로봇용 자연급기형 연료전지의 최적구조에 관한 연구
Study on optimum structure of free-breathing Polymer Electrolyte Membrane Fuel Cell (PEMFC) for robotic application
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Abstract
The performance of free-breathing polymer electrolyte membrane fuel cell (PEMFC) was studied experimentally and the effect of cathode separator structure on the cell performance was investigated. Cathode separators were used for the cell with 18cm2 active area. In channel type, the contact resistance is low, and the nature convection, which is strongly affected by the cross-sectional shape of cathode separator channel, is dominant in a cell performance. The maximum power density with 18cm2 active area is 105㎽/cm2 using the 10㎜ depth and 2㎜ width channel. A computational analysis was optimum structure of free-breathing channel type PEMFC for robotic application.