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      Batteries: Widening voltage windows

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      Nature Energy

      Springer Nature

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          Most cited references 6

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          Electrolytes and interphases in Li-ion batteries and beyond.

           Kang Xu (2014)
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            "Water-in-salt" electrolyte enables high-voltage aqueous lithium-ion chemistries.

            Lithium-ion batteries raise safety, environmental, and cost concerns, which mostly arise from their nonaqueous electrolytes. The use of aqueous alternatives is limited by their narrow electrochemical stability window (1.23 volts), which sets an intrinsic limit on the practical voltage and energy output. We report a highly concentrated aqueous electrolyte whose window was expanded to ~3.0 volts with the formation of an electrode-electrolyte interphase. A full lithium-ion battery of 2.3 volts using such an aqueous electrolyte was demonstrated to cycle up to 1000 times, with nearly 100% coulombic efficiency at both low (0.15 coulomb) and high (4.5 coulombs) discharge and charge rates.
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              Aqueous rechargeable Li and Na ion batteries.

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                Author and article information

                Journal
                Nature Energy
                Nat Energy
                Springer Nature
                2058-7546
                October 2016
                October 6 2016
                October 2016
                : 1
                : 10
                Article
                10.1038/nenergy.2016.161
                © 2016

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