High-Barrier Film for Battery Packaging
LD PACK’s high-barrier film for battery packaging is purpose-built for pouch lithium battery encapsulation, covering applications from consumer electronics and energy storage to EV power batteries. With exceptional barrier performance, outstanding resistance to electrolyte corrosion, and reliable heat-seal strength, it delivers comprehensive protection for battery internal components — extending service life and giving you a competitive edge in the new energy market.
Applications
Consumer electronics batteries (smartphones, tablets, wearables)
Medical device and specialty equipment batteries
Features
- High-Barrier Multi-Layer Structure: Nylon / Aluminum Foil / Polypropylene composite design effectively blocks moisture, oxygen, and electrolyte penetration to safeguard battery safety.
- Thermal Lamination Process: Adhesive-free thermal lamination ensures superior interlayer bonding, durability, and wide-temperature resistance.
- Excellent Heat-Seal Performance: Maintains high heat-seal strength across a broad temperature range, ensuring robust sealing and improved battery processing efficiency.
- Pouch Safety Advantage: Unlike metal-can batteries, pouch-format cells do not accumulate internal pressure — in abnormal conditions, deformation occurs instead of explosion, offering a higher safety profile.
Benefits
- Electrolyte Corrosion Resistance: The inner PP heat-seal layer offers high tolerance to lithium battery electrolytes, effectively preventing corrosion and leakage to extend battery lifespan.
- Lightweight Design: Significantly lighter than metal casings, enabling slimmer and lighter battery packs and end products.
- Highly Customizable: Thickness, width, and layer structure can be tailored to suit various battery types and manufacturing processes.
- Consistent Mass Production: Mature thermal lamination process delivers high product consistency, ensuring stable and efficient customer production lines.
Materials
- Standard and custom structures available
- Standard structure: Nylon (outer layer) / Aluminum Foil (middle barrier layer) / Polypropylene PP (inner heat-seal layer)
- Lamination process: Thermal lamination (adhesive-free) for superior bonding strength and temperature resistance
- Layer thickness and material specifications customizable upon request