Understanding structure, transportand electrochemical properties of DES for redox flow batteries

Dee Eutectic Solvents (DES) have wider electrochemical window then aqueous electrolytes and good solvent strength which allows for high concentrations of redox active solutes be available in DES for possibly higher-energy redox flow batteries. In order to understand the structural dependence of physical, transport and electrochemical properties of DES and design new redox active DES, we collaborate with advanced spectroscopy, neutron, computational and electrochemistry experts across the US in academic institutes and national laboratories.

DES are cheaper alternatives to ILs and are considered "green solvents"

They have suppressed volatility and flammability

They form from a mixture of a hydrogen bond donor (HBD) and an acceptor (HBA)

Unique structural aspect of DES (i.e., H-bonding) results in depressed melting point of the mixture compared to parent compounds

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