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An Asymmetric‐Electrolyte Zn−Air Battery with Ultrahigh Power Density and Energy Density
ChemElectroChem ( IF 4 ) Pub Date : 2017-12-18 , DOI: 10.1002/celc.201701269
Pingwei Cai 1 , Yan Li 1 , Junxiang Chen 1 , Jingchun Jia 1 , Genxiang Wang 1 , Zhenhai Wen 1
Affiliation  

Zn−air batteries have attracted enormous research interest, driven by the promise for vehicle propulsion owing to their advantages of high‐level safety, low cost, and high specific energy density. Here, we report an asymmetric‐electrolyte Zn−air battery with acid catholyte and alkaline anolyte separated by a bipolar membrane. We demonstrate that the as‐designed Zn−air battery, thanks to the as‐formed concentration cell, can deliver a maximum power density of 380 mW cm−2 and a specific energy density of 1522 Wh kg−1 with an open‐circuit voltage of 2.25 V. The as‐proposed Zn−air battery performance is superior to the conventional Zn−air battery in terms of these pivotal performance parameters.

中文翻译:

具有超高功率密度和能量密度的非对称电解质锌-空气电池

锌空气电池由于其高水平安全性,低成本和高比能量密度的优势而受到了车辆推进的希望,因此吸引了巨大的研究兴趣。在这里,我们报道了一种不对称电解质锌-空气电池,其中酸性阴极电解质和碱性阳极电解质被双极性膜隔开。我们证明,设计好的Zn-air电池由于采用了形成的浓度传感器,在开路电压下可以提供380 mW cm -2的最大功率密度和1522 Wh kg -1的比能量密度在这些关键性能参数方面,建议的Zn-air电池性能优于传统的Zn-air电池。
更新日期:2017-12-18
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