Despite their high theoretical specific energy of 2,600 Wh kg<sup>-1</sup>, the commercialization of Li-S batteries is hindered by irreversible capacity loss from the dissolution of polysulfide intermediates in the electrolyte solution. We report novel strategies to design reactive sites for polysulfide adsorption in metal-organic frameworks (MOFs) to improve capacity retention and ionic conductivity. Incorporation of redox-active moieties in the framework further enable fast charge and discharge capabilities. We will present our efforts in identifying structure-property-function relationships in tunable molecular platforms with the goal of developing chemical strategies that can be translated across electrochemical storage technologies.

Designing functional sites in porous framework materials for energy storage

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