Collection: Separators & Membranes

Battery Separators and Membranes for Laboratory Cells

Compare battery separator films and membranes for lithium-ion, sodium-ion, lithium-sulfur, supercapacitor and other electrochemical research. Available formats include PP and PE microporous film, PP/PE/PP trilayer separators, ceramic-coated separators, cellulose membrane, glass-fiber membrane and pre-cut coin cell separator discs.

Before selecting a separator, confirm thickness, width or disc diameter, porosity, electrolyte wettability, thermal behavior, coating structure and pack quantity. A separator must also fit the electrode diameter and available stack height of the intended cell hardware. Product listings distinguish rolls, sheets and pre-cut formats so laboratory buyers can compare like-for-like configurations. For a complete assembly workflow, also review coin cell parts, electrode sheets and disc cutting and cell preparation tools.