Stainless steel bipolar plate fuel cell with different flow field structures prepared by laser additive manufacturing

The process of stamping stainless steel bipolar plates is developed from initial plate design through manufacturing and use in a fuel cell stack. A stamped design incorporating a serpentine flow field for the cathode and an interdigitated flow field for the anode is designed. This bipolar plate consists of only one piece of thin stainless steel sheet. The process of rubber-pad stamping was chosen to reduce shearing of the thin sheet. Dies were designed and made. Stainless steel plates were stamped, but stress were higher than anticipated and die failure was observed. The plates were tested both in-situ and by doing simulated fuel cell testing. Although sealing was an issue due to lack of proper gaskets and endplates, tests determined that the stamped bipolar plates will work in a PEM fuel cell stack. Dies were redesigned to improve durability. Gaskets and endplates were designed to complete the stack construction.

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Preliminary characterization of phenomena occurring during single track fabrication in laser additive manufacturing of stainless steel

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5063130 ◽

2014 ◽

Author(s):

Ville-Pekka Matilainen ◽

Heidi Piili ◽

Antti Salminen ◽

Tatu Syvänen ◽

Olli Nyrhilä

Keyword(s):

Stainless Steel ◽

Additive Manufacturing ◽

Single Track ◽

Laser Additive Manufacturing ◽

Preliminary Characterization

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Assessing the Co-Deformability of a Nickel-Based Superalloy-304L Stainless Steel Preform Manufactured through Laser Additive Manufacturing

Journal of Materials Engineering and Performance ◽

10.1007/s11665-021-05951-6 ◽

2021 ◽

Author(s):

Dipti Samantaray ◽

Bommakanti Aashranth ◽

Neelakandapillai Lekshmanan Parthasarathi ◽

Arun Kumar Rai ◽

Marimuthu Arvinth Davinci ◽

...

Keyword(s):

Stainless Steel ◽

Additive Manufacturing ◽

304L Stainless Steel ◽

Laser Additive Manufacturing ◽

Nickel Based Superalloy

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Corrosion-resistant characteristics of nitrided Ni-free stainless steel for bipolar plate of polymer electrolyte fuel cell

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2017.01.211 ◽

2017 ◽

Vol 42 (9) ◽

pp. 6303-6309 ◽

Cited By ~ 8

Author(s):

Yang Yu ◽

Sayoko Shironita ◽

Takaaki Mizukami ◽

Kunio Nakatsuyama ◽

Kenichi Souma ◽

...

Keyword(s):

Stainless Steel ◽

Fuel Cell ◽

Polymer Electrolyte ◽

Bipolar Plate ◽

Polymer Electrolyte Fuel Cell ◽

Corrosion Resistant

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Laser additive manufacturing of stainless steel micro fuel cells

Journal of Power Sources ◽

10.1016/j.jpowsour.2014.08.096 ◽

2014 ◽

Vol 272 ◽

pp. 356-361 ◽

Cited By ~ 24

Author(s):

Gianmario Scotti ◽

Ville Matilainen ◽

Petri Kanninen ◽

Heidi Piili ◽

Antti Salminen ◽

...

Keyword(s):

Stainless Steel ◽

Fuel Cells ◽

Additive Manufacturing ◽

Laser Additive Manufacturing

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Preparation of Multi-Layer Film on Stainless Steel as Bipolar Plate for Polymer Electrolyte Membrane Fuel Cell

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.113-116.2255 ◽

2010 ◽

Vol 113-116 ◽

pp. 2255-2261

Author(s):

Dong Ming Zhang ◽

Lu Guo ◽

Liang Tao Duan ◽

Zai Yi Wang

Keyword(s):

Stainless Steel ◽

Corrosion Resistance ◽

Fuel Cell ◽

Polymer Electrolyte ◽

Polymer Electrolyte Membrane ◽

Electrical Conductance ◽

Bipolar Plate ◽

Contact Angles ◽

Water Contact ◽

Electrolyte Membrane

In the present study, we try to prepare hydrophobic film coated on stainless steel as the bipolar plate for polymer electrolyte membrane fuel cell (PEMFC). Magnetron sputtering (MS) was adoped to prepare the Cr3Ni2/Cr2N multi-layer coated on stainless steel. The corrosion resistance and electrical conductance of the coated substrate were tested. The water contact angles were measured. The film exhibits improved corrosion resistance and electrical conductance. The corrosion current is 0.58µA.cm-2 and the contact resistance at 240N.cm-2 is 8.5mΩ.cm2. Meanwhile, it is a kind of hydrophobic film with water contact angle of 107o. The performance shows strong dependance on microstructural characteristics. The nano-protrudes on the SS304/Cr3Ni2/Cr2N surface result in the film with hydrophobic property, just like the effect of lotus surface.

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