| 초록 |
Since lithium-ion batteries based on liquid electrolytes have shown safety issues such as fire and explosion due to undesirable lithium dendrite growth at the interface between electrode and electrolyte, solid polymer electrolytes (SPEs) have been actively studied because of the SPE possessing good mechanical strength, flame resistance, and flexible geometry. Furthermore, it is necessary for the SPE to have the ability of a material to heal itself (referred to as self-healing) upon mechanical damage. Therefore, functional self-healing materials repair damage by wear, thereby extending lifetime and lowering cost of materials and devices. In this study, we explored the integration of self-healing capabilities to create lithium ion batteries with greatly improved lifetime. Our SPEs were prepared by the combination of lithium salts (LiTFSI), lithium solvating liquid(BMIM-TFSI), 2-[[(butylamino)carbonyl]oxy]ethylacrylate, Isobornylacrylate via a simple UV cross-linking process. |
