Fuel Cells Etc products

A few key differences in the types of Membrane Electrode Assemblies, 7-Layer, 5-Layer or 3 -Layer, are the presence of gasket material, a pre-selected GDL, and the location of the applied catalyst layers. In the 5-Layer MEAs, the GDL is a standard carbon cloth with a microporous layer (MPL) applied to one side of the GDL.

The 3-Layer MEAs, also known as Catalyst Coated Membranes (CCMs), do not come with a GDL. This will allow you to experiment with different GDLs to find more optimal structures in your testing environment. The downside is that the catalyst must now be applied directly to the membrane which is a more difficult process. Both options will perform equally after the break-in period for the MEA, which is usually around 12 to 24 hours of operation. This operational period allows the product water to be distributed throughout the membrane and fully hydrate the MEA. 5-Layer MEAs are generally less expensive per MEA, whereas 7-Layer and 3-Layer MEAs have a higher cost, due to the increase in time and labor for manufacturing.

The Gas Diffusion Layer (GDL) is a very important supporting material in a Membrane Electrode Assembly (MEA). Gas diffusion layers are a porous material composed of a dense array of carbon fibers, which also provides an electrically conductive pathway for current collection. The two types of gas diffusion layers most commonly used are carbon paper and carbon cloth. Both are carbon fiber based porous materials: carbon paper is non-woven, while carbon cloth is woven fabric, thus no binder is needed. Check out all of the Gas Diffusion Layers we have to offer on our store website! > GDL-CT > Sigracet > ELAT > Freudenberg > Toray > AvCarb > SpectraCarb

GDL-CT is a woven carbon cloth with a Microporous Layer (MPL). It has a total thickness of 410 um (microns). GDL-CT is a great low-cost alternative to conventional woven carbon cloth Gas Diffusion Layer (GDL) materials. Advantages of GDL-CT Stable MPL slurry with sophisticated coating technology High compressibility (up to 100kg/cm²) Automated QC inspection system Reduce catalyst slurry permeation Avoid “flooding”

Freudenberg H2315 - C2 is a flexible and easy to use carbon paper Gas Diffusion Layer (GDL) with a Microporous Layer (MPL). It is recommended for highly humidified stationary PEMFC systems and High Temperature PEM. It is 250 um thick. Freudenberg C2 is recommended for: Highly humidified stationary PEMFC systems

Freudenberg H2415 - I2 C3 is a flexible and easy to use carbon paper Gas Diffusion Layer (GDL) with a Microporous Layer (MPL) as well as a hydrophobic treatment. It is recommended for low humidity systems, open cathode designs and air systems. It is 290 um thick. Freudenberg I2 C3 is recommended for: Power densities up to 0.5mA/cm2 Low humidified cathodes

Newly re-released at a fraction of the previous cost. NuVant`s ELAT™ is a carbon cloth gas diffusion layer (GDL) with a carbon microporous layer. ELAT has been engineered to have state-of-the-art performance over a wide range of operating conditions. Thickness is 454 um. Gas Diffusion Layers (GDL) are key components of the membrane electrode assembly of the polymer electrolyte membrane fuel cell (PEMFC). The PEMFC can provide traction, residential and portable power. Sugested Uses > Fuel cells > Electrolysis > Flow through Batteries > Water Clean-up Electrochemistry > And more! ?Contact us to inquire about catalyzed ELAT

Sigracet 25 BC is a woven carbon paper with a Microporous Layer (MPL) that has been PTFE treated to 5%. It has a total thickness of 235 um (microns). SGL 25 BC is a great low-cost alternative to conventional woven carbon cloth Gas Diffusion Layer (GDL) materials.

A quantity of 2 of each type is included in the kit. Our Gas Diffusion Layer (GDL) Pack consists of the following GDL: > ELAT LT 1400 W > Sigracet 25 BC > GDL-CT > Freudenberg H2415 C2 > Toray Paper TGP H 060

Choose the exact dimensions you need for any type of Nafion Membrane! Please contact us if you are looking for Nafion prices above .34m². Nafion Calculator Limits: Maximum Length: 100cm Maximum Width: 40cm The Membrane is used to separate the anode and cathode compartment of Proton Exchange Membrane (PEM) fuel cells and water electrolyzers.