Engineering flexible and self-healing batteries is significant for wearable electronics. Here, we develop a flexible self-healing Zn-ion battery with a ZnVO(OH)·2HO cathode working with a polyvinyl alcohol hydrogel electrolyte. The battery achieves a high capacity and robust structure during switching and self-healing, and keeps a stable potential after cutting/healing several times. After being bent at 30°, 60°, 90°, 120° and 150°, the capacities remain stable, and the battery delivers 78.6 mA h g when repeatedly folding at 90°, displaying the potential for various applications such as foldable cell phones.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d2cc02561b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Supramolecular Ionic Gels for Stretchable Electronics and Future Directions.
ACS Mater Au
January 2025
Department of Electrical and Electronic Engineering, Kyushu Institute of Technology, 1-1 Sensuicho, Tobataku, Kitakyushu, Fukuoka 804-8550, Japan.
Ionic gels (IGs), ionic liquids (ILs) dispersed in polymers, exhibit extremely low vapor pressure, electrochemical and thermal stability, and excellent mechanical characteristics; therefore, they are used for fabricating stretchable sensors, electrochemical transistors, and energy storage devices. Although such characteristics are promising for flexible and stretchable electronics, the mechanical stress-induced ruptured covalent bonds forming polymer networks cannot recover owing to the irreversible interaction between the bonds. Physical cross-linking via noncovalent bonds enables the interaction of polymers and ILs to form supramolecular IGs (SIGs), which exhibit favorable characteristics for wearable devices that conventional IGs with noncovalent bonds cannot achieve.
View Article and Find Full Text PDFRing-Opening Polymerization of Surface Ligands Enables Versatile Optical Patterning and Form Factor Flexibility in Quantum Dot Assemblies.
Adv Mater
January 2025
Division of Materials Science and Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
The evolution of display technologies is rapidly transitioning from traditional screens to advanced augmented reality (AR)/virtual reality (VR) and wearable devices, where quantum dots (QDs) serve as crucial pure-color emitters. While solution processing efficiently forms QD solids, challenges emerge in subsequent stages, such as layer deposition, etching, and solvent immersion. These issues become especially pronounced when developing diverse form factors, necessitating innovative patterning methods that are both reversible and sustainable.
View Article and Find Full Text PDFAdvancing the design of conductive composite cryogels based on hydroxypropyl cellulose derivatives for improving the compressibility and anti-freezing properties.
Int J Biol Macromol
January 2025
"Petru Poni" Institute of Macromolecular Chemistry of Romanian Academy, 41 A Gr. Ghica Voda Alley, 700487, Iasi, Romania. Electronic address:
Conductive hydrogels are an appealing class of "smart" materials with great application potential, as they combine the stimuli-responsiveness of hydrogels with the conductivity of magnetic fillers. However, fabricating multifunctional conductive hydrogels that simultaneously exhibit conductivity, self-healing, adhesiveness, and anti-freezing properties remains a significant challenge. To address this issue, we introduce here a freeze-thawing approach to develop versatile, multiresponsive composite cryogels able to preserve their features under low-temperature conditions.
View Article and Find Full Text PDFDevelopment and Applications in Intelligent Sports of Hydrogel-Based Triboelectric Nanogenerators.
Materials (Basel)
December 2024
Department of Public Teaching, Qilu Medical University, Zibo 255300, China.
As an emerging self-powered technology, triboelectric nanogenerators have the characteristics of a simple structure, high conversion efficiency, diverse material selection, and stable output. Hydrogels have the advantages of flexibility, extensibility, and shape adaptability, which means that hydrogel-based triboelectric nanogenerators (H-TENGs) have high flexibility, self-healing abilities, conductivity, and fatigue resistance. They can still operate normally in scenarios involving bending, pressing, stretching, and folding.
View Article and Find Full Text PDFSelf-Healable, Antimicrobial and Conductive Hydrogels Based on Dynamic Covalent Bonding with Silver Nanoparticles for Flexible Sensor.
Polymers (Basel)
December 2024
Chongqing Academy of Metrology and Quality Inspection, Chongqing 401120, China.
Dynamic hydrogels have attracted considerable attention in the application of flexible electronics, as they possess injectable and self-healing abilities. However, it is still a challenge to combine high conductivity and antibacterial properties into dynamic hydrogels. In this work, we fabricated a type of dynamic hydrogel based on acylhydrazone bonds between thermo-responsive copolymer and silver nanoparticles (AgNPs) functionalized with hydrazide groups.
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!