The PENTION dispersions (also known as ionomers) are highly conductive and stable liquid solutions, and therefore useful for incorporation into electrode layers involving anion exchange membranes (AEM). The ionomer structure contains a poly(norbornene) backbone and is sold in either functionalized or non-functionalized forms. The functionalized polymer is sold as a dispersion for use in electrode layers (such as preparing the catalyst inks or slurries for fabrication of catalyzed gas diffusion layers or gas diffusion electrodes, GDEs, etc.) and is functionalized with a quaternary ammonium group. The functionalized polymer is not soluble in conventional solvent systems, so for membrane casting the unfunctionalized polymer is dissolved in an organic solution and must be functionalized after the membrane manufacturing step.

Pention™ dispersion (also known as ionomers) products can be used in various electrochemical applications including fuel cells, electrolyzers, sensors, and flow batteries, and various other electrochemical applications/technologies. Membranes made with Pention resin have demonstrated the highest recorded AEM fuel cell performance with a peak power density of 3.4 W/cm² (jointly conducted study between NREL, University of South Carolina, and Georgia Institute of Technology).

Key Advantages of Pention Dispersions:

  • Very high conductivity
  • Great chemical stability
  • Hydrophilic or hydrophobic natured depending on the selected series of the dispersion products

Additional information

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