Breaking the 2 V Barrier in Aqueous Zinc Chemistry: Creating 2.45 and 2.8 V MnO2-Zn Aqueous Batteries
Breaking the 2 V Barrier in Aqueous Zinc Chemistry: Creating 2.45 and 2.8 V MnO2-Zn Aqueous Batteries
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DOI：
10.1021/acsenergylett.9b01643
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发表时间：
2019-09-01
影响因子：
22
通讯作者：
Banerjee, Sanjoy
中科院分区：
文献类型：
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作者：
Yadav, Gautam G.;Turney, Damon;Banerjee, Sanjoy
我们首次报道了在不使用分隔阳极和阴极的昂贵离子选择性膜的情况下创建 2.45 和 2.8 V 水性二氧化锰 (MnO2) 垂直棒锌 (Zn) 电池的情况。这种新型高压水系电池 (HiVAB) 能够多次重复充电和放电 MnO2 理论容量 (308 mAh/g) 的 20-100%，从而使这种新型 MnO2 垂直条形锌电池成为可能替代锂离子电池的先行者，适用于成本、安全性和能量密度特性被认为至关重要的应用。
We report for the first time the creation of 2.45 and 2.8 V aqueous manganese dioxide (MnO2)vertical bar 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 vertical bar 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.