Richmond, KY 40475
USA
Ph: 001-859-940-0600
Fax: 001-859-626-9684
Comparisons between Nafion and LHL-PEM
LHL-PEM
Fluorine free, low cost
Properties
1. Temperature max: 80� C
2. Water sensitivity: middle
Less sensitive --> better
stability
3. Methanol crossover:
lower than Nafion: can be
used for DMFC application
4. Proton Conductivity:
Better than Nafion
(X2 times)
Nafion
Fluorinated polymer
Properties
1. Temperature max: 80� C
2. Water sensitivity: High
Swell and shrink -->
degradation,limited
life time
3. Methanol crossover:
High for DMFC application
4. Proton Conductivity: High
Power output:
The power generated with the LHL-PEM membrane is +20% higher than Nafion under the same conditions (at 200 mA/cm�, normal pressure).
Lifetime:
5-Cell stack performance good through 1,600 hours (360 mA/cm�, representing real working condition), comparable to Nafion.