Polyethylene glycol diacrylate (PEGDA), as a derivative of polyethylene glycol, is an important biocompatible and degradable environmentally friendly polymer material that can withstand heat, light and radiation. , using a certain amount of initiator to initiate the polymerization reaction. PEGDA has been widely used in polymer coatings, flexible devices, biomedicine and other fields.
CN202010304351.7 reports a preparation method of polyethylene glycol diacrylate-based gel electrolyte, which belongs to the field of lithium battery materials. This method uses polyethylene glycol diacrylate directly as the polymer matrix material of the gel electrolyte, which solves the problems of high production cost, environmental pollution and low ionic conductivity of traditional gel electrolytes. In this method, after mixing polyethylene glycol diacrylate monomer and liquid electrolyte evenly, cellulose and initiator are added to continue stirring to obtain a gel electrolyte precursor solution, and finally the gel electrolyte precursor solution is subjected to thermal polymerization to obtain polyethylene Glycol diacrylate based gel electrolyte. The invention provides a new direction for the use of polyethylene glycol diacrylate in gel electrolytes, and the prepared gel electrolyte has excellent electrochemical properties and is particularly suitable for large-scale production of gel electrolytes for lithium batteries.
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