21700 Battery Fish Paper Insulation Gasket | 2 Cell Battery Insulation Sheet | Flame Retardant Fish Paper for Lithium Battery Pack | Custom Die Cut Battery Insulation Paper
Custom 2-Cell Solid Fish Paper Insulation Gasket for 21700 Lithium Battery Packs, designed to provide reliable electrical insulation and flame retardant protection between battery cells. Made from high-quality fish paper (vulcanized fiber insulation material), it features excellent dielectric strength, heat resistance, and mechanical durability.