| 초록 |
The facilitation of ion/electron transport is a key to enabling the development of advanced energy storage systems. Among major battery components, separator membranes have not been the center of attention compared to other electrochemically active materials. Here, we present a new class of battery separator based on inverse opal-inspired, nanoscaffold structure to provide unprecedented advances in electrochemical performance. The IO separator is fabricated through one-pot, evaporation-induced self-assembly of colloidal silica nanoparticles in the presence of UV-curable triacrylate monomer inside a nonwoven substrate, followed by crosslinking and selective removal of the silica superlattices. The precisely-ordered/well-reticulated nanoporous structure of IO separator allows significant improvement in ion transfer towards electrodes. This study provides a new perspective on battery separators: a paradigm shift from plain porous films to pseudo-electrochemically active nanomembranes. |
