Development of SLS fuel cell current collectors

Author： Chen Ssuwei Murphy Jeremy Herlehy Jason Bourell David L. Wood Kristin L.

ISSN： 1355-2546

Source： Rapid Prototyping Journal, Vol.12, Iss.5, 2006-10, pp. : 275-282

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Abstract

Purpose ? This paper aims to present a new fabrication method for fuel cell current collectors. Demonstration of its usefulness and discussion of its impact on current collector design and performance are also given. Design/methodology/approach ? The selective laser sintering (SLS) technique is used to create green parts followed by a high temperature curing process and pressureless infiltration treatment to meet basic part design requirements. Findings ? A material system and process satisfying both manufacturing constraints and product property requirements can be used for fabrication of current collectors via SLS. Relative particle size and composition of the constituents play an important role in successful manufacture of the plates. Strategies to improve electrical conductivity are also discussed. Originality/value ? A new manufacturing method has been developed for the construction of fuel cell current collectors that could generate opportunities for performance enhancement and fuel cell application by eliminating the constraints imposed by traditional fabrication processes.