Cartilage-inspired rapid in situ fabrication of seamless interlocked electrolyte–electrode interface for high-performance flexible supercapacitors

文献情報

出版日 2023-10-17

DOI 10.1039/D3TA04985J

インパクトファクター 12.732

著者

Yu Guo, Yinghui Shang, Bingqian Jiao, Yuting Guo, Yujing Tang, Saiji Shen, Dongbei Wu, Xia Wang, Wenju Li, Qigang Wang

原文を見る

要旨

Despite gel electrolytes' high ionic conductivity and appreciable mechanical softness making them promising candidates for flexible electronic devices (FEDs), preparing gel electrolytes which seamlessly interface with electrodes is still challenging, especially via rapid gelation. Inspired by cartilage, a mechanically interlocked and hydrogen bonded electrolyte–electrode interface (MHEEI) generated using an ultrafast gelation process via in situ interfacial polymerization of gelatin macromolecules and acrylamide monomers hybrid fluid is reported. A nanoporous carbon (NC) electrode favorable for polymer matrix embedding is employed to lock into the in situ gel electrolyte through a mechanical interlocking structure. Polyacrylamide chains inside the nanoporous electrode are strongly connected with gelatin chains via intra-intermolecular hydrogen bond interactions. Their synergy simultaneously imparts low contact resistance (1 Ω), high ionic conductivity (55.9 mS cm−1) and interfacial toughness of 16 J m−2 at MHEEI, which is 6.4 times greater than that obtained by a physical stacking approach. The NC electrode with MHEEI thus exhibits a specific capacitance of 336 F g−1 (at 8 A g−1), about 12 times greater than that of the electrode with MEEI. Additionally, an interrupted electronic circuit is instantly restored via ultrafast construction of interlocking layers. This concept can be demonstrated in other gel systems, providing generalized design principles for the ultrafast construction of interlocking structures for FEDs.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment

Cartilage-inspired rapid in situ fabrication of seamless interlocked electrolyte–electrode interface for high-performance flexible supercapacitors

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