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DESIGN OF A MICRO DIRECT METHANOL FUEL CELL GiDMFC)

机译:微型直接甲醇燃料电池的设计(GiDMFC)

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摘要

Recently, there has been increased interest in the development of a small-sized direct methanol fuel cell (DMFC) for low-power applications. In this paper, the design of a self-activated DMFC stack is presented. Gravitational and capillary forces feed the anode side liquid methanol solution. On the cathode side, air is supplied by thermal and solutal buoyancy forces. Based upon experimental results for a larger test cell, and calculated flow velocities for the small-cell design, the fuel and oxidizer supply rates should be adequate for acceptable performance. The entire DMFC is therefore a pump-less operation and self-activated by electrochemical reactions. At 1 cm~3 total volume, the DMFC is expected to provide a power density around 1 W/cm~3, with a range of output of 10V, 0.1A to 1 V, 1A depending on the arrangement of individual cell connections.
机译:最近,人们对开发用于低功率应用的小型直接甲醇燃料电池(DMFC)的兴趣日益浓厚。在本文中,提出了一种自激活DMFC堆栈的设计。重力和毛细力将阳极侧的液态甲醇溶液送入。在阴极侧,空气通过热浮力和稀释浮力供应。根据大型测试电池的实验结果以及小电池设计的计算流速,燃料和氧化剂的供应速率应足以满足可接受的性能要求。因此,整个DMFC无需泵操作,并且可以通过电化学反应自动激活。在总体积为1 cm〜3的情况下,DMFC有望提供大约1 W / cm〜3的功率密度,其输出范围为10V,0.1A至1V,1A,具体取决于单个电池连接的布置。

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