| 초록 |
Lithium secondary batteries cannot be free from safety issues, especially for electric vehicle or energy storage applications. This insufficient safety comes from the use of liquid electrolytes consisting of organic solvents, which can be used as fuel in abnormal conditions such as overcharging or short-circuit. Therefore, various polymer electrolytes have been considered to replace liquid electrolytes over the last 20 years. However, their poor mechanical strength is still a main barrier for commercialization, comparing to that of polyolefin-based separators. In this study, polymer electrolytes based on mechanical supporting matrix such as non-woven fabrics are introduced. Non-woven fabrics not only show good mechanical strength for polymer electrolytes, but also have high porous structure for high ion conductivity. Polymer electrolytes are prepared by filling crosslinkable precursors inside the pores of non-woven fabrics, and their electrochemical properties are evaluated. |
