| 摘要 |
An air cathode having multiple layered structure formed by at least a layer of base material, two sintered diffusion layers and a sintered activation layer in laminating shape wherein the base material is as the electric current collector which is made of metal wire net or metal foam net carrying at least two sintered diffusion layers made of hydrophobic carbon material by sintering attached to upper and bottom side in laminating shape; additionally, one of the sintered diffusion layer on the base material carries at least one sintered activation layer which is made of hydrophilic carbon material carrying transition metal oxide catalyst; the air cathode shall be used as a cathode for Zn/Air cell, Fuel Cell or electric capacitor particularly to prevent electrolytic solution from being affected by the environment air outside the Zn/Air cell and to enable the Zn/Air cell under dry environment condition to maintain a stable electric property for a long period of time.
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