TY - JOUR
AU1 - Park, Seon Min
AU2 - Choi, U Hyeok
AB - Gel polymer electrolytes (GPEs) have been intensively researched due to their good electrochemical and mechanical stabilities, compared to liquid electrolytes showing safety issues. Here, we prepare lithium-ion conducting GPEs via dual cross-linking of lithium acrylate (LiA), vinyl silica nanoparticle (VSNP), and lithium alginate (LiAlg). The P(LiA)-VSNP/LiAlg-based GPE has high stretchability, flexibility, and good self-recovery ability. The introduction of VSNP into GPE achieves high room temperature ionic conductivity of ~ 10–2 S/cm. Furthermore, the addition of LiAlg enhances the GPE mechanical property due to physical cross-linking between LiAlg and LiA chains, thereby showing high storage modulus of G′\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${G}^{^{\prime}}$$\end{document}–105 Pa. Consequently, we fabricate flexible supercapacitors based on the as-prepared GPE and activated carbon electrodes. This VSNP-containing GPE-based supercapacitor shows a higher capacitance (Cs\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${C}_{s}$$\end{document} = 4.5 F/g) than the VSNP-free GPE-based supercapacitor (Cs\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${C}_{s}$$\end{document} = 2.1 F/g) at the scan rate of 5 mV/s. This study can offer a new perspective for developing tough, flexible, and high-conducting electrolytes that can simultaneously exhibit high electrochemical properties for energy storage devices.Graphical abstractDual-crosslinking gel polymer electrolytes (GPEs) have relatively high ionic conductivity of ~ 3 × 10−2 S/cm and good mechanical strength of G′\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${G}^{^{\prime}}$$\end{document} ~ 3 × 104 Pa at room temperature. In addition, the resultant GPE-based solid-state supercapacitors show reasonable electrochemical properties. These results provide a novel possibility for developing new electrolyte materials in the field of energy storage devices.[graphic not available: see fulltext]
TI - Highly stretchable and conductive hybrid gel polymer electrolytes enabled by a dual cross-linking approach
JF - Macromolecular Research
DO - 10.1007/s13233-023-00120-1
DA - 2023-05-01
UR - https://www.deepdyve.com/lp/springer-journals/highly-stretchable-and-conductive-hybrid-gel-polymer-electrolytes-QiVmcPX3Rq
SP - 499
EP - 509
VL - 31
IS - 5
DP - DeepDyve
ER -