Phase behaviors of solid polymer electrolyte-salt systems: the effect of pressure

A molecular thermodynamic model based on both the theory of melting point d epression and the lattice fluid model is developed to interpret the liquidu s curves in the resulting phase diagram and predict the change of liquidus curve and an eutectic point with various pressures. Quantitative descriptio n according to the proposed model is in good agreement with the experimenta lly observed transition temperature of a given system and shows that an eut ectic point moves toward higher T-m and lower weight fraction of salt with increasing pressure. (C) 2000 Elsevier Science Ltd. All rights reserved.