Carbon film-coated 304 stainless steel as PEMFC bipolar plate

Chung, Chih-Yeh; Chen, Shikun; Chiu, Po-Jen; Chang, Ming-Hsin; Hung, Tien-Tsai; Ko, Tse‐Hao

doi:10.1016/j.jpowsour.2007.10.022

Cited by 114 publications

(39 citation statements)

References 21 publications

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“…11 Chemical vapor deposition (CVD) was also used for carbon coating on Ni alloy, Ti and stainless steel. [12][13][14] Although the modification of metallic bipolar plate surface with carbon by the aforementioned techniques has been successful to some degree, the adoption of these techniques as a practical manufacturing method for bipolar plates is highly questionable because they require a vacuum ambient, which would lose their price competitiveness.…”

Section: Introductionmentioning

confidence: 99%

Passivation Behavior and Surface Resistance of Electrodeposited Nickel-Carbon Composites

et al. 2014

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Bipolar plates in fuel cells and redox flow batteries are one of the most expensive components, which become a crucial factor for their commercialization. In this report, nickel and carbon are co-electrodeposited from Watts solution containing carbon black powder, and the Ni-C composites are characterized by SEM, EDS, XRD and surface profilometry. The intrinsic passivation behavior and the sheet resistance of Ni-C are on a par with pure Ni when carbon is introduced less than 26 at% in the composite, but the introduction of carbon to Ni suppresses the increase in sheet resistance after a storage corrosion test, which invites the expectation of high durability as bipolar plate materials. This kind of approach where carbon is introduced to metal-based bipolar plates by electrodeposition can improve the surface properties of pure metal bipolar plates with maintaining their price competitiveness over graphite-based composites and other high cost manufacturing techniques.

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Section: Introductionmentioning

confidence: 99%

Passivation Behavior and Surface Resistance of Electrodeposited Nickel-Carbon Composites

et al. 2014

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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%

“…Fukutsuka et al [57] used a plasma-assisted CVD process to gain a thin carbon coating of less than 1 l. Coated 304 SS showed significant decreasing in ICR and improved corrosion resistance in simulated PEMFC environments [57]. Carbon-coated 304 SS was carried out by a CVD process, and the produced bipolar plates showed excellent performance and stability, even better ICR and performance than graphite in a stack test [64,65]. Conductive composite coatings on SS for PEMFC bipolar plates have also been actively investigated.…”

Section: Coated Stainless Steel 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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“…The published durability test methods include: (i) open circuit potential measurements [7][8][9][10][11][12][13][14][15], (ii) potentiostatic polarisation [7][8][9][10][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], (iii) polarisation resistance [27,31,32], (iv) linear-sweep voltammetry [7,33,34], (v) I-V and I-P curves and life time tests in fuel-cell *Address correspondence to this author at the Dipartimento di Ingegneria dell'Innovazione, Università del Salento, via Monteroni, 73100 Lecce, Italy; Tel: +39 0832297621, +39 0832297290; E-mail: benedetto.bozzini@unisalento.it assemblies [24,[35][36][37]. These electrochemical tests have been accompanied by compositional and structural measurements: for relevant details, refer to [2].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Performance of Austenitic Stainless Steel Bipolar Plates for Nafion- and Room-Temperature Ionic-Liquid-Based PEMFCs

Mele¹,

Bozzini

2012

TOEFJ

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Abstract:In this paper we study the corrosion of AISI 304 austenitic stainless steel PEMFC bipolar plates in aqueous and room-temperature ionic-liquid electrolytes. The anodic potential thresholds and dynamics have been investigated by electrochemical (potentiodynamic and potentiostatic) and in situ spectroelectrochemical methods (visible electroreflectance and VIS-UV spectroellipsometry). We measured the values of damage potentials and we followed the time evolution of corrosion current and reflectivity above and below the pitting potential, obtaining an accurate characterisation of the surface conditions under oxidative attack. The ability of AISI 304 to repassivate in Cl -containing aqueous solution as well as the amount of residual surface damage have been assessed quantitatively by following electrode reflectivity under applied potential. Outstanding inertness of AISI 304 in [BMP][TFSA] was proved. The results of this work show that low-cost AISI 304 is a promising interconnect material for both Nafion-and RTIL-based PEMFCs.

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Carbon film-coated 304 stainless steel as PEMFC bipolar plate

Cited by 114 publications

References 21 publications

Passivation Behavior and Surface Resistance of Electrodeposited Nickel-Carbon Composites

Passivation Behavior and Surface Resistance of Electrodeposited Nickel-Carbon Composites

Reviewing Metallic PEMFC Bipolar Plates

Corrosion Performance of Austenitic Stainless Steel Bipolar Plates for Nafion- and Room-Temperature Ionic-Liquid-Based PEMFCs

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