Features of electrical conductivity in nanocomposite polymer electrolytes based on polyethylene glycol, LiClO4 and organomodified laponite

We investigated the features of conductivity of polymer electrolytes based on polyethylene glycol, LiClO
₄
and organomodified laponite using the method of impedance spectroscopy. It is shown that the electrical conductivity of PEG-based systems is significantly dependent on the salt content. It is found that the conductivity has an extreme dependence on the LiClO
₄
content. At a salt concentration of Li/O = 1/4, the conductivity of the system is independent of temperature, indicating the formation of ionic aggregates. The introduction of laponite nanoparticles (1%) into the polymer electrolyte leads to an increase in electrical conductivity by reducing the crystallinity and destruction of ionic aggregates. Further increase in the content of the filler reduces the electrical conductivity.