This work aims at improving the state-of-the art of lithium-ion battery (LIB) scientific know-how by presenting a new fabrication protocol for the separator element. A polypropylene (PP) separator is coated on both sides with 4A zeolite using PVDF as binder, and then plasma treated from both sides. The novel separator possesses a substantial higher LiPF₆ electrolyte wettability, uptake and ionic conductivity compared to the sole plasma treated PP, PP coated with zeolite 4A on both sides and the PP itself. This behavior is ascribed to the partial disintegration of PVDF polymer upon plasma treatment and the creation of oxygenated groups on its particles and on the internal surface of the PP separator, together with substantial porosity increase of the latter. Using a Li(Ni_0.8Co_0.1Mn_0.1)O₂/separator/Li metal coin-cell assembly, it is shown that the cell performance in terms of rate capability is increased more than 30% at C rates of 0.1, 0.2, 0.5 and 1.0 with respect to the LIB constructed using the pristine PP separator.

这项工作旨在通过提出隔板元件的新制造协议，以改善锂离子电池（LIB）科学技术的最新水平。使用PVDF作为粘合剂，在聚丙烯（PP）隔板的两面都涂上4A沸石，然后从两面进行等离子处理。与唯一的等离子处理过的PP，两面都涂有沸石4A的PP和PP本身相比，新型隔板具有显着更高的LiPF ₆电解质润湿性，吸收性和离子电导率。此行为归因于在等离子体处理后PVDF聚合物的部分崩解以及在其颗粒上和PP隔板内表面上形成的氧化基团，以及后者的显着孔隙率增加。使用Li（Ni _0.8 Co_0.1 Mn _0.1）O ₂ /隔板/锂金属纽扣电池组件，显示出相对于LIB，在0.1、0.2、0.5和1.0的C比率下，就速率能力而言，电池性能提高了30％以上使用原始PP隔板构造而成。