NOVELTY - The non-aqueous solvent electrolyte solution comprises dissociable ionic species such as electrolytes with proton cations, hydroxyl anions or either positively or negatively charged single atoms, or low molecular weight functional groups, where the solution is transported throughout continuous phase of supercritical fluid electrolyte solvent between electrodes. The non-aqueous solvent electrolyte solution further comprises: co-solvents such as organic liquids, inorganic liquids or organic acids and bases that are miscible with the supercritical fluid.    USE - The non-aqueous solvent electrolyte solution is useful for producing an energy storage and production device such as an electrochemical cell or battery, a capacitor and a semi-fuel cell or fuel cell (all claimed).    ADVANTAGE - The non-aqueous solvent electrolyte solution can able to produce a thermodynamically elevated energy state thus sufficient to yield a high energy storage and production device using the electrochemical reactions, has chemical, thermal and galvanic stability, and provides high ionic conductivity throughout the electrode oxidation/reduction reactions thus enabling rapid and efficient ionic transport between electrodes and improving the overall performance of the electrochemical cell or battery, capacitor and fuel cell.    DETAILED DESCRIPTION - The non-aqueous solvent electrolyte solution comprises dissociable ionic species such as electrolytes with proton cations, hydroxyl anions or either positively or negatively charged single atoms, or low molecular weight functional groups, where the solution is transported throughout continuous phase of supercritical fluid electrolyte solvent between electrodes. The non-aqueous solvent electrolyte solution further comprises: co-solvents such as organic liquids, inorganic liquids or organic acids and bases that are miscible with the supercritical fluid and that allow for dissociation and high conductivity of the dissociable ionic species; a conductive solid including solid state conductors or ionic conductive polymers that are swell or gel with the supercritical fluid allowing for dissociation and high conductivity of the ionic species through the supercritical fluid; and ionic species. An INDEPENDENT CLAIM is included for a method of generating thermal nuclear energy by the electrochemical conversion of hydrogen isotopes.    DESCRIPTION OF DRAWING(S) - The diagram shows a discharge voltage profile for an electrochemical cell.