OVERVIEW OF MICRO-MANUFACTURED –BASED MICRO DIRECT METHANOL FUEL CELL DEVELOPMENT FOR PORTABLE APPLICATIONS
With increasing demand for portable electronics devices, on-board chips, sensors, actuators in microelectronics, medical, and wireless telecommunication industries, etc., a small-power (milliwatt or subwatt range) alternative power source to lithium ion battery is required. Micro-scale fuel cell, especially micro Direct methanol fuel cell (μDMFC) has attracted attention as a small-size and portable power source,due to the fuel’s capability to deliver high power density per volume and weight. The miniaturization of μDMFC requires specialmanufacturing techniques different from conventional machining methods in macro-DMFC, which can fabricate the key components in μDMFC and assembly them together in micro-scale level. Thanks to integrated circuit fabrication and Micro-electro-mechanical –system (MEMS), current approach to developing μDMFC is adoption of Silicon micromachining technologies to creating micro-fluidic channels ( for fuel and gas delivery). The deposition of thin films of exotic materials using semiconductor techniques is applied to make electrodesand current collector.In the paper, an overview of design and microfabrication of μDMFC was performed. The design configuration of the μDMFCs have been summarized andevaluated. The outputs of the designed and microfabricated μDMFC were analyzed and compared. Finally, therequirements for designing and micro-manufacturing thecomponents and system in μDMFC, and packaging are proposed from technical and cost point of view.
Direct Methanol Fuel Cell Micro-Fuel Cell μdmfc Microfabrication of micro-Fuel Cell
Jiusheng Guo
Nanotek Instruments, Inc,714,East monument Ave., Dayton, OH 45402, USA
国际会议
海南三亚
英文
2007-01-10（万方平台首次上网日期，不代表论文的发表时间）