Synthesis, characterization, and ionic conductivity of electrospun organic–inorganic hybrid gel electrolytes

Abstract

In this work, we described the synthesis of organic–inorganic hybrid gel electrolytes combining electrospinning, sol–gel, and ultraviolet (UV) curing techniques in order to investigate their ionic conductivity properties. First, 3‐glycidyloxypropyl trimethoxysilane modified polyamic acid and alkoxysilane functional poly(dimethyl siloxane) were electrospun together. Then, the following thermal imidization, the obtained fiber was cured in the UV curable gel formulation. To improve the interaction between fiber and gel matrix, 3‐(trimethoxysilyl)propyl methacrylate was partly hydrolyzed and then used as a bifunctional crosslinker. Finally, the membrane was soaked into 0.5 M LiFP6 salt solution to obtain organic–inorganic hybrid gel electrolytes. The chemical structure, ionic conductivity, and range of electrochemical stability window of the photocured nanocomposite electrolytes were investigated by using FTIR, thermogravimetric analysis, differential scanning calorimetry, electrochemical impedance spectroscopy, linear sweep voltammetry, and SEM analysis. The acquired results from experiments indicate that a convenient nanocomposite electrolyte for lithium‐ion batteries with high electrolyte (Li salt) uptake, adequate conductivity (1.02 × 10−3 S cm−1) at ambient temperature and electrochemically stable between 1 and 6 V had been prepared. POLYM. ENG. SCI., 60:619–629, 2020. © 2019 Society of Plastics Engineers

Organosilicon‐Based Functional Electrolytes for High‐Performance Lithium Batteries

“…[ 85–87 ] Besides, siloxanes have been adopted as a bridge for 3D cross‐linked gel polymer electrolytes to increase the ion mobility by increasing the amorphous area. [ 88–90 ] In short, micromolecular silane and siloxane are competitive alternatives for liquid electrolytes due to their own characteristics.…”

Construction of Symmetric Mo/S/Ag Cluster Complexes from a Dinuclear Molybdnum Precursor [nPr4N]2[(edt)2Mo2O2(µ-S)2] (edt = -SCH2CH2S-)

“…Organic-inorganic composites can generate a variety of new metal clusters [1,2], which have potential applications in catalysis [3,4], conductivity [5,6], adsorption [7] and other elds. Polynuclear metal coordination polymers are more stable than monometallic-centered complexes and thus have a promising future [8].…”

Pure hybrid nanofibers made of 4,4′-bis(triethoxysilyl)-1,1′-biphenyl and the way of their production

“…They also need to be prepared with the presence of cationic surfactants [15][16][17] and/or various types of gelators [18,19]. According to the literature, hybrid organic-inorganic nanofibers may be formed from various types of organosilanes [20][21][22], particularly from their bridged organo-mono-silylated analogs with the support of organic polymers, which often remain inside the organosilane framework after their preparation via an electrospinning technique [21,[23][24][25]. Mentioned types of hybrid nanofibers are tested for various applications such as water/air filtration [26,27], optoelectronics and sensors [28,29], energetics [30], medicine [31], and/or catalysis [32].…”