NOVELTY - Generating (M1) free oxygen from an oxygen generating liquid, involves introducing an oxygen generating liquid (275) containing a high concentration lithium chlorate aqueous solution, into a vessel (11); heating the vessel to boil water out of the liquid and vessel; further heating the lithium chlorate remaining in the vessel to a decomposition temperature sufficient to thermally decompose the lithium chlorate to generate free oxygen and lithium chloride product from the lithium chlorate; and rinsing the lithium chloride solid from the vessel with a rinse liquid (270).    USE - For generating free oxygen used in power producing combustion system, fuel cell, and human consumption (claimed).    ADVANTAGE - The method provides improved oxygen storage and generation having high volumetric and gravimetric oxygen storage density; provides breathable oxygen; and has good safety characteristics.    DETAILED DESCRIPTION - Generating (M1) free oxygen from an oxygen generating liquid, involves introducing an oxygen generating liquid (275) into a vessel (11), where the oxygen generating liquid comprises a high concentration lithium chlorate aqueous solution; heating the vessel to boil water out of the oxygen generating liquid and the vessel, where lithium chlorate remains in the vessel; further heating the lithium chlorate in the vessel to a decomposition temperature sufficient to thermally decompose the lithium chlorate to generate free oxygen and lithium chloride product from the lithium chlorate, where the lithium chloride product remains in the vessel; and rinsing the lithium chloride solid from the vessel with a rinse liquid (270) to prepare the vessel for another introduction of oxygen containing liquid. INDEPENDENT CLAIMS are included for the following:    (1) oxygen storage method involving providing an aqueous solution of lithium chlorate (70-96 wt.%) in water, where the aqueous solution exists in the form of a solution with a lithium chlorate concentration below the saturation concentration, a saturated solution with a lithium chlorate concentration at the saturation concentration, or a saturated solution with a lithium chlorate concentration at the saturation concentration and lithium chlorate solid, where the lithium chlorate solid is separated by gravity into a bottom region separate from the saturated solution; driving the aqueous solution of lithium chlorate in the storage vessel to an unsaturated solution by heating the aqueous solution in the storage vessel to a temperature of at least 10-30 degrees C above a saturation temperature corresponding to the amount of water and lithium chlorate in the storage vessel; or introducing a volume of water to the storage vessel containing the aqueous solution of lithium chlorate, where the volume of water is sufficient to ensure the lithium chlorate concentration is 10-30% below a lithium chlorate saturation concentration at a storage temperature; positioning an outlet from the storage vessel for removal of the aqueous solution at a location above the bottom region where any lithium chlorate solid settles, so that solid lithium chlorate remains in the storage vessel until all is returned to solution by heating or introduction of water; and introducing aqueous solution removed from the storage vessel to a reaction vessel; and    (2) a device for generating oxygen from an oxygen generating liquid, comprising a reaction vessel for holding the oxygen generating liquid; an inlet for introducing the oxygen generating liquid to the reaction vessel; an inlet heater for heating the introduced oxygen generating liquid to an introduction temperature; a reaction heater for removing water from the oxygen generating liquid in the reaction vessel by boiling and heating the remaining oxygen generating material in the reaction vessel to a temperature greater than or equal to a thermal decomposition temperature, to generate oxygen; a pressure vessel having an interior volume that contains the reaction vessel, generated oxygen and boiled water vapor; and a pressure vessel outlet for removing the generated oxygen and boiled water vapor.    DESCRIPTION OF DRAWING(S) - The figure shows oxygen generating method.    Vessel (11)    Rinse liquid (270)    Oxygen generating liquid (275)