Electroforming of metallic bipolar plates with micro-featured flow field

Lee, Shuo-Jen; Chen, Yu-Pang; Huang, Ching-Han

doi:10.1016/j.jpowsour.2004.12.072

Cited by 60 publications

(27 citation statements)

References 9 publications

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“…The experimental fabrication tests showed that a shorter pulse rate and a higher pulse current improved the processing accuracy [24]. Shuo-Jen Lee et al used the method of combination of LIGA (Lithography Galvanik Abformung) processes and electroforming technology for the production of micro-featured flow field of the metallic bipolar plates [25]. Masanori Yokoyama et al [26] researched that a bipolar plate can be successfully produced by hot pressing the glassy alloy sheet in a supercooled liquid state.…”

Section: Metallic Bipolar Plate Manufacturing Methodsmentioning

confidence: 99%

State-of-the-art in bipolar of proton exchange membrane fuel cell

Wang

Yin

et al. 2010

SPIE Proceedings

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Proton exchange membrane fuel cell (PEMFC) has been the research focus because of the characteristics of compact structure, low-temperature starting, high specific energy density and power, environmental protection, prolonged service time. The bipolar plate in PEMFC has the function of isolating and uniformly distributing reactants, removing reaction products, collecting and inducing current, providing mechanical support for the cells in the stack collects, etc. The bipolar plate, which influences not only the cell stack performance but also the stack cost, is a vital component of PEMFC that is the choke point of industrialization. Compared with the conventional graphite bipolar plate, the metallic bipolar plate has the advantages of excellent electrical and thermal conductivity, high mechanical strength and power density, no leakage and good workability. Furthermore, the metal plate is especially suitable for production in mass. Therefore, metallic bipolar plate is considered to be a promising alternative for PEMFC bipolar. A review of the research work involves the material selection and processing of bipolar plate, flow-field type and the corresponding design, the forming methods of metallic bipolar plates. The materials of bipolar plate for PEMFC are focused on graphite, metal or alloy, and all kinds of composite materials. The disadvantages and advantages of these materials are compared. The flow channels of bipolar include dot-type, web-type, serpentine-type and the interdigital shape. Among them, serpentine-type flow channel plates are mentioned in detail. In this paper, we introduced the forming methods of metallic bipolar plates such as the electrochemical micro-fabrication, electroforming, thermoforming, micro-stamping and micro-milling. Finally, it points out that the prospective research about the PEMFC is minimization and industrialization.

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Section: Metallic Bipolar Plate Manufacturing Methodsmentioning

confidence: 99%

State-of-the-art in bipolar of proton exchange membrane fuel cell

Wang

Yin

et al. 2010

SPIE Proceedings

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“…Moreover, 304/304L SS showed higher contact resistance than 316/316L SS [33,37,44,45,[56][57][58], which could be related to the lower alloying content [33]. For these reasons, except use in some small-scale demonstration fuel cells [61] or for cladding with another functional layer [62], 304/304L SS has normally acted as a substrate for coating deposition [44,45,[55][56][57][58][59][63][64][65] In addition, some high N-bearing SSs have been evaluated for bipolar plate application [66][67][68] and showed promising results both in simulated PEMFC environments and in stack testing. High N-bearing SS is more economical compared with the conventional SSs.…”

Section: Bare Metallic Bipolar Platesmentioning

confidence: 99%

Reviewing Metallic PEMFC Bipolar Plates

2010

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A bipolar plate is one of the most important components in a polymer exchange membrane fuel cell (PEMFC) stack and has multiple functions. Metallic bipolar plate candidates have advantages over composite rivals in excellent electrical and thermal conductivity, good mechanical strength, high chemical stability, very wide alloy choices, low cost and, most importantly, existing pathways for high‐volume, high‐speed mass production. The challenges with metallic bipolar plates are the higher contact resistance and possible corrosion products, which may contaminate the membrane electrode assembly. This review evaluates the candidate metallic and coating materials for bipolar plates and gives the perspective of the research trends.

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“…Electroforming of metallic bipolar plates having microfeatured flow fields has been demonstrated by Lee et al (2005). Utilizing the LIGA process (Madou, 2002), high aspect ratio moulds were formed on metallic bipolar plates.…”

Section: Alternative Microfabrication Approachesmentioning

confidence: 99%

Micro-fuel cell power sources

Morse

2007

Int. J. Energy Res.

168

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SUMMARYThis paper presents a review and discussion of micro-fuel cell technologies, providing insight into the innovations that have been made to date. Discussion of concepts and results leading towards increased levels of integration and performance for micro-fuel cell systems will elucidate the potential of thin film and microfabrication methods in meeting the challenges and requirements necessary for consumer applications. While the amount of literature in this area is substantial, a representative sampling of key developments will be presented in this paper, in order to gain a sense of the design methodologies being implemented for micro-fuel cell power sources.

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Electroforming of metallic bipolar plates with micro-featured flow field

Cited by 60 publications

References 9 publications

State-of-the-art in bipolar of proton exchange membrane fuel cell

State-of-the-art in bipolar of proton exchange membrane fuel cell

Reviewing Metallic PEMFC Bipolar Plates

Micro-fuel cell power sources

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