材料科学
阳极
阴极
电化学
电解质
剥离(纤维)
聚合物
金属
储能
电镀(地质)
化学工程
锂离子电池的纳米结构
纳米技术
电化学窗口
电化学电位
电极
离子电导率
复合材料
冶金
物理化学
功率(物理)
工程类
化学
地质学
物理
量子力学
地球物理学
作者
Yi Shuai,Jin Lou,Xianglin Pei,Changqing Su,Xiaosheng Ye,Limin Zhang,Yu Wang,Zhixin Xu,Pingping Gao,Shijie He,Zhilong Wang,Kanghua Chen
标识
DOI:10.1021/acsami.2c12518
摘要
Sodium is one of the most promising anode candidates for the beyond-lithium-ion batteries. The development of Na metal batteries with a high energy density, high safety, and low cost is desirable to meet the requirements of both portable and stationary electrical energy storage. However, several problems caused by the unstable Na metal anode and the unsafe liquid electrolyte severely hinder their practical applications. Herein, we report a facile but effective methodology to construct an in situ polymer electrolyte and Na-rich artificial solid-electrolyte interface (SEI) layer concurrently. The obtained integrated Na metal batteries display long cycling life and admirable dynamic performance with total inhibition of dendrites, excellent contact of the cathode/polymer electrolyte, and reduction of side reactions during cycling. The modified Na metal electrode with the in situ polymer electrolyte is stable and dendrite-free in repeated plating/stripping processes with a life span of above 1000 h. Moreover, this method is compatible with different cathodes that demonstrate outstanding electrochemical performance in full cells. We believe that this approach provides a practical solution to solid-state Na metal batteries.
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