Lee Chi-Yuan, Weng Fang-Bor, Kuo Yzu-Wei, Tsai Chao-Hsuan, Cheng Yen-Ting, Cheng Chih-Kai, Lin Jyun-Ting
Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan 320, Taiwan.
Sensors (Basel). 2016 Oct 18;16(10):1731. doi: 10.3390/s16101731.
In the chemical reaction that proceeds in a high-temperature proton exchange membrane fuel cell stack (HT-PEMFC stack), the internal local temperature, voltage, pressure, flow and current nonuniformity may cause poor membrane material durability and nonuniform fuel distribution, thus influencing the performance and lifetime of the fuel cell stack. In this paper micro-electro-mechanical systems (MEMS) are utilized to develop a high-temperature electrochemical environment-resistant five-in-one micro-sensor embedded in the cathode channel plate of an HT-PEMFC stack, and materials and process parameters are appropriately selected to protect the micro-sensor against failure or destruction during long-term operation. In-situ measurement of the local temperature, voltage, pressure, flow and current distributions in the HT-PEMFC stack is carried out. This integrated micro-sensor has five functions, and is favorably characterized by small size, good acid resistance and temperature resistance, quick response, real-time measurement, and the goal is being able to be put in any place for measurement without affecting the performance of the battery.
在高温质子交换膜燃料电池堆（HT-PEMFC 堆）中进行的化学反应中，内部局部温度、电压、压力、流量和电流的不均匀性可能会导致膜材料耐久性变差以及燃料分布不均匀，从而影响燃料电池堆的性能和寿命。本文利用微机电系统（MEMS）开发了一种嵌入 HT-PEMFC 堆阴极通道板中的耐高温电化学环境的五合一微传感器，并适当选择材料和工艺参数，以保护微传感器在长期运行过程中不发生故障或损坏。对 HT-PEMFC 堆中的局部温度、电压、压力、流量和电流分布进行原位测量。这种集成微传感器具有五种功能，具有尺寸小、耐酸性和耐温性好、响应快、实时测量等优点，目标是能够放置在任何位置进行测量而不影响电池性能。
