电解质
材料科学
枝晶(数学)
阳极
法拉第效率
电镀(地质)
化学工程
锌
Crystal(编程语言)
无机化学
冶金
化学
电极
物理化学
几何学
数学
地球物理学
工程类
地质学
计算机科学
程序设计语言
作者
Yang Huang,Yongzhi Zhuang,Guo Li,Lei Cao,Yue Jiang,Zhenjie Liu,Yuzhen Zhao,Ke Xing,WU Xiao-yue,Shaojuan Luo,Guangming Chen,Zhuoxin Liu,Zhe Hu
出处
期刊:Small
[Wiley]
日期:2023-10-24
卷期号:20 (10)
被引量:3
标识
DOI:10.1002/smll.202306211
摘要
The stability of aqueous Zn-ion batteries (AZIBs) is detrimentally influenced by the formation of Zn dendrites and the occurrence of parasitic side reactions at the Zn metal anode (ZMA)-electrolyte interface. The strategic manipulation of the preferential crystal orientation during Zn2+ plating serves as an essential approach to mitigate this issue. Here, Zn aspartate (Zn-Asp), an electrolyte additive for AZIBs, is introduced not only to optimize the solvation structure of Zn2+ , but also to crucially promote preferential Zn2+ plating on the (002) crystal plane of ZMA. As a result, both side reactions and Zn dendrites are effectively inhibited, ensuring an anode surface free of both dendrites and by-products. The implementation of Zn-Asp leads to significant enhancements in both Zn||Zn symmetric and Zn||Ti batteries, which demonstrate robust cyclability of over 3200 h and high Coulombic efficiency of 99.29%, respectively. Additionally, the Zn||NaV3 O8 ·1.5H2 O full battery exhibits remarkable rate capability, realizing a high capacity of 240.77 mA h g-1 at 5 A g-1 , and retains 92.7% of its initial capacity after 1000 cycles. This research underscores the vital role of electrolyte additives in regulating the preferential crystal orientation of ZMA, thereby contributing to the development of high-performing AZIBs.
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