This study features comprehensive physical and electrochemical properties of different polyolefin and non-polyolefin separators. These separators include polypropylene-polyethylene-polypropylene (PEP), polyethylene (PE), Al₂O₃-coated polypropylene (C-PP), polyethylene terephthalate (PET), and Silicon carbide mat (SiCmat). The interaction of the different separators and the electrolyte was investigated in terms of ionic conductivity, contact angle test, electrolyte uptake, and electrolyte oxidation. The full cells fabricated using the different separators were also studied for charge–discharge performance, cycle performance, and internal resistance. Results showed that the different separators demonstrated different physical and electrochemical behavior. The non-polyolefin separators registered a small electrolyte contact angle due to their high porosity and structural compatibility with the electrolyte. At 10 C-Rate, the specific capacity is in the order of PET > SiCmat > C-PP > PE > PEP corresponding to 90 mAh/g, 85 mAh/g, 70 mAh/g, 60 mAh/g and 40 mAh/g respectively. After 100 cycles at 1.0 C-rate, the cycle performance is in the order of PE > PET > C-PP > SiCmat > PEP corresponding to 70 %, 65 %, 61 %, 51 % and 49 % respectively. Thermally, PET, C-PP and SiCmat showed better thermal stability compared to the other separators. Therefore, Industrial production that requires high thermal stability may rely on C-PP, PET, or SiCmat, while PET and SiCmat offer better cycle performance and may replace commercially available PE and PEP.

这项研究的特点是不同聚烯烃和非聚烯烃隔膜的综合物理和电化学性能。这些隔膜包括聚丙烯-聚乙烯-聚丙烯(PEP)、聚乙烯(PE)、Al ₂ O ₃涂覆的聚丙烯(C-PP)、聚对苯二甲酸乙二醇酯(PET)和碳化硅垫(SiCmat)。从离子电导率、接触角测试、电解质吸收和电解质氧化方面研究了不同隔膜和电解质的相互作用。还研究了使用不同隔膜制造的全电池的充放电性能、循环性能和内阻。结果表明，不同的隔膜表现出不同的物理和电化学行为。非聚烯烃隔膜由于其高孔隙率和与电解质的结构相容性而具有小的电解质接触角。在10C倍率下，比容量的顺序为PET>SiCmat>C-PP>PE>PEP，对应于90mAh/g、85mAh/g、70mAh/g、60mAh/g和40mAh/分别为g。在 1.0 C 倍率下循环 100 次后，循环性能的顺序为 PE > PET > C-PP > SiCmat > PEP，分别对应于 70%、65%、61%、51% 和 49%。热方面，与其他隔膜相比，PET、C-PP 和 SiCmat 表现出更好的热稳定性。因此，需要高热稳定性的工业生产可能会依赖C-PP、PET或SiCmat，而PET和SiCmat提供更好的循环性能，并可能取代市售的PE和PEP。