This ceramic separator, model MA-EN-SE-0024 from Canrd, is designed for lithium-ion battery research and development, particularly where enhanced safety and electrochemical stability are required. It features a 12 µm polyethylene base film with a single-side double-coated structure: a 4 µm ceramic (CCS) layer improves thermal shrinkage resistance, while a 2 µm PVDF (PCS) top coating promotes strong adhesion to the positive electrode, thereby improving interfacial contact, electrode hardness, and cycling performance. The PE substrate has a melting point of approximately 140 °C, adding a margin of thermal safety. Commonly used in laboratory-scale cell assembly and performance evaluation, this separator supports studies on high-safety, high-durability energy storage systems. Its tailored coating design makes it relevant for researchers exploring interface engineering and thermal management in advanced battery materials.