Effects of Mechanical Properties of Elastomeric Electrolytes for Stable Operation of Lithium Metal Batteries
발표자
이동규 (한국과학기술원)
연구책임자
김범준 (한국과학기술원)
공동저자
이동규 (한국과학기술원), 김범준 (한국과학기술원)
초록
내용
This work investigates how the mechanical properties of elastomeric electrolytes govern the stable operation of solid-state lithium metal batteries (LMBs). Enhancing the electrolyte’s mechanical integrity is essential to accommodate the substantial volume change of the lithium (Li) metal anode, particularly under high-loading cathode configurations and low-temperature conditions. By tuning the crosslinking density, we systematically modulate mechanical stretchability, resilience, and interfacial adhesion while preserving electrochemical properties, enabled by a bicontinuous microstructure. An optimized crosslinking density that balances strain accommodation, elastic recovery, and adhesion enables stable cycling of Li|NCM811 full cells at 25 °C. Finally, we elucidate how these mechanical factors correlate with full-cell performance at −10 °C, offering practical design guidelines for elastomeric electrolytes in solid-state LMBs.