A 3D Nanostructured Hydrogel-Framework-Derived High-Performance Composite Polymer Lithium-Ion Electrolyte

作者:Bae, Jiwoong; Li, Yutao; Zhang, Jun; Zhou, Xingyi; Zhao, Fei; Shi, Ye; Goodenough, John B.; Yu, Guihua*
来源:Angewandte Chemie - International Edition, 2018, 57(8): 2096-2100.
DOI:10.1002/anie.201710841

摘要

Solid-state electrolytes have emerged as a promising alternative to existing liquid electrolytes for next generation Li-ion batteries for better safety and stability. Of various types of solid electrolytes, composite polymer electrolytes exhibit acceptable Li-ion conductivity due to the interaction between nanofillers and polymer. Nevertheless, the agglomeration of nanofillers at high concentration has been a major obstacle for improving Li-ion conductivity. In this study, we designed a three-dimensional (3D) nanostructured hydrogel-derived Li0.35La0.55TiO3 (LLTO) framework, which was used as a 3D nanofiller for high-performance composite polymer Li-ion electrolyte. The systematic percolation study revealed that the pre-percolating structure of LLTO framework improved Li-ion conductivity to 8.8x10(-5) S cm(-1) at room temperature.

  • 出版日期2018-2-19