A new platform concept for micro-scale SOFC using low temperature co-fired ceramic technology

Micro-scale solid oxide fuel cells (μ-SOFCs) based on microfabrication processes have been found to be interesting as a battery replacement for portable power generation. The system consists of a fuel cell element, a fuel processing unit, a thermal control system and packaging for the electrical and fluidic connections as well as for mechanical support. The system is capable of operating above 500°C under both oxidizing and reducing atmospheres. Due to the relatively large size, complex fluidics and silicon microfabrication manufacturing is not practical for fabrication of the complete package and the gas processing unit (GPU). Low-temperature co-fired ceramic technology (LTCC) has recently emerged as an alternative solution to packaging μ-SOFC devices because of its easy 3D structuration capabilities allowing for integration of fluidics, combined with stable electrical connections, and outstanding thermal and chemical stability. In this paper, we propose a new concept of a packaging, GPU and test platform for μ-SOFC applications using LTCC technology. The platform primarily functions as a hotplate. Slender bridges carrying the electrical power supply and fluidic ports are used for thermal decoupling, allowing low conduction losses and convenient low-temperature interconnects, while providing mechanical support for the hot zone. Screen-printed thick-film silver palladium and platinum meanders are used as both heating elements (for testing and startup) and temperature measurement devices. The electrical characterization of the temperature regulation system was evaluated. The resistance-temperature behavior of the heating meanders was also characterized.


Published in:
Proceedings, PowerMEMS 2010, 10th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Leuven (BE)
Presented at:
PowerMEMS 2010, 10th International Workshop on Micro and Nanotechnology for Power Generation and Energy Conversion Applications, Leuven, Belgium, 1-3.12.2010
Year:
2010
Keywords:
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2010-12-13, last modified 2018-03-17

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2010 Jiang PowerMEMS Leuven - poster - Download fulltextPDF
2010 Jiang PowerMEMS Leuven - plateforme LTCC pour piles à combustible SOFC - Download fulltextPDF
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