Effect of process parameters on forming depth of channels in fuel cell bipolar plates fabricated using rubber forming process

Jin, Chul Kyu; Jeong, Min Geun; Kang, Chung Gil

doi:10.1179/1432891714z.000000000461

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…Due to the need for a uniform distribution of coolant fluid and keeping the reactants separate from the coolant in a bipolar plate, the method for joining these plates is critical. Extensive research has been conducted on the design of the flow fields, 6,7 forming of the metallic bipolar plates and assembly of the stack components, [8][9][10][11] and also methods of coating of bipolar plates. 12,13 But there is no detailed information about the joining methods of bipolar plates.…”

Section: Introductionmentioning

confidence: 99%

Small‐scale resistance seam welding of stainless steel bipolar plates of PEM fuel cells

et al. 2021

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Joining process is one of the major steps in the manufacturing of stainless steel bipolar plates (BPPs). In this paper, the resistance seam welding method with a capacitor discharge (CD) welding machine is used for welding the metallic bipolar plates of polymer electrolyte membrane (PEM) fuel cells. For welding, the curved paths in the surroundings of the BPPs, ball electrode is used on the positive side of the welding machine and electrode wheel is used for welding the short straight paths inside the flow field channels. Weld seam quality and leakage resistance are examined with the peel test and pillow test. Eventually, according to the results of the peel and pillow tests, the optimum welding parameters for welding a BPP are determined. Finally, two halves of a BPP with parallel serpentine channel flow field are welded together by resistance seam welding method.

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