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Citation: ZHENG Dan, ZHANG Xi-Gui, ZHANG Kun, YANG Hui, LI Xin-Xin, XIA Bao-Jia. High Performance Air-Breathing MEMS H₂/Air Micro Fuel Cell Based on New Cathode Structure[J]. Chinese Journal of Applied Chemistry, ;2007, 24(6): 723-725. shu

High Performance Air-Breathing MEMS H₂/Air Micro Fuel Cell Based on New Cathode Structure

ZHENG Dan ^a,b ,
ZHANG Xi-Gui ^a ,
ZHANG Kun ^a ,
YANG Hui ^a ,
LI Xin-Xin ^a ,
XIA Bao-Jia ^a,,

1.
a NanoTechnology Laboratory, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050;
2.
b Department of Chemical Engineering Shanghai Institute of Technology, Shanghai

Corresponding author: XIA Bao-Jia,
Received Date: 17 September 2006
Available Online: 20 November 2006
Fund Project: 国家"八六三"计划(2006AA05Z136,2006AA04Z342) (2006AA05Z136,2006AA04Z342)国家自然科学基金(20673136) (20673136)

A new cathode structure with two layers and small channels for air-breathing micro H₂/air proton exchange membrane fuel cell (μPEMFC) was designed and fabricated with the microelectromechanical system (MEMS) technique.The use of such a new cathode not only reduces the volume and mass of the μPEMFC but also promotes the air distribution in cathode,thus making the maximum power density,volume power density and mass power density increased by 35.8%,53.3% and 76.5%,respectively.Moreover,the steady voltage of a μPEMFC with a new cathode at a discharge current density of 0.2 A/cm² is higher than that with an old cathode at a discharge current density of 0.14 A/cm².This investigation provides better insights into the development of air-breathing micro H₂/air proton exchange membrane fuel cells with high performance.
- micro proton exchange membrane fuel cell,
- cathode structure,
- air-breathing,
- MEMS
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High Performance Air-Breathing MEMS H₂/Air Micro Fuel Cell Based on New Cathode Structure