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Sensors 2010, 10(7), 6395-6405;

In-situ Monitoring of Internal Local Temperature and Voltage of Proton Exchange Membrane Fuel Cells

Department of Mechanical Engineering, Yuan Ze Fuel Cell Center, Yuan Ze University, Taoyuan, Taiwan
Author to whom correspondence should be addressed.
Received: 31 May 2010 / Revised: 17 June 2010 / Accepted: 22 June 2010 / Published: 29 June 2010
(This article belongs to the Section Chemical Sensors)
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The distribution of temperature and voltage of a fuel cell are key factors that influence performance. Conventional sensors are normally large, and are also useful only for making external measurements of fuel cells. Centimeter-scale sensors for making invasive measurements are frequently unable to accurately measure the interior changes of a fuel cell. This work focuses mainly on fabricating flexible multi-functional microsensors (for temperature and voltage) to measure variations in the local temperature and voltage of proton exchange membrane fuel cells (PEMFC) that are based on micro-electro-mechanical systems (MEMS). The power density at 0.5 V without a sensor is 450 mW/cm2, and that with a sensor is 426 mW/cm2. Since the reaction area of a fuel cell with a sensor is approximately 12% smaller than that without a sensor, but the performance of the former is only 5% worse. View Full-Text
Keywords: flexible multi-functional micro sensors; MEMS; PEMFC flexible multi-functional micro sensors; MEMS; PEMFC
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Lee, C.-Y.; Fan, W.-Y.; Hsieh, W.-J. In-situ Monitoring of Internal Local Temperature and Voltage of Proton Exchange Membrane Fuel Cells. Sensors 2010, 10, 6395-6405.

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