阳极
电解质
钝化
水溶液
材料科学
化学工程
电池(电)
电化学
图层(电子)
无机化学
化学
纳米技术
电极
有机化学
物理化学
功率(物理)
工程类
物理
量子力学
作者
Zhihuan Song,Jiajun Wang,Yu Song,Zanyu Chen,Hong Zhang,Zhong Wu,Xiaopeng Han,Wenbin Hu
出处
期刊:Chemsuschem
[Wiley]
日期:2023-02-07
卷期号:16 (7)
被引量:1
标识
DOI:10.1002/cssc.202202207
摘要
Mg-air batteries are a promising new generation of batteries because they can operate in neutral electrolytes that are safe and nontoxic. However, the high corrosion and low utilization of Mg anodes in Mg-air batteries result in low specific capacity and severe self-discharge. In this study, an Mg(OTf)2 -based aqueous electrolyte is developed, which addresses these issues by reducing the contact of the Mg anode with water molecules from the hydrophobic -CF3 groups and forming an MgF2 protective layer. The assembled Mg-air batteries exhibit specific capacities of up to 1920 mAh g-1Mg (87.32 % utilization based on the Mg anode). In addition, the resting time of the corresponding Mg-air batteries was 123 times longer than that of Mg-air batteries with pure NaCl electrolytes under the same conditions.
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