阳极
材料科学
阴极
电解质
纹理(宇宙学)
电流密度
电池(电)
Crystal(编程语言)
平面(几何)
电偶阳极
电气工程
电极
化学
计算机科学
几何学
工程类
阴极保护
数学
物理化学
功率(物理)
物理
量子力学
人工智能
图像(数学)
程序设计语言
作者
Sheng Chen,Kefeng Ouyang,Youfa Liu,Mangwei Cui,Guo Pu,Yihan Wang,Qian Zhang,Yan Huang
标识
DOI:10.1002/anie.202409303
摘要
Zn anode protection in Zn‐ion batteries (ZIBs) face great challenges of high Zn utilization rate (i.e., depth of discharge, DOD) and high current density due to the large difficulty in obtaining an extreme overall RTC (relative texture coefficient) of Zn (002) plane. Through the potent interaction of Mn(III)aq and H+ with distinct Zn crystal planes under an electric field, large‐size Zn foils with a breakthrough (002) plane RTC of 99% (i.e., close to Zn single crystal) are electrodeposited on texture‐less substrates, which is also applicable from recycled Zn. The ultra‐high (002) plane RTC remarkably enhances cyclic performance of the Zn anode (70% DOD @ 45.5 mA cm‐2), and the DOD is even up to 95% (@ 28.1 mA cm‐2) with an electrolyte additive of polyaniline. Furthermore, MnO2, the by‐product of electrodeposition, is directly used as cathode of both coin cell and pouch battery, surpassing the cyclic performance exhibited by the majority of Zn||MnO2 batteries in previous instances. These results demonstrate the great potential of our strategy for high‐performance, low‐cost and large‐scale ZIBs.
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