Aqueous zinc batteries (AZBs) are considered one of the most promising candidates for grid-scale energy storage. However, achieving a stable electrode-electrolyte interface remains a challenge for developing high-performance AZBs. Herein, taking the Zn||phenazine (PNZ) system as a prototype, where the proton uptake/removal mechanism dominates in the cathode, a carboxylic acid-functionalized cellulose hydrogel electrolyte is designed to simultaneously solve the issues at both the anode and cathode interfaces. Specifically, the hydrogel electrolyte can not only regulate Zn ions at the Zn anode side but also supply H ions at the PNZ cathode side to avoid the unfavored deposition of zinc sulfate hydroxides. Benefiting from the unique one-gel-for-two-electrodes strategy, the dendrite-free and side reaction-suppressed aqueous Zn||PNZ cells are developed with a high specific capacity (311 mAh g, 99% utilization of the theoretical capacity) and a long cycle life (over 1500 cycles within 2 months). This study proposes a facile and low-cost electrolyte strategy for stabilizing AZBs.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/adma.202411997 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ultrafast enzyme-responsive hydrogel for real-time assessment and treatment optimization in infected wounds.
J Nanobiotechnology
January 2025
Department of Laboratory Medicine Center, The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Guangzhou Medical University, Qingyuan, Guangdong, China.
Monitoring wound infection and providing appropriate treatment are crucial for achieving favorable outcomes. However, the time-consuming nature of laboratory culture tests may delay timely intervention. To tackle this challenge, a simple yet effective HDG hydrogel, composed of hydrogen peroxide (H₂O₂), dopamine, and GelMA polymer, is developed for the ultrafast detection and treatment of Staphylococcus aureus (SA) infections.
View Article and Find Full Text PDFFe, N-CQDs triggered the fabrication of alginate encapsulated g-CN hydrogel for efficient photocatalytic activation of PMS and antibiotic degradation.
Carbohydr Polym
March 2025
School of Environmental and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China. Electronic address:
Carbon dots (CDs) mediated g-CN (CN) is a promising visible-light-driven semiconductor in catalyzing peroxymonosulfate (PMS) for aqueous contaminants remediation. However, the poor dispersibility of powered catalyst and its challenging recyclability impede their broader application. Herein, we embedded FeN bridge within the g-CN framework and immobilized g-CN gel beads (CA/FNCCN) through a 3D cross-linking process with sodium alginate.
View Article and Find Full Text PDFAn injectable in situ-forming hydrogel with self-activating genipin-chitosan (GpCS) cross-linking and an O/Ca self-supplying capability for wound healing and rapid hemostasis.
Carbohydr Polym
March 2025
Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Department of Biochemistry and Molecular Cell Biology, School of Medicine, College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; International Ph.D. Program in Cell Therapy and Regenerative Medicine, College of Medicine, Taipei Medical University, Taipei 11031, Taiwan; Graduate Institute of Nanomedicine and Medical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei 11031, Taiwan. Electronic address:
Severe traumatic bleeding and chronic diabetic wounds require rapid hemostasis and multifunctional dressings, which remain particularly challenging, especially for non-compressible trauma and irregular wounds with dysregulated microenvironments. Chitosan (CS) can be easily cross-linked with genipin to form GpCS hydrogels. However, developing injectable GpCS hydrogels for biomedical applications faces challenges, particularly in enhancing rapid gel formation and optimizing physical properties.
View Article and Find Full Text PDFA flexible, antifreezing, and long-term stable cellulose ionic conductive hydrogel via one-step preparation for flexible electronic sensors.
Carbohydr Polym
March 2025
Key Laboratory of Thorium Energy, Shanghai Institute of Applied Physics, Chinese Academy of Science, No. 2019 Jialuo Road, Shanghai 201800, China.
Ionic conductive hydrogels have attracted great attention due to their good flexibility and conductivity in flexible electronic devices. However, because of the icing and water loss problems, the compatibility issue between the mechanical properties and conductivity of hydrogel electrolytes over a wide temperature range remains extremely challenging to achieve. Although, antifreezing/water-retaining additives could alleviate these problems, the reduced performance and complex preparation methods seriously limit their development.
View Article and Find Full Text PDFNanoscale self-assembly and water retention properties of silk fibroin-riboflavin hydrogel.
J Chem Phys
January 2025
Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, Telangana, India.
Silk-fibroin hydrogels have gained considerable attention in recent years for their versatile biomedical applications. The physical properties of a complex hydrogel, comprising silk fibroin and riboflavin, surpass those of the silk fibroin-hydrogel without additives. This study investigates silk fibroin-riboflavin (silk-RIB) hydrogel at the atomistic level to uncover molecular structures and chemical characteristics specific to silk fibroin and riboflavin molecules in an aqueous medium.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!