimetallic phenolic networks. Al 3+ catalyzes radical copolymerization reaction acrylic acid, resulting in gelation system within 10 s, also redox between silver lignin, inducing sustained release catechol, which significantly enhances hydrogel's antimicrobial activity shortened process. Meanwhile, abundant non‐covalent interactions enhance tissue adhesion, mechanical properties (tensile strength 1.558 MPa elongation 1563%). In addition, ions endow with excellent properties. Under synergy electrical stimulation, rate accelerated. Notably, assessment can be performed by changes signals over wound, assist physicians patients achieving intelligent management. This work provides new insights into application materials.

Язык: Английский

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Ultra‐stretchable, super‐tough, and highly stable ion‐doped hydrogel for advanced robotic applications and human motion sensing

InfoMat, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

Abstract Hydrogel‐based sensors are recognized as key players in revolutionizing robotic applications, healthcare monitoring, and the development of artificial skins. However, primary challenge hindering commercial adoption hydrogel‐based is their lack high stability, which arises from water content within hydrogel structure, leading to freezing at subzero temperatures drying issues if protective layer compromised. These factors result a significant decline benefits offered by aqueous gel electrolytes, particularly terms mechanical properties conductivity, crucial for flexible wearable electronics. Previous reports have highlighted several disadvantages associated with using cryoprotectant co‐solvents lower ion‐doped anti‐freezing sensors. In this study, design optimization photocrosslinkable ionic utilizing silk methacrylate novel natural crosslinker presented. This innovative demonstrates significantly enhanced properties, including stretchability (>1825%), tensile strength (2.49 MPa), toughness (9.85 MJ m – 3 ), resilience (4% hysteresis), compared its non‐ion‐doped counterpart. Additionally, exhibits exceptional nonfreezing behavior down −85°C, anti‐drying functional stability up 2.5 years, signal drift only 5.35% over 2450 cycles, whereas control variant, resembling commonly reported hydrogels, 149.8%. The successful application developed advanced robotics, combined pioneering demonstration combinatorial commanding single sensor, could potentially revolutionize sensor design, elevating it next level benefiting various fields. image

Язык: Английский

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Rapid Polymerization of Anti-Freezing Hydrogels Using a Lignin Sulfonate–Zn²⁺ Self-Catalytic System for Strain and Temperature Sensors

ACS Applied Polymer Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 2, 2025

Hydrogel electrolytes with antifreezing performance and excellent mechanical properties have become a research hotspot, but the general preparation process requires time energy consumption, limiting scope of applications. In this work, simple, universal, fast gelation based on sodium lignin sulfonate macromolecule–zinc ion (LS-Zn2+) self-catalytic system is developed. The catechol group LS can coordinate Zn2+ to form complexes accelerate establishment reversible oxidation–reduction, which promote rapid polymerization vinyl monomers by generating various free radicals (OH• 1O2). does not require any additional be completed within 5 min controlling mass fraction concentration or acids. strength preferred hydrogel electrolyte reach tensile stress 0.14 MPa under 1750% strain. possesses an conductivity 3.67 mS cm–1 at extreme temperatures as low −40 °C. sensor detect parts human body in wide temperature range stable output resistance signals. This work provides LS-Zn2+ method for multifunctional hydrogels.

Язык: Английский

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Functionalities and properties of conductive hydrogel with nanocellulose integration

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159872 - 159872

Опубликована: Янв. 1, 2025

Язык: Английский

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Mussel-inspired adhesive and tough hydrogel for drug release based on lignin-containing cellulose nanofiber

International Journal of Biological Macromolecules, Год журнала: 2025, Номер unknown, С. 141458 - 141458

Опубликована: Фев. 1, 2025

Язык: Английский

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Transparent cellulose-lignin films containing Fe3+ with high UV absorption for thermal management

International Journal of Biological Macromolecules, Год журнала: 2025, Номер 294, С. 139475 - 139475

Опубликована: Янв. 5, 2025

Язык: Английский

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High Energy Quasi‐Solid‐State Supercapacitors Totally Derived from Alginate Hydrogel

Small, Год журнала: 2025, Номер unknown

Опубликована: Март 3, 2025

Abstract Utilizing sustainable and low‐cost resources to achieve high‐energy supercapacitors (SCs) remains a significant challenge. Herein, we propose strategy design quasi‐solid‐state SCs, where electrode materials, binder, electrolyte are entirely derived from sodium alginate (SA). N‐doped porous carbon (NPC) with well‐developed hierarchical pores high nitrogen content is synthesized via the direct in‐situ carbonization of Ca 2+ −crosslinked hydrogel urea. The resulting distribution mesopores micropores in NPC facilitates ions transport adsorption ensures electric‐double‐layer capacitance, while its nitrogen‐doping provides substantial pseudo‐capacitance. In addition, use SA as binder significantly improves water wettability lowers charge transfer resistance, further enhancing ion accessibility capacitance electrode. tough electrolyte, combined interpenetrating polyacrylamide networks, exhibits enhanced mechanical strength, retention, ionic conductivity. Consequently, as‐fabricated all‐in‐one alginate‐based SC delivers an outstanding energy density 20.2 Wh kg −1 at 112.5 W exceptional cycling stability 95.9% over 10 000 cycles A g . This innovative highlights value‐added biomass both material engineering device integration perspective, paving way for manufacture SCs.

Язык: Английский

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