(ZA9708256-A)      An electrolyte comprises a composite of a polymer and a molten salt electrolyte immobilised within the polymer. The composite is stable and ionically conducting ar a temperature substantially equal to the m.pt. of the molten salt electrolyte. Also claimed are: (1) an electrochemical cell (1) comprising a pair of electrodes (2,3) and the above electrolyte; (2) a super-capacitor comprising a pair of conducting electrodes and the above electrolyte; (3) an electrochemical window comprising first and second electrically conducting layers and the above electrolyte in contact with first and second metal oxides coated on respective conducting layers, where a change in potential difference between the conducting layers gives rise to a change in transparency of the metal oxide layers; and (4) an electrochromic display comprising the above electrolyte between first and second electrically conducting layers, where application of a potential difference between the electrically conducting layers causes a change in transparency of the second electrically conducting layer.    USE -   The electrolyte is used for batteries, super-capacitors, electrochromic windows and displays.    ADVANTAGE -   The electrolyte remains stable at elevated temperatures, has good ionic conductivity and the liquid molten salt electrolyte does not leak from the composite.    (EP925615-A1)      An electrolyte comprises a composite of a polymer and a molten salt electrolyte immobilised within the polymer. The composite is stable and ionically conducting ar a temperature substantially equal to the m.pt. of the molten salt electrolyte. Also claimed are: (1) an electrochemical cell (1) comprising a pair of electrodes (2,3) and the above electrolyte; (2) a super-capacitor comprising a pair of conducting electrodes and the above electrolyte; (3) an electrochemical window comprising first and second electrically conducting layers and the above electrolyte in contact with first and second metal oxides coated on respective conducting layers, where a change in potential difference between the conducting layers gives rise to a change in transparency of the metal oxide layers; and (4) an electrochromic display comprising the above electrolyte between first and second electrically conducting layers, where application of a potential difference between the electrically conducting layers causes a change in transparency of the second electrically conducting layer.    USE -   The electrolyte is used for batteries, super-capacitors, electrochromic windows and displays.    ADVANTAGE -   The electrolyte remains stable at elevated temperatures, has good ionic conductivity and the liquid molten salt electrolyte does not leak from the composite.    (US6245847-B1)      An electrolyte comprises a composite of a polymer and a molten salt electrolyte immobilised within the polymer. The composite is stable and ionically conducting ar a temperature substantially equal to the m.pt. of the molten salt electrolyte. Also claimed are: (1) an electrochemical cell (1) comprising a pair of electrodes (2,3) and the above electrolyte; (2) a super-capacitor comprising a pair of conducting electrodes and the above electrolyte; (3) an electrochemical window comprising first and second electrically conducting layers and the above electrolyte in contact with first and second metal oxides coated on respective conducting layers, where a change in potential difference between the conducting layers gives rise to a change in transparency of the metal oxide layers; and (4) an electrochromic display comprising the above electrolyte between first and second electrically conducting layers, where application of a potential difference between the electrically conducting layers causes a change in transparency of the second electrically conducting layer.    USE -   The electrolyte is used for batteries, super-capacitors, electrochromic windows and displays.    ADVANTAGE -   The electrolyte remains stable at elevated temperatures, has good ionic conductivity and the liquid molten salt electrolyte does not leak from the composite.