Highly concentrated aqueous electrolytes could replace solvents used in batteries

Highly concentrated aqueous electrolytes, known as water-in-salt electrolytes, could be an alternative to the organic solvents used in car batteries and other electrochemical devices. They have the advantages of abundance, low cost and nontoxicity, according to the review article "Water-in-salt electrolytes for high voltage aqueous electrochemical energy storage devices," published in the journal Current Opinion in Electrochemistry by Vitor Leite Martins and Roberto Manuel Torresi, both of whom are affiliated with the University of São Paulo's Chemistry Institute (IQ-USP) in Brazil.

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