Research On Novel Cathode Structure Of Air-Breathing Micro Direct Methanol Fuel Cell
In this paper,a novel cathode current collector with “cross air-breathing configuration is purposed to improve the performance of air-breathing micro-direct methanol fuel cell (μ-DMFC).The simulation results show that the “cross cathode structure effectively improves the efficiency of oxygen mass transport and makes oxygen distribute uniformly which lead to high power density.The novel cathode structure can promote rate of water evaporation which suspend flooding in the cathode and the end of channel connects with atmosphere result in liquid state water on the gas diffusion layer discharges outside directly.The air-breathing μDMFCs with “cross cathode structure are fabricated using micro-electro-mechanical systems (MEMS) technologies and are tested at room temperature.The experimental results show that the “cross cathode μ-DMFC exhibits significantly higher performance than the conventional perforated cathode μ-DMFC,showing the peak power density is 17.1 mWcm-2.Moreover,during the long-term operation of the “cross cathode μ-DMFC,there is no water flooding on the cathode surface.
Huichao Deng Yufeng Zhang Yang Li Xuelin Zhang Xiaowei Liu
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-7
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）