Patent ID: 8227129
Filing Date: 2012-07-24
Classification: B82Y,H01M,Y02E

Abstract:
1. A passive micro fuel cell comprising: a fuel tank containing a methanol solution therein; a waste tank; an anode plate having a first surface and a second surface opposite said first surface, said anode plate horizontally disposed adjacent to said fuel tank, said anode plate horizontally disposed adjacent to said waste tank, said waste tank disposed opposite to said fuel tank, said anode plate having at least one delivery micro-channel and at least one upper oxidation reaction room and at least one exhaust hole and at least one waste liquid micro-channel, the delivery micro-channel connected to said fuel tank so as to draw said methanol solution from said fuel tank and connected to the upper oxidation reaction room through branch channels, said branch channels being aligned in parallel, the delivery micro-channel being perpendicular to said branch channels, the waste liquid micro-channel disposed lower than the delivery micro-channel and the branch channels, the delivery micro-channel being suitable for delivering said methanol solution in a liquid phase to the upper oxidation reaction room, the upper oxidation reaction room suitable for carrying out an oxidation reaction therein, the exhaust hole connected to the upper oxidation reaction room and reaching said second surface, the exhaust hole suitable for venting a gas produced after the oxidation reaction of the methanol solution, the delivery micro-channel having a longitudinal direction that is perpendicular to a longitudinal direction of the exhaust hole; a reaction plate having a plurality of oxidation reaction holes and a plurality of reduction reaction holes and a porous membrane layer, said reaction plate being directly stacked on said second surface of said anode plate and on said fuel tank, said plurality of reduction reaction holes positioned opposite said plurality of oxidation reaction holes, said porous membrane layer interposed between said plurality of oxidation reaction holes and said plurality of reduction reaction holes, said plurality of oxidation reaction holes being adjacent said anode plate, said plurality of oxidation reaction holes having a plurality of carbon nanotubes and catalysts therein, said plurality of reduction reaction holes having a plurality of carbon nanotubes and catalysts therein; and a cathode plate having at least one air inlet and at least one lower reaction room and at least one water exhaust micro-channel, the lower reaction room being adjacent to said plurality of reduction reaction holes and connected to the air inlet, the water exhaust micro-channel connected to the lower reaction room so as to drain water produced from a reduction reaction.