| 초록 |
Typical separators based on polypropylene or polyethylene have been manufactured with stretching method, so the size or distribution of pores are not regular, and the function of the separators would be degraded when the battery temperature increases. To solve that matter, a three dimensionally ordered macroporous (3DOM)-structured polyphenylene sulfide (PPS) separator has been proposed. PPS is a super-engineering plastic that has excellent thermal stability and structural chemical endurance, so it can maintain its function as a separator even when the battery temperature increases. Once a PPS has been tailored to have a 3DOM structure with uniform pore size and pore distribution, various electrochemical examinations including various analysis confirmed that the lithium-ion transfer capability exhibited much higher stability than the commercial PP separators, according to the size change of SiO2, which served as pore generator for 3DOM structure of PPS separator. |
