Battery Pouch Material

Multi-layer battery pouch film for modern laminated-type lithium-ion cells.
Lightweight, shape-flexible and ideal for xEV and portable device battery applications.

Advanced Film-Based Pouch Solution for Next-Generation Lithium-Ion Batteries

NAGASE’s battery pouch materials are multilayer plastic films designed to replace metal containers in lithium-ion battery packs. These films provide high-level sealing, barrier performance, and mechanical protection, while drastically reducing weight and enabling flexible battery designs.

Initially developed for information devices such as smartphones, tablets, and laptops, the material is now trusted in demanding e-mobility applications. Our pouch films meet the strict safety and longevity requirements of the xEV industry (including EVs, PHVs, and HEVs), making them an excellent alternative for laminated-type lithium-ion batteries.

NAGASE supplies battery pouch films globally for consumer electronics and electric mobility applications, offering customized solutions and technical support for long-term energy stability.

Close-up of an electric vehicle (EV) being charged at a charging station, representing battery pouch material applications in e-mobility, supplied by NAGASE.
Laminated lithium-ion battery pouch cell showcasing the use of flexible multilayer pouch materials for EV and portable electronics, supplied by NAGASE.
Battery module containing multiple laminated pouch cells, demonstrating the scalable integration of pouch-type lithium-ion batteries in EV systems, supplied by NAGASE.
Icon showing sealed layers with vapor above, representing air-tight properties of the battery pouch material.
Icon of a corrosive liquid impacting a surface, symbolizing chemical resistance against electrolyte and hydrofluoric acid.
Icon of compressed layers with sealing indication, representing strong seal integrity of the pouch film.
Icon with a flame bouncing off a surface, illustrating high thermal resistance.
Icon showing a forming die around material edges, representing the film’s ability to be shaped and molded easily.
Icon of arrows deflecting from a surface, symbolizing electrical insulation characteristics of the pouch film.

Applications

This pouch material is used in high-performance lithium-ion batteries where weight, space, and flexibility matter.

  • Electric vehicles (EVs) with laminated battery pack designs
  • Plug-in hybrid vehicles (PHVs) requiring compact battery modules
  • Hybrid vehicles (HVs) where weight reduction is key
  • Consumer electronics including smartphones and tablets
  • Rechargeable energy storage systems in slim form factors

Features

The pouch material delivers durability, flexibility, and protection for long-lasting lithium-ion battery packs.

  • Lightweight alternative – Replaces metal containers with flexible plastic layers
  • Multi-layered construction – Combines mechanical strength and sealing reliability
  • Excellent barrier properties – Protects against moisture and gas permeation
  • Shape-conformable – Supports slim, customized battery designs
  • Automotive-grade durability – Suitable for EV, PHV, and HV applications

Additional Information

  • Our Global Record
    » Highly recognised in the global market
    » Over 30 years’ experience for automotive and mobile applications
    » Excellent safety record for larger-sized batteries for over a decade

Frequently Asked Questions about Battery Pouch Material

What are battery pouch films used for?
They are used as flexible enclosures for lithium-ion batteries in electric vehicles and consumer electronics, replacing traditional metal casings.

Why is flexibility important in battery packaging?
Flexible pouch films allow for slim, space-efficient designs, especially in curved or irregular spaces within electric vehicles or devices.

Are these materials safe for automotive use?
Yes, they meet rigorous safety and durability standards for EVs, PHVs, and HVs, including mechanical strength, sealing integrity, and chemical resistance.

Do the films protect against moisture?
Absolutely. The multilayer structure provides excellent barrier properties against moisture, gases, and external stressors.

How long have these films been used in industry?
They have been in use since the late 1990s and are now widely applied in both portable electronics and e-mobility solutions.

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Mobility

Tobias Back
Sales Manager