Patent ID: 6689502
Filing Date: 2004-02-10
Classification: H01M,Y02E

Abstract:
A monopolar cell pack for a direct methanol fuel cell comprising:an upper plate and a lower plate spaced a predetermined distance apart from each other; an ion exchange membrane provided between the upper plate and the lower plate, having a first surface and a second surface corresponding to the first surface and having a plurality of single cell regions on the first and second surfaces; a plurality of first anodes installed in each single cell region on the first surface of the ion exchange membrane and a plurality of first cathodes disposed in each single cell region adjacent to each of the anodes; a plurality of second cathodes installed in each single cell region on the second surface of the ion exchange membrane, the second cathodes corresponding to the first anodes, and a plurality of second anodes corresponding to the first cathodes; first and second anode current collectors installed on the first and second anodes and each having a fuel passage region; first and second cathode current collectors installed on the first and second cathodes and each having an air passage region; a plurality of first conductive portions electrically connecting the first anode and cathode adjacent to each other on the first surface of the ion exchange membrane; and a plurality of second conductive portions electrically connecting the second anode and cathode adjacent to each other on the second surface of the ion exchange membrane to electrically connect in series cells provided in the single cell regions.