A novel 'inorganic salt-polymer salt' hybrid system as a solid state electrolyte

Poly{2-methacryloyl-3-[ω-methoxyoligo(oxyethylene)]propanesulfonate lithium} (PMMOEPLi), a new kind of polymer salt intended for “inorganic salt-polymer salt” hybrid systems, was synthesized. This polymer salt has high flexibility and high polarity. Upon addition of PMMOEPLi to LiClO3 based electrolytes, ionic conductivities as high as 10−3 S/cm were obtained at ambient temperature. In the electrolyte studied Li+ dominates the conductivity, making this material a good candidate for application in lithium rechargeable batteries.