Performance of a 1 kW Class Nafion-PTFE Composite Membrane Fuel Cell Stack

Table 1

Properties of the composite membrane.

S. No	Property
1	Substrate	Expanded PTFE
2	Substrate pore size	5 𝜇m
3	Substrate porosity	85%
4	Substrate thickness	25 𝜇m ± 5
5	Composite membrane thickness	28±5 𝜇m
6	Composite membrane conductivity	16 mS/cm