(EP824763-A1)      An electrolyte compsn. comprises: (i) a salt; disposed in (ii) a matrix comprising the reaction prod. of (a) a diene-functional alkylene oxide; (b) a difunctional thiol; and/or (c) a multifunctional reactant having a functionality greater than 2 comprising a multi-ene-functional thiol. The relative amts. of (a)-(c) are such that (I) the compsn., when formed into a shape, has sufficient mechanical integrity to retain the shape under operating conditions; and (II) the compsn. exhibits an ionic conductivity of at least 1x10-6 S/cm when measured in the absence of solvent at 25 C. Also claimed is a method of preparing the above electrolyte compsn..    USE -   Compsns. are used for prim. and sec. batteries (Li batteries) and other applications, e.g. sensor, capacitor and electrochromic device (optical shutter or display).    ADVANTAGE -   Polymers form lightweight solid (or gelled) films with mechanical integrity but have higher conductivity under ambient conditions. Reactants provide sufficient tack level to adhere electrolyte and substrate.    (JP11506561-W)      An electrolyte compsn. comprises: (i) a salt; disposed in (ii) a matrix comprising the reaction prod. of (a) a diene-functional alkylene oxide; (b) a difunctional thiol; and/or (c) a multifunctional reactant having a functionality greater than 2 comprising a multi-ene-functional thiol. The relative amts. of (a)-(c) are such that (I) the compsn., when formed into a shape, has sufficient mechanical integrity to retain the shape under operating conditions; and (II) the compsn. exhibits an ionic conductivity of at least 1x10-6 S/cm when measured in the absence of solvent at 25 C. Also claimed is a method of preparing the above electrolyte compsn..    USE -   Compsns. are used for prim. and sec. batteries (Li batteries) and other applications, e.g. sensor, capacitor and electrochromic device (optical shutter or display).    ADVANTAGE -   Polymers form lightweight solid (or gelled) films with mechanical integrity but have higher conductivity under ambient conditions. Reactants provide sufficient tack level to adhere electrolyte and substrate.    (EP824763-B1)      An electrolyte compsn. comprises: (i) a salt; disposed in (ii) a matrix comprising the reaction prod. of (a) a diene-functional alkylene oxide; (b) a difunctional thiol; and/or (c) a multifunctional reactant having a functionality greater than 2 comprising a multi-ene-functional thiol. The relative amts. of (a)-(c) are such that (I) the compsn., when formed into a shape, has sufficient mechanical integrity to retain the shape under operating conditions; and (II) the compsn. exhibits an ionic conductivity of at least 1x10-6 S/cm when measured in the absence of solvent at 25 C. Also claimed is a method of preparing the above electrolyte compsn..    USE -   Compsns. are used for prim. and sec. batteries (Li batteries) and other applications, e.g. sensor, capacitor and electrochromic device (optical shutter or display).    ADVANTAGE -   Polymers form lightweight solid (or gelled) films with mechanical integrity but have higher conductivity under ambient conditions. Reactants provide sufficient tack level to adhere electrolyte and substrate.