Polymer Nanofiber Composite Solid Electrolytes for Battery Safety

Abstract

Polymer-based composite solid electrolytes (CSEs) combining the advantages of high ionic conductivity of ceramic electrolytes and low interfacial impedance of polymer electrolytes are attractive candidates in solid-state lithium batteries. However, the critical issues including the agglomeration of inorganic fillers and poor organic-inorganic interfacial compatibility remain major bottlenecks limiting the overall performance. Herein, we begin with the microstructure design of highly oriented ceramic fiber-integrated CSEs by involving the external field-assisted electrospinning strategy, which enables the low-tortuosity lithium-ion transport pathways within the ceramic phase. Furthermore, the organic-inorganic interfacial interactions are precisely engineered by in-situ polymerization or physical assemblies to accelerate the ion-selectively transport kinetics at the interface. Collectively, these advances enable the achievement of polymer/ceramic fiber CSEs with excellent electrochemical performance and high safe features for potential applications in next-generation solid-state energy storage.

Speaker

Prof. Yue-E Miao is now a Professor at College of Materials Science and Engineering, Donghua University. She received her BSc degree from Southeast University and PhD degree from Fudan University. During 2013-2014, she was a Joint-training PhD candidate at Nanyang Technological University. She has published over 50 research papers as the corresponding author in journals such as Angewandte Chemie and led over 10 research projects including National Excellent Youth Science Fund of China. She now serves as the Academic Editor of Advanced Fiber Materials, and Young Editorial Board Member of Composites Communications and eScience. Her research interests mainly focus on design and construction of functional polymer nanofiber composite materials to impart new structure-to-function properties in electrochemical energy storage applications.