FuelCellsWorks

MHS Energies, a Business Unit of MHS Equipment SAS (Houilles, France), today announced that ultra-low platinum content PEMFC electrodes (10 µg/cm2) have been manufactured at the GREMI laboratory in University of Orléans (France) using magnetron sputtering of platinum on a commercial E-Tek® uncatalyzed gas diffusion layer in plasma fuel cell deposition devices manufactured by the company.
Particle size, deposition structure and platinum repartition leads to high electrodes efficiency for both hydrogen oxidation and oxygen reduction reactions. PEMFC performance achieved with such low platinum loaded electrodes (anode and cathode) of 400 mW/cm2 corresponding to a specific power of 20 kW/gPt is to our knowledge the highest that has been presented in scientific papers/literature to date. Platinum loadings of 0.16 and 0.01 mg/cm2 have been realized. PEMFC test with symmetric electrodes loaded with 10 µg/cm2 led to maximum reproducible power densities as high as 0.4 W/cm2 and 0.25 W/cm2 with Nafion®212 and Nafion®115 membranes, respectively.
Added to performances improvement described above, this technology also presents several advantages in cost and manufacturing, and is easily transferable to industrial processes.

MHS Equipment’s expertise lies in the conception and manufacturing of ultra high vacuum thin layer deposition systems. The company aims at making use of this know-how for the development and implementation of innovative breakthrough processes for the industries of renewable energy. Capitalizing on the future, MHS Energies proposes an innovative, environmentally-friendly concept for high performance PEMFC MEA manufacturing.
The first products will be branded as TP2L2 (Total Platinum Loading 20 µg/cm2).

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