材料科学
普鲁士蓝
阳极
电解质
枝晶(数学)
电镀(地质)
电化学
相(物质)
化学工程
电极
化学
数学
几何学
地质学
工程类
物理化学
有机化学
地球物理学
作者
Bo Zhang,Yang Zhang,Jiulin Hu,Meng Lei,Zong‐Yang Shen,Chilin Li
摘要
The garnet-based solid-state batteries have the potential advantages of high energy density and safety. However, the poor solid–solid contact and Li dendrite growth at the anode interface lead to uneven Li deposition or short circuit, which hinders their practical application. Here, we propose a Prussian blue (PB) interlayer to improve the interface contact and charge transfer between Li anode and garnet electrolyte by lithiation-induced conductivity modulation. This mixed-conducting interlayer with unique 3D open framework enables a well welded interface with enhanced lithiophilicity and uniform Li diffusion. The Li/garnet interface resistance is significantly reduced. This lithiated PB interlayer is highly durable with invariable thickness during cycling, leading to a highly stable cycling of Li plating/stripping and corresponding LiFePO4 full cells without dendrite growth. The dual modulation of ion and electron transports in an integrated structure without phase segregation through thermal or electrochemical lithiation provides a solution to the challenge of solid–solid interfaces and the development of practical solid-state batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI