Laser additive manufacturing of stainless steel micro fuel cells

This paper introduces laser additive manufacturing as a new method for the fabrication of micro fuel cells: The method opens up the capability of ultrafast prototyping, as the whole device can be produced at once, starting from a digital 3D model. In fact, many different devices can be produced at o...

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Bibliographic Details
Published in:Journal of power sources 2014-12, Vol.272, p.356-361
Main Authors: SCOTTI, Gianmario, MATILAINEN, Ville, KANNINEN, Petri, PIILI, Heidi, SALMINEN, Antti, KALLIO, Tanja, FRANSSILA, Sami
Format: Article
Language:English
Subjects:
Additives
Applied sciences
Density
Devices
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
Lasers
Prototyping
Stainless steels
Three dimensional models
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Summary:This paper introduces laser additive manufacturing as a new method for the fabrication of micro fuel cells: The method opens up the capability of ultrafast prototyping, as the whole device can be produced at once, starting from a digital 3D model. In fact, many different devices can be produced at once, which is useful for the comparison of competing designs. The micro fuel cells are made of stainless steel, so they are very robust, thermally and chemically inert and long-lasting. This enables the researcher to perform a large number of experiments on the same cell without physical or chemical degradation. To demonstrate the validity of our method, we have produced three versions of a micro fuel cell with square pillar flowfield. All three have produced high current and power density, with maximum values of 1.2 A cm super(-2) for the current and 238 mW cm super(-2) for power.
ISSN:0378-7753
1873-2755
DOI:10.1016/j.jpowsour.2014.08.096