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US 7,112,380 B2Granted
Method and apparatus for the storage and redistribution of electrical energy
AssigneeCasale Chemicals S.A.
InventorGiancarlo Sioli
Life of this patent
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AssigneeCasale Chemicals S.A.
InventorGiancarlo Sioli
Estimating the term…
A method of storage and redistribution of electrical energy comprising the steps of: producing hydrogen and oxygen through water electrolysis in an electrolyzer (1) operating under pressure; collecting the hydrogen and oxygen so obtained in respective pressurized tanks (3, 5); reconverting into water and electrical energy hydrogen and oxygen, through an electrochemical reaction of the latter in a fuel cell (9) fed from the tanks (3, 5), distinguishes itself by the fact that in the electrolyzer (1) and in the fuel cell (9) a same liquid phase is used and by the fact that the water produced in the fuel cell (9) by the hydrogen and oxygen reconversion step, is collected in the respective liquid phase and transferred together with the liquid phase to the electrolyzer (1) in order to undergo electrolysis.
Method of storage and redistribution of electrical energy comprising the steps of:
Apparatus for the storage and redistribution of electrical energy, wherein it comprises a water electrolyzer (1) provided with a respective liquid phase and operating under a predetermined pressure, pressurized tanks (3, 5) said hydrogen and oxygen pressurized tanks (3, 5) and said elctrolyzer (1) all operating at substantially the same operating pressure in direct fluid communication with said electrolyzer (1) in order to directly receive from it hydrogen and oxygen flows, respectively, a fuel cell (9), provided with a respective liquid phase and operating under a predetermined pressure, said cell (9) having anodic and cathodic compartments in direct fluid communication with said hydrogen and oxygen tanks (3, 5) in order to exclusively receive said hydrogen and said oxygen produced in said electrolyzer (1), respectively, and in direct fluid communication with said electrolyzer (1), said electrolyzer (1) and said cell (9) using a single continuous liquid phase which is continuously circulated between the electrolyzer and the fuel cell.
Dependencies are inferred from the claim text.