초록

The present invention relates to a support for a planar fuel cell core, produced using a material permeable to the fuel of the cell, and sealed over at least one of its outer faces.

대표청구항 ▼

1. A planar fuel cell comprising: an electrically conductive, planar support comprising a homogeneous structure made of a thermoplastic polymeric material which is permeable to the fuel of the cell at least in a permeable area for diffusing the fuel, and which is impermeable in a sealed area on at l

1. A planar fuel cell comprising: an electrically conductive, planar support comprising a homogeneous structure made of a thermoplastic polymeric material which is permeable to the fuel of the cell at least in a permeable area for diffusing the fuel, and which is impermeable in a sealed area on at least one outer face of the support, said impermeable sealed area being defined by a dense portion of the homogeneous structure consisting of the same thermoplastic polymeric material as that of said permeable area for diffusing the fuel; anda plurality of cell cores stacked and positioned on an outer face of the support in a non-sealed area;wherein the sealed area of the support is sealed after the cell cores are stacked on the non-sealed area of the support; andwherein the sealed area is sealed by exposing the surfaces of the support to be sealed to a temperature above a softening temperature of the thermoplastic polymeric material. 2. The planar fuel cell as claimed in claim 1, wherein the permeable area of the support is provided with channels. 3. The planar fuel cell as claimed in claim 1, wherein the permeable area of the support is porous. 4. The planar fuel cell as claimed in claim 3, wherein a porosity rate of the permeable area of the support is between 40 and 80%. 5. The planar fuel cell as claimed in claim 3, wherein the permeable area of the support has a pore size between 0.5 and 40 μm. 6. The planar fuel cell as claimed in claim 1, wherein the support has a thickness between 1 and 5 mm. 7. The planar fuel cell as claimed in claim 1, wherein the thermoplastic polymer is polyethylene. 8. The planar fuel cell as claimed in claim 1, wherein the thermoplastic polymer is vinylidene polyfluoride (PVDF).