The effect of compression on the solid polymer elecrolytes: Consideration of specific interaction

A thermodynamic model taking into account of the specific interaction betwe en polymer and salt is proposed. We employed the theory of melting point de pression and the generalized lattice-fluid (GLF) model to interpret the liq uidus curves in the resulting phase diagram and to describe the change of l iquidus curves and an eutectic point at various pressure. The quantitive de scription according to the proposed model is in good agreement with the exp erimentally observed transition temperature of a given system. Results show that an eutectic point moves toward higher T-(1) and lower weight fraction of salt with increasing pressure.