Alkali anion exchange membrane
An alkali anion exchange membrane (AAEM) is a semipermeable membrane generally made from ionomers and designed to conduct anions while being impermeable to gases such as oxygen or hydrogen. This is their essential function when incorporated into a membrane electrode assembly (MEA) of a direct methanol fuel cell (DMFC) or direct-ethanol fuel cell (DEFC): separation of reactants and transport of anions.
The advantage of the alkali anion exchange membrane in the fuel cell is the potential to use non-noble metals such as iron, cobalt or nickel due to the low overpotentials associated with electrochemical reactions at high pH. In comparison against alkaline fuel cell, alkali anion exchange membrane fuel cells also protect the electrode from solid carbonate precipitation, which can cause fuel (oxygen/hydrogen) transport problem during start-up.
- Alkaline fuel cell
- Artificial membrane
- Gas diffusion electrode
- Ion exchange
- Glossary of fuel cell terms
- Proton exchange membrane
- Alkaline Anion Exchange Membrane Fuel Cells
- Comparison of PVDF and FEP based radiation-grafted alkaline anionexchange membranes for use in low temperature portable DMFCs
- Direct ethanol fuel cells using alkaline anion exchange membrane[dead link]
- Platinum-free fuel cell developed in Japan
- Poly(phenylene)-based anion exchange membranes for alkaline fuel cells[dead link]
- Anion Exchange Membrane and Ionomer for Alkaline Membrane Fuel Cells[dead link]
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