Cation Exchange Membranes

Cation Exchange Membranes are proton-conductive polymer film, also known as electrolyte or ionomer, that allow only protons to cross-over (cation exchange), the key function of proton exchange membrane fuel cells and water electrolyzers.

Basically, cation exchange membranes perform as a separator and solid electrolyte in a variety of electrochemical cells that require the membrane to selectively transport cations across the cell junction.  The polymer is chemically resistant and durable.


Tion5-W PFSA Membrane

Tion5-W PFSA Membrane

Tion5-W is PFSA (perfluorosulfonic acid) resin based cation exchange membrane with a thickness of ~1..

$38.00

PFSA D170-U Proton Exchange Membrane

PFSA D170-U Proton Exchange Membrane

PFSA D170-U Proton Exchange Membrane (PEM) is used to separate the anode and cathode compartment of ..

$46.00

PFSA D125-U Proton Exchange Membrane

PFSA D125-U Proton Exchange Membrane

PFSA D125-U Proton Exchange Membrane (PEM) is used to separate the anode and cathode compartment of ..

$43.00

PFSA D50-U Proton Exchange Membrane

PFSA D50-U Proton Exchange Membrane

PFSA D50-U Proton Exchange Membrane (PEM) is used to separate the anode and cathode compartment of P..

$48.00

PFSA D50-R ePTFE Reinforced Proton Exchange Membrane

PFSA D50-R ePTFE Reinforced Proton Exchange Membrane

PFSA D50-R ePTFE Reinforced Proton Exchange Membrane (PEM) is used to separate the anode and cathode..

$29.00

PFSA D15-R ePTFE Reinforced Proton Exchange Membrane

PFSA D15-R ePTFE Reinforced Proton Exchange Membrane

PFSA D15-R ePTFE Reinforced Proton Exchange Membrane (PEM) is used to separate the anode and cathode..

$17.00

PFSA S30-R ePTFE Reinforced Proton Exchange Membrane

PFSA S30-R ePTFE Reinforced Proton Exchange Membrane

PFSA S30-R ePTFE Reinforced Proton Exchange Membrane (PEM) is used to separate the anode and cathode..

$38.00

PFSA TE80-R ePTFE Reinforced Proton Exchange Membrane

PFSA TE80-R ePTFE Reinforced Proton Exchange Membrane

PFSA TE80-R ePTFE Reinforced Proton Exchange Membrane (PEM) is designed to be used in high different..

$41.00

Aquivion® E87-05S

Aquivion® E87-05S

Fuel Cell Store does not carry this product as of April 13, 2021. Aquivion® membrane is used to ..

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Aquivion® E98-05S

Aquivion® E98-05S

Production of this membrane has been postponed until further notice. Aquivion® membrane is used ..

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Aquivion® E98-09S

Aquivion® E98-09S

Production of this membrane has been postponed until further notice. Aquivion® membrane is used ..

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Aquivion® E98-15S

Aquivion® E98-15S

Production of this membrane has been postponed until further notice. Aquivion® membrane is used ..

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Fumapem F-14100

Fumapem F-14100

Please note that this material has been discontinued and we are completely out of stock. Fumapem..

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Fumapem F-930-RFS

Fumapem F-930-RFS

Please note that this product has been discontinued and a limited amount of stock remains.  ..

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Fumapem F-950

Fumapem F-950

Please note that this product has been discontinued and we are completely out of stock.   ..

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