Li-Ion Battery Separator Film, Length: 800 m, Width: 85 mm, Thickness: 25 μm

Description

Li-Ion Battery Separator Film – 25 μm Thickness, 800 m Length, 85 mm Width

The Li-Ion Battery Separator Film is a vital component in lithium-ion cell construction. It is a microporous membrane designed to physically separate the anode and cathode, preventing internal short circuits while ensuring optimal ionic conductivity. With excellent mechanical strength, thermal stability, and chemical resistance, this separator film is ideal for both R&D and commercial lithium-ion battery applications.

This product offers outstanding uniformity, low thermal shrinkage, and high puncture resistance — essential for achieving high-performance and safe energy storage in demanding environments such as electric vehicles, portable electronics, and energy storage systems.

Technical Properties

Applications

• Battery R&D and Prototyping

• Electric Vehicles & Hybrid Cars

• Consumer Electronics (Phones, Laptops, Tablets)

• Power Tools & Portable Devices

• Grid-level Energy Storage Systems

This separator film is ideal for battery designs requiring high safety standards, uniform porosity, and mechanical stability. It ensures effective ion transport while minimizing the risk of internal short-circuiting.

Graphene Integration in Lithium-Ion Cells

The separator’s role becomes even more critical when combined with next-generation electrode materials such as graphene.

Graphene in Cathodes:

• Used as lithium metal oxide–graphene composites

• Improves electrochemical performance and lithium-ion diffusion

• Enhances structural and voltage-range stability

Graphene in Anodes:

• High conductivity and ultra-thin architecture (surface area: 2620 m²/g)

• Excellent flexibility, low diffusion distance, and thermal resistance

• Boosts durability in harsh cycling environments

By integrating graphene materials with high-performance separators like this film, lithium-ion batteries reach new benchmarks in energy density, cycle life, and safety.