Celtec High Temperature PEM Fuel Cell MEA (25cm2)

Product Code: 20040001


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Celtec®-P Membrane Electrode Assemblies:

BASF offers a membrane electrode assembly (MEA) for high-temperature proton exchange membrane (HT-PEM) fuel cells and other relevant applications. This MEA operates at temperatures between 120 and 180 °C and can tolerate large concentrations of carbon monoxide as well as being able to run independently of humidification. This technology enables fuel cell systems to become simpler and more cost effective.

This Celtec®-P MEA has and active area of 25cm2 (5 by 5 cm) and it comes with the proprietary anode and cathode electrodes that are already bonded to the membrane.  A PDF drawing of the MEA design is given below.  

MEA Design:

Fuel Cell Store currently offers the following standard MEA designs:


For any other tailored or customized high temperature proton exchange membrane fuel cell (HT-PEMFC) MEAs, please contact us at

Applications and Properties of Celtec®-P MEAs:

Some of the applications that can benefit from BASF Celtec®-P high temperature proton exchange membrane fuel cell MEAs are provided below.  Some of the major properties of these MEAs are also provided in the table below.

Applications Properties
  • Backup Power
  • Combined heat, power, and cooling
  • Auxiliary power units
  • Battery range extender
  • Based on polybenzimidazole and phosphoric acid
  • Operating temperature 120 to 180 °C
  • High tolerance to carbon monoxide in the fuel mixture
  • No humidification is necessary
  • Long operational lifetime and stability (>20k hours)
Fuel Cell Performance of Celtec®-P MEAs:

Hydrogen/Air and Reformate/Air reactant based fuel cell performance of Celtec®-P MEAs are provided below. 

CO Tolerance of Celtec®-P MEAs:

One of the major benefit of the high temperature proton exchange membrane fuel cell technology is the capability of consuming the reformed hydrogen stream, it is essential that MEAs used in such electrochemical devices have excellent carbon monoxide tolerance.  During the reformation reaction, there is a small amount of the carbon monoxide gas generated in the fuel stream exiting the reforming catalyst bed, and presence of carbon monoxide can impact the overall fuel cell performance.  BASF Celtec®-P MEAs uses a proprietary anode and cathode catalysts in order to allow the Celtec®-P MEAs tolerate high levels of carbon monoxide compared to the other commercial high temperature PEMFC MEAs.  The following graph provides an example performance curve for Celtec®-P MEAs at different CO concentrations as a function of temperature. 


Robust Performance Against Humidity Changes for Celtec®-P MEAs:

Conventional high temperature PEMFC devices would usually use a polybenzimidazole PBI) or a co-polymer of PBI membrane that is phosphoric acid doped after the production of the membrane.  Such membrane activation and containment of the liquid acid inside the membrane result in acid leaching phenomenon.  PEM fuel cells generate water as the main by-product at the cathode side and presence of water further impacts the acid leaching phenomenon with the conventional PBI membrane.  Celtec®-P MEAs utilized an advance form of PBI membrane where the proprietary tetraamino monomer and dicarboxylic acid monomer are first reacted via polycondensation reaction in phosphoric acid and then a solution casting & hydrolysis step is carried out in order to obtain the Celtec®-P membrane.  This sol-gel synthesis protocol allows the PBI membrane to attain a novel morphology where the phosphoric acid is contained inside the membrane more effectively and has less acid leaching issues compared to conventional PBI membranes.  Laboratory test results showed that operational lifetimes of exceeding 20,000 hours can easily be achieved with Celtec®-P MEAs and Celtec®-P membranes.  The following graph provides the robust performance of Celtec®-P MEA against different humidity conditions.


For customers that purchased this product, a copy BASF Fuel Cell Handbook will be provided separately (free-of-charge) in an electronic format such as PDF file.

Celtec-P MEA Design Technical Data Sheet for 25cm2 Active Area

A typical lead time of 1-2 weeks is to be expected.

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