Prevent internal short circuits
Maintain physical separation between the positive and negative electrodes.
BSF Materials™
Advanced separator materialsfor safer lithium-ion batteries.
High-performance PE, PP and coated films engineered for global lithium-ion battery manufacturers.
Safety layer
The material behind battery safety.
Separator film performs four critical functions inside every lithium-ion cell.
Enable ion transport
Support electrolyte movement through a controlled porous structure.
Improve thermal safety
Provide a material platform for stable cell behavior and functional coatings.
Support long battery life
Help preserve consistent separation throughout repeated cell operation.
Separator film solutions.
Wet Process PE Separator Film
Ultra-thin base separator film with high tensile strength, high porosity and excellent consistency.
3-20 μmView productEngineering performance into every micron.
3-20 μmWet process PE thickness range
High tensile strength
High porosity
Thermal stability
Batch consistency
Final specifications are matched to cell design and process requirements.
Separator materials for demanding cell platforms.
Electric Vehicles
Energy Storage Systems
Consumer Electronics
Power Tools
Industrial Batteries
Manufacturing excellence.
Precision film production depends on controlled processes, stable handling and consistent quality decisions.
- Advanced production lines
- Precision process control
- Stable production capability
- Global supply support
Quality control
Quality you can trust.
Quality control connects incoming materials, online monitoring, performance testing and batch records.
Incoming Material InspectionOnline MonitoringPerformance TestingBatch Traceability
See our quality approach
Technical resources for qualified projects.
Request the documents relevant to your material evaluation and application.
Product Datasheets
Available on request
Request documentTechnical Specifications
Available on request
Request documentTesting Reports
Available on request
Request documentCertificates
Available on request
Request documentDiscuss your separator requirements.
Share your cell application, material target and expected demand with our technical team.
Request Separator Solution[email protected]