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PEMFC Graphite Flow Field, Serpentine - 25 cm2

Brand: Fuel Cell Store
Product Code: 690001

Price:
From $535.00

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25 cm2 graphite plate with serpentine flow pattern that is suitable for H2/Air (hydrogen/air), H2/O(hydrogen/oxygen), and DMFC (direct methanol fuel cell)  and other relevant electrochemical device testing (flow battery, redox flow battery, etc.).  This plate or flow field is manufactured from 100% pure graphite and have excellent electrical conductivity, high heat transfer, and superb corrosion resilience for various fuel cell and other relevant electrochemical device testing or applications.  

The flow pattern is based on serpentine design (with 5-channels or 5-flow paths) and this allows excellent control for the gaseous or liquid reactant flow and distribution across the entire surface of the electrode or the membrane (if the application is not using any catalyzed electrodes).  

Serpentine graphite plates or graphite flow fields can be ordered in any quantities (single, in pair or multiple quantities as needed).  Each plate would come with metal peg and a 4 mm banana plug as a standard item for attaching various electrical connection or sensor leads (voltage or current leads).  Fuel Cell Store is also providing various customizations such as graphite plates with 1/4" Nylon or 1/4" PTFE compression fittings at an additional cost (please see the dropdown menu when selecting the configuration to order).  Further details are provided below for these various configurations.

Standard Plate Configuration: Machined graphite plate with metal peg insert (also called as banana jack) and 1-set of 4 mm banana plugs (red color covered banana plug for cathode and black color covered banana plug for anode designation).  For researchers or customers purchasing this option, FCS strongly recommend the use plastic fittings (Nylon or PTFE) as the tube fittings for the graphite plates in order to prevent the cracking of the plates during attachment of the fittings.  Use of metallic tube fittings with graphite plates or graphite flow fields needs to be avoided as much possible because during the installation of metallic tube fittings, cracking of the graphite plates will be observed due to brittle nature of the graphite plates.  Over torquing (also called as over-tightening) of the tube fittings to the inlet/outlet ports of the graphite plate also needs to be avoided in order to prevent damages to the graphite plates or the fittings themselves. 

Standard Plate Configuration with Nylon Fittings: This is the standard plate configuration that comes with 2 sets of Nylon fittings.  Specifically, machined graphite plate with metal peg insert (also called banana jack) and 1-set of 4 mm banana plugs (red color covered banana plug for cathode and black color covered banana plug for anode designation) and 2 sets of Nylon tube fittings.  The stated tube fittings are male connector, 1/4 inch tube OD x 1/8 inch male NPT.  Nylon fittings are suitable for making connections to various metal and plastic gas or reactant transfer tubes and rated up to 220 psi.

Standard Plate Configuration with PTFE Fittings: This is the standard plate configuration that comes with 2 sets of PTFE fittings.  Specifically, machined graphite plate with metal peg insert (also called banana jack) and 1-set of 4 mm banana plugs (red color covered banana plug for cathode and black color covered banana plug for anode designation) and 2 sets of PTFE tube fittings.  The stated tube fittings are male connector, 1/4 inch tube OD x 1/8 inch male NPT.  PTFE fittings are suitable for making connections to various metal and plastic gas or reactant transfer tubes and rated up to 220 psi and provides excellent chemical resistance to various environments.

Graphite plates are not suitable for electrochemical cells or applications that have half cell potentials greater than 1.23 V (versus NHE) or applications that utilize corrosive chemicals/electrolytes that would present a situation where carbon atoms can be oxidized either electrochemically or chemically.

Active Area Dimensions: 5 x 5 cm (1.97" x 1.97")

Active Area: 25 cm2 (or 3.87 in2)

Flow Pattern or Channel Design: Serpentine (5-channels)

Total Physical Dimensions for Graphite Plates: 9.6 x 9.6 cm (3.77" x 3.77")

Thickness of the Graphite Plates: 1.9 cm (0.75")

Please contact us if you have questions regarding this product.

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