PET Composite Aluminum Foil Battery Current Collector

Composite aluminum foil is a high-performance material created by laminating aluminum foil with materials like paper or plastic film through multi-layer processes. This material retains the aluminum foil's inherent high barrier properties (moisture-proof, oxidation-resistant, light-blocking) while gaining flexibility and puncture resistance from the composite layers.

AOT Lithium Battery Equipment exhibition provides exhibitors and visitors with a comprehensive platform for display, exchange, cooperation and trade. By participating in the exhibition, enterprises can understand the industry dynamics, expand market channels, enhance brand image and promote technological innovation and industrial upgrading.

Q:How does the AOT-PETAF composite aluminum foil achieve its anti-shorting performance?

A: The AOT-PETAF composite aluminum foil achieves its excellent anti-shorting performance through its unique structural design. It combines an 8μm ultra-thin PET substrate with an aluminum coating of 99.35% purity. This structure not only provides good electrical conductivity but also enhances anti-shorting capability through the insulating properties of the PET substrate. In tests, the anti-shorting resistance of this composite foil reaches 40MΩ, which is much higher than that of traditional aluminum foils. This high anti-shorting performance makes it particularly suitable for high-energy batteries (such as 4680 cells) and solid-state batteries, effectively reducing the risk of thermal runaway by 60% compared to traditional foils.

Q: Can the thickness and areal density of the AOT-PETAF composite aluminum foil be customized according to specific customer requirements?

A: The standard thickness of the AOT-PETAF composite foil is 8.0μm, and the areal density is 13±0.5 g/c㎡. These parameters have been carefully designed to meet the application needs of most high-energy batteries and solid-state batteries. Although the standard specifications have been optimized, we can customize them according to specific customer requirements. If customers have specific requirements for thickness or areal density, it is recommended to contact our technical team directly. We will evaluate whether custom production can be carried out based on the customer's battery design and performance requirements.