Quasi-solid state Composite Electrolytes of Ionic liquid and Cross-Linking Polymer for High-voltage Supercapacitors

摘要

The present invention relates to a quasi-solid-state flexible ionic liquid and a crosslinked polymer composite electrolyte using hydrogen bonding for high-voltage ultra-high-capacity capacitors, and more particularly, to a polymer electrolyte having a functional group capable of hydrogen bonding such as hydroxy, The cross-linking of the cross-linking polymer makes hydrogen and cross-linking hydrogen of the cross-linking polymer to be hydrogen bond with the anion of the ionic liquid to improve the electrochemical stability, so that it can be usefully used as an electrolyte for a high voltage ultra high capacity capacitor.