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Proton Exchange Membrane Fuel Cell Application

Proton Exchange Membrane Fuel Cell Application

Brief Introduction of Proton Exchange Membrane Fuel Cell application
1:Thickness:28um and 51um
2:Standard size: 600mmx600mm,800mmx800mm
3:Tensile Strength: 40Mpa
4:Tensile Modulus: 630Mpa
5:Water % : 50% Around

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Product Details

Product Description


Proton exchange membrane (PEM) is one of the core components of PEMFC, which together with the electrode determines the performance, lifetime and price of the whole PEMFC. Proton exchange membranes for use in PEMFC shall meet the following requirements :

(1) higher proton conductivity (under fuel cell condition;

(2) low permeability of gas or fuel to block fuel and oxidant;

(3) low electroosmotic coefficient of water;

4) better chemical and electrochemical stability;

5) good mechanical strength;

6) lower cost. Up to now, a large number of PEM materials have been developed. According to the structure of the membrane, PEM can be divided into three categories: sulfonated polymer membrane, composite membrane and inorganic acid doped membrane.

At present, the PEM materials are mainly sulfonated polymer electrolytes. According to the fluorine content of the polymer, they can be divided into three kinds: perfluorinated sulfonic acid proton exchange membrane, partial fluorinated proton exchange membrane and non-fluorinated proton exchange membrane, etc.


Specification of Proton Exchange Membrane:


Type

Thickness(um)

Weight   (g/m2)

PEM-211

28

56

PEM-212

51

102

PEM-1135

90

180

PEM-115

128

256

PEM-117

180

360

PEM-1110

256

512


Working Performance of Proton Exchange Membrane


Characteristic

Value

Test Standard

Tensile Strength

40MPa(23℃,50%RH,Isotropy)

ASTMD882

Tensile Modulus

630MPa(23℃,50%RH,Isotropy)

ASTMD882

Linear Expansivity

10%Around(23℃,from50% RH to water soaked)

ASTM756

Moisture Content

50±5%(100C, 1H)

ASTMD570

Conductivity

0.1S/cm

25℃,zawodzinski

Acid Capacity

1.0meq/g

Titrimetry

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