Contact resistance characteristics of coated metallic bipolar plates for PEM fuel cells – investigations on the effect of manufacturing

Turan, Cabir; Cora, Ömer Necati; Koç, Muammer

doi:10.1016/j.ijhydene.2012.09.042

Cited by 40 publications

(20 citation statements)

References 128 publications

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“…Temiz enerji kaynaklarından günümüzde en fazla göz önünde bulundurulanı hidrojen enerjisidir. Yakıt pilleri, yakıtın kimyasal enerjisini doğrudan elektriğe çeviren, çevreyi kirletici emisyonlar üretmeyen, yüksek verimli elektrokimyasal cihazlardır [3][4][5][6]. Yakıt pillerinin keşfi ve araştırılması 1800'lü yıllara dayansa da, zaman içerisinde yeni icat ve keşiflerle birlikte hep arka planda kalmıştır.…”

Section: Introductionunclassified

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Topcu¹,

Topcu²,

Aydın³

et al. 2019

acperpro

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ÖzetYakın gelecekte petrol rezervlerinin tükeneceği öngörülmemektedir, fakat hidrokarbon kökenli yakıtların kullanılması canlılar için sağlığa olumsuz etki eden emisyonlar oluşturmaktadır. Bu nedenle dünya genelinde yenilenebilir, alternatif ve temiz enerji kaynaklarına yönelim söz konusu olmaktadır. Yakıt pilleri, sessiz ve verimli çalışabilen, aynı zamanda zararlı emisyonları olmayan bir elektrik üretecidir. Ticari uygulamaları da bulunan yakıt pilleri, havacılık, otomotiv, askeri, denizaltı yerel ve mobil uygulamalarda kullanılabilmektedir. Bu da kapsamlı bir uygulama alanı olduğunun göstergesidir. Bu çalışmada yakıt pili tiplerinden PEM yakıt pilleri araştırma konusu olarak seçilmiş ve PEM yakıt pili bileşenlerinden bipolar plakaların üretim teknikleri ele alınmıştır. Geleneksel ve yenilikçi üretim tekniklerinin araştırıldığı bu çalışmada, üretim trendinin ne aşamada olduğu tartışılmış ve konunun gelecek perspektifi göz önünde bulundurularak yapılan araştırmalar değerlendirilmiştir.Anahtar Kelimeler: PEM yakıt pili, bipolar plaka, üretim teknikleri, geleneksel, toz metalürjisi, eklemeli imalat. AbstractOil reserves are not predicted to be wasted in the near future, but usage of hydrocarbon based fuels generates harmful emissions which affects the human health negatively. Therefore, there is a tendency towards renewable, alternative and clean energy sources worldwide. Fuel cells are electricity generators that can operate quietly and efficiently, and also without harmful emissions. Fuel cells can be used in aviation, automotive, military, submarine local and mobile applications which are also used in commercial applications. This situation show that comprehensive application fields of PEMFC. In this study, PEM fuel cell was selected as research area which is a type of fuel cell, and manufacturing techniques of bipolar plates investigated, which is a component of PEMFC. Traditional and innovator production techniques were researched and studies were evaluated in the literature considering the future perspective of the subject.

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Section: Introductionunclassified

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Topcu¹,

Topcu²,

Aydın³

et al. 2019

acperpro

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“…Stainless steel (SS) has shown satisfactory performance as a bipolar plate for thousands of hours of testing [8,9]. Moreover, in the development of manufacturing for metal bipolar plates, the variations in channel depth and undercut for any mask or pattern might be expected [10][11][12][13][14][15][16][17][18]. Further, machining tolerances and tool deterioration could cause a variance in laboratory plates obtained from various vendors.…”

Section: Introductionmentioning

confidence: 99%

Investigation of bipolar plate materials for proton exchange membrane fuel cells

Shimpalee

Lilavivat

McCrabb

et al. 2016

International Journal of Hydrogen Energy

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Low-cost parts, materials, and production methods are important for effective establishment of polymer electrolyte membrane fuel cells (PEMFCs) into the commercial marketplace. The bipolar plate is one part that substantially impacts the PEMFC manufacturing cost. Metallic bipolar plates are an attractive alternative to graphite because they provide the necessary electrical and thermal conductivity and they offer good mechanical strength which supports the forces within the stack. Stainless steel, which is reasonably cheap, a good conductor, and corrosion resistant with high strength, has exhibited acceptable performance as a bipolar plate for several thousand hours of experiments. In this work, a through-mask electro-etching process was selected for fabrication of 304L and 430 stainless steel alloy bipolar plates for 25cm 2 PEMFC and they were compared against the graphite material. The key results revealed that stainless steel bipolar plates give comparable performance to graphite plates especially under well humidified conditions. At drier conditions, the resistance is the largest factor on the overall performance for all bipolar plate materials. Toray paper and Carbel CL GDLs give different performances under various bipolar plate materials and operating conditions. It is also shown that significant differences in channel depth profiles affect the overall performance.

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“…8 Furthermore, a passive lm developed on the stainless steel surface results in increased interfacial contact resistance (ICR) between the corroded plates and the neighbouring gas diffusion layer, thereby raising the overall ohmic resistance of the cell. 18 Turan et al 19 investigated the change of contact resistance of the ZrN coated 316L SS samples before and aer they were exposed to the proton exchange membrane fuel cells (PEMFC) operating conditions. [10][11][12] To date, a grave challenge for these coatings prepared by various surface modication techniques is the presence of defects, such as pinholes, pores and macrodroplets, which act as corrosion channels for localized attack by aggressive media.…”

Section: Introductionmentioning

confidence: 99%

A ZrN nanocrystalline coating for polymer electrolyte membrane fuel cell metallic bipolar plates prepared by reactive sputter deposition

Munroe

et al. 2015

RSC Adv.

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To improve the surface performance and durability of 316L stainless steel (SS) used in polymer electrolyte membrane fuel cell (PEMFC) environments, a ZrN coating with an average grain size of $15 nm, was deposited by reactive sputter-deposition using a double glow discharge plasma technique. The corrosion behavior of the as-deposited coating was examined and compared to uncoated 316L SS in simulated PEMFC environments (i.e., 0.5 M H 2 SO 4 + 2 ppm HF solution) by potentiodynamic and potentiostatic polarizations along with electrochemical impedance spectroscopy (EIS). The results showed that the corrosion resistance of the ZrN-coated 316L SS was significantly higher than that of uncoated material. Additionally, in comparison with uncoated 316L SS, the interfacial contact resistance (ICR) between the ZrN-coated 316L SS and the simulated gas diffusion layer (i.e., conductive carbon paper) was reduced by two orders of magnitude and remained mostly unchanged after potentiostatic polarization for 5 h. Furthermore, the average contact angle with water for the ZrN coated 316L SS (84.9 ) was higher than that of uncoated material (64.4 ), indicating that the ZrN-coated 316L SS is more hydrophobic.

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Contact resistance characteristics of coated metallic bipolar plates for PEM fuel cells – investigations on the effect of manufacturing

Cited by 40 publications

References 128 publications

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

PEM Yakıt Pili Bipolar Plakalarının Geleneksel ve Yenilikçi Üretim Teknikler

Investigation of bipolar plate materials for proton exchange membrane fuel cells

A ZrN nanocrystalline coating for polymer electrolyte membrane fuel cell metallic bipolar plates prepared by reactive sputter deposition

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