Hydrogen-Bond Restructuring of Water-in-Salt Electrolyte Confined in Ti₃C₂T_x MXene Monitored by Operando Infrared Spectroscopy.

ABSTRACT: Highly concentrated water-in-salt aqueous electrolytes exhibit a wider potential window compared to conventional, dilute aqueous electrolytes. Coupled with MXenes, a family of two-dimensional transition metal carbides and nitrides with impressive charge storage capabilities, water-in-salt electrolytes present a potential candidate to replace flammable and toxic organic solvents in electrochemical energy storage devices. A new charge storage mechanism was recently discovered during electrochemical cycling of Ti₃C₂T_x MXene electrodes in lithium-based water-in-salt electrolytes, attributed to intercalation and deintercalation of solvated Li⁺ ions at anodic potentials. Nevertheless, direct evidence of the state of Li⁺ solvation duri

SUBMITTER: Lounasvuori M 

PROVIDER: S-EPMC9940289 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature