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This invention provides a design to efficiently tune the relation between hydroxide conductivity and water uptake.
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Technology Description: A novel strategy has been invented for designing high-performance hydroxide (OH-) exchange membranes. Hydroxide exchange membrane fuel cells (HEMFCs) have the potential to become truly affordable and viable power sources because of their ability to work with non-precious metal catalysts and inexpensive hydrocarbon membranes. High hydroxide conductivity and low water uptake are required simultaneously for high-performance hydroxide exchange membranes (HEMs). However, these two parameters are heavily correlated: high water uptake is required to achieve high hydroxide conductivity, but it usually lowers the morphological stability. This invention provides a design to efficiently tune the relation between hydroxide conductivity and water uptake. Low water uptake and high hydroxide conductivity for Hydroxide Exchange Membranes; Excellent temperature-resistance