%0 Journal Article %A Yadav, Gautam G. %A Turney, Damon %A Huang, Jinchao %A Wei, Xia %A Banerjee, Sanjoy %D 2019 %T Breaking the 2 V Barrier in Aqueous Zinc Chemistry: Creating 2.45 and 2.8 V MnO2–Zn Aqueous Batteries %U https://acs.figshare.com/articles/journal_contribution/Breaking_the_2_V_Barrier_in_Aqueous_Zinc_Chemistry_Creating_2_45_and_2_8_V_MnO_sub_2_sub_Zn_Aqueous_Batteries/9642887 %R 10.1021/acsenergylett.9b01643.s001 %2 https://acs.figshare.com/ndownloader/files/17302403 %K 2.8 V %K MnO %K Zn %K Aqueous Zinc Chemistry %K energy density characteristics %K 2.45 %K lithium-ion batteries %K 2 V Barrier %K ion-selective membranes %K manganese dioxide %X We report for the first time the creation of 2.45 and 2.8 V aqueous manganese dioxide (MnO2)|zinc (Zn) batteries without the use of expensive ion-selective membranes separating the anodes and cathodes. This new high-voltage aqueous battery (HiVAB) is able to charge and discharge 20–100% of MnO2’s theoretical capacity (308 mAh/g) repeatedly for many cycles, thereby establishing this new MnO2|Zn battery as the forerunner for the possible replacement of lithium-ion batteries for applications where cost, safety, and energy density characteristics are considered paramount. %I ACS Publications