Quoc Chinh Tran Van-Tien Bui Van-Duong Dao Lee, Joong-Kee Choi, Ho-Suk 2024-01-20T04:01:52Z 2024-01-20T04:01:52Z 2021-09-05 2016-06-29 1944-8244 https://pubs.kist.re.kr/handle/201004/123942 We first report an innovative method, which we refer to as interfacial liquid plasma polymerization, to chemically cross-link ionic liquids (ILs). By this method, a series of all-solid state, free-standing polymer electrolytes is successfully fabricated where ILs are used as building blocks and ethylene oxide-based surfactants are employed as an assisted-cross-linking agent. The thickness of the films is controlled by the plasma exposure time or the ratio of surfactant to ILs. The chemical structure and properties of the polymer electrolyte are characterized by scanning electron microscopy (SEM), Fourier transformation infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR) spectroscopy, X-ray photoelectron spectroscopy (XPS), differential scanning calorimetry (DSC), and electrochemical impedance spectroscopy (EIS). Importantly, the underlying polymerization mechanism of the cross-linked IL-based polymer electrolyte is studied to show that fluoroborate or halide anions of ILs together with the aid of a small amount of surfactants having ethylene oxide groups are necessary to form cross-linked network structures of the polymer electrolyte. The ionic conductivity of the obtained polymer electrolyte is 2.28 X 10(-3) S.cm(-1), which is a relatively high value for solid polymer electrolytes synthesized at room temperature. This study can serve as a cornerstone for developing all-solid state polymer electrolytes with promising properties for next-generation electrochemical devices. English American Chemical Society LITHIUM BATTERIES IMPEDANCE SPECTROSCOPY SOLID ELECTROLYTES SPIN-RESONANCE TRITON X-100 CONDUCTIVITY TEMPERATURE NANOPARTICLES STABILITY PRESSURE Ionic Liquid-Based Polymer Electrolytes via Surfactant-Assisted Polymerization at the Plasma-Liquid Interface Article 10.1021/acsami.6b04947 1 ACS Applied Materials & Interfaces, v.8, no.25, pp.16125 - 16135 ACS Applied Materials & Interfaces 8 25 16125 16135 scie scopus 000378984800030 2-s2.0-84976615460 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article LITHIUM BATTERIES IMPEDANCE SPECTROSCOPY SOLID ELECTROLYTES SPIN-RESONANCE TRITON X-100 CONDUCTIVITY TEMPERATURE NANOPARTICLES STABILITY PRESSURE liquid plasma polymerization ionic liquid ion conductivity surfactant Triton X100