Patent ID: 7442460

Claim:
A fuel-cell stack comprising a plurality of direct-alcohol fuel cells; each cell having a structure comprising: a first electrode; a second electrode; an electrolyte arranged between the first electrode and the second electrode; means for conducting electrical current to the first electrode and the second electrode; wherein the entire structure of each cell is miniaturized and is made of superimposed layers; wherein the entire structure of each of the plurality of cells of the stack is associated in an irremovable way to a single flexible substrate; wherein a first duct is also associated in an irremovable way to the single flexible substrate, the duct being connected to the plurality of cells for supplying them with fuel, wherein the duct also connects the fuel cells to each other; and wherein a second duct is also associated in an irremovable way to said single flexible substrate, said second duct being connected to the plurality of cells configured to empty water from each cell.