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      Highly reversible zinc metal anode for aqueous batteries

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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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            Reversible aqueous zinc/manganese oxide energy storage from conversion reactions

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              A high-capacity and long-life aqueous rechargeable zinc battery using a metal oxide intercalation cathode

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                Author and article information

                Journal
                Nature Materials
                Nature Mater
                Springer Nature
                1476-1122
                1476-4660
                April 16 2018
                Article
                10.1038/s41563-018-0063-z
                29662160
                a394cacc-e6e7-4e19-8f1d-1d40afc1c6f9
                © 2018

                http://www.springer.com/tdm

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