Solid alkaline fuel cell
AssigneeNGK Insulators, Ltd.
InventorsYukihisa Takeuchi, Hirofumi Kan, Toshiyuki Nakamura, Makoto Ohmori
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Abstract
A solid alkaline fuel cell has a cathode that is supplied with an oxidant which contains oxygen, an anode that is supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte that is disposed between the anode and the cathode and that exhibits a hydroxide ion conductivity. The inorganic solid electrolyte enables the permeation of a fuel in an amount that produces carbon dioxide at the cathode of greater than or equal to 0.04 μmol/s·cm2 and less than or equal to 2.5 μmol/s·cm2 per unit surface area of a cathode-side surface.
Claims5
A solid alkaline fuel cell comprising;
- a cathode supplied with an oxidant which contains oxygen, an anode supplied with a fuel which contains hydrogen atoms, and an inorganic solid electrolyte disposed between the anode and the cathode, the inorganic solid electrolyte exhibiting hydroxide ion conductivity, wherein
- the inorganic solid electrolyte enables the permeation of a fuel in an amount that produces carbon dioxide at the cathode of greater than or equal to 0.04 μmol/s·cm2 and less than or equal to 2.5 μmol/s·cm2 per unit surface area of a cathode-side surface and is a layered double hydroxide of the formula [M2+1-xM3+x(OH)2][An−x/n.mH2O], wherein M2+ is a divalent cation, M3+ is a trivalent cation, and An− is an n-valent anion.
Dependencies are inferred from the claim text.