Enhanced electrochemical performance of zeolite/polyethersulfone (PES) composite separator for lithium-ion batteries

The separator is a crucial battery component that has a considerable impact on their performance. For high-performance lithium-ion batteries, the regulation of their attributes is particularly essential. Separators between two electrodes must provide a high level of mechanical, thermal, and ionic conductivity. Recognizing the significance of battery separators to the performance of lithium-ion batteries. In this experiment, the phase inversion technique is utilized to produce a ZSM-5 (hierarchical)/PES composite membrane. The HZSM-5/PES membrane's morphology generated an asymmetrical membrane structure with finger-like pores. It has been demonstrated that the addition of filler material to the membrane increases wettability, thermal stability, and ion conductivity. The zeolite particles in the polyethersulfone enhanced the porosity and liquid uptake by 66.87% and 358.82%, respectively, and the conductivity of the ions reached 2.95 × 10-5 (S/cm).