Well-aligned BaTiO 3 nanofibers via solution blow spinning and their application in lithium composite solid-state electrolyte

作者：Zhoujie Zhang, Qi Wang, Zhihui Li, Yangchang Jiang, Bin Zhao, Xiaogang Han · 发表于：Materials Express · 年份：2019 · DOI：10.1166/mex.2019.1589 · 被引用次数：14 · 研究领域：Supercapacitor Materials and Fabrication、Conducting polymers and applications、Advanced Sensor and Energy Harvesting Materials

In this work, an efficient and simple solution blow spinning method for preparing well-aligned nanofibers was proposed. Compared with common electrospinning, this method is more promising for scalable fabrication because of fewer process requirements. Through this method, well aligned BaTiO 3 nanofibers were fabricated, and their average diameter was about 300 nm. When introducing PEO and LiTFSI ionic conductive polymer composites into the aligned BaTiO 3 nanofibers membrane, a composite solid-state polymer electrolyte was obtained. The excellent structure for the electrolyte was also analyzed and its electrochemical performance was tested. Results showed that the lithium ionic conductivity at 30 °C increased from 5.74 × 10 –6 S · cm –1 to 5.83 × 10 –5 S · cm –1 with addition of aligned BaTiO 3 nanofibers, and its thermal and electrochemical stability were all significantly improved.