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Core Technologies of Our MEA
1. Catalyst Supplements
The addition of conductive materials enhances electrical conductivity and prevents the structural collapse of the CCM layer
Durable Pt catalysts with size control and high crystallinity are available from five different suppliers
2. Ionomer Re-dispersion
Commercial ionomer is initially dispersed in water in the form of winded and hydrated clusters with a size of approximately 450 nm
Ionomer is un-winded and re-dispersed using a mixture of polar and non-polar solvents, reducing the cluster size to approximately 100 nm
Re-dispersed ionomer enhances MEA performance by increasing proton conductivity and improving material transport speed
3. Slurry Dispersion
A mixed dispersion solvent with various additives, such as zwitterionic surfactants, forms micelle structures that provide high suspension stability
Fine dispersion maximizes the utilization of the precious Pt catalyst by enhancing the refinement of the triple-phase interface
High zeta potential and reversible thixotropy enable the slurry to achieve properties suitable for a stable MEA coating with uniform performance
Self-decomposing dispersion additives create a homogeneous distribution of micro-pores, leaving no harmful impurities
Fine and homogeneous paths for the facile transport of reactants and products relieve the concentration overpotential
4. Interface Adhesion
The mixed solvent for ionomer re-dispersion is carefully selected to also function as a plasticizer for the membrane surface
During the heat compression, the residual solvent reforms the membrane surface resulting in an intermediate layer for the gradual transition
Simultaneously improves fuel cell performance and long-term reliability by improving interfacial mobility and strengthening interfacial adhesion
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