Performance of 8021 aluminum foil in soft pack battery aluminum plastic film

Updated : Dec. 21, 2023
Table of Contents
  1. The role of aluminum plastic film for soft pack batteries
  2. Learn about 8021 aluminum foil for soft pack batteries
  3. 8021 aluminum foil for soft pack battery aluminum plastic film
  4. Why choose 8021 aluminum foil for soft pack battery aluminum plastic film?
  5. Advantages of using 8021 aluminum foil for soft pack batteries
  6. Soft pack battery 8021 aluminum foil safety precautions
  7. Conclusion

The surge in global demand for portable electronic devices has spurred innovation in battery technology, leading to the importance of pouch batteries. One of the key components of soft-pack batteries is aluminum-plastic film, in which 8021 aluminum foil plays a decisive role.

8021 aluminum foil in soft pack battery

The role of aluminum plastic film for soft pack batteries

The aluminum-plastic film in pouch cells acts as a protective barrier, providing an effective sealing solution for the electrolyte and other internal components. The membrane is lightweight, flexible and, most importantly, impermeable to gases and moisture. 8021 aluminum foil is the preferred material for manufacturing the aluminum layer of this film due to its unique properties.

  • 1. Aluminum plastic film has high barrier properties, good cold stamping formability, puncture resistance, electrolyte resistance, high temperature resistance, insulation, etc.
  • 2. It is packaged in aluminum-plastic film, which has the characteristics of small size, light weight, high specific energy and high safety. In the event of a safety hazard, the soft-packed battery will only inflate and crack at most, but will not explode.

Learn about 8021 aluminum foil for soft pack batteries

8021 aluminum foil is an alloy belonging to the 8xxx series, known for its excellent strength, flexibility and corrosion resistance.

In pouch batteries, the thickness of the foil (usually 0.02 to 0.2 mm) is critical to maintaining the flexibility of the aluminum-plastic film. In addition, 8021 aluminum foil has high thermal conductivity, which helps to effectively dissipate the heat generated during battery operation.

Aluminum plastic film is mainly composed of nylon layer, aluminum foil layer, heat sealing layer and adhesive for bonding. Aluminum foil is the raw material of aluminum plastic film for soft pack batteries, mainly 8021 aluminum foil, and its state is O state.

8021 aluminum foil for soft pack battery aluminum plastic film

  • Alloy: 8021 aluminum foil, 8079 aluminum foil
  • Status:O
  • Thickness: 0.025-0.055mm
  • Width: 100-1650mm

soft pack battery aluminum plastic film

Why choose 8021 aluminum foil for soft pack battery aluminum plastic film?

1. Impermeability and barrier properties

One of the main reasons why 8021 aluminum foil is used for soft pack battery aluminum plastic film is its excellent impermeability. The foil acts as a barrier against moisture, gases, and other external factors that can compromise the integrity of the battery. This impermeability is critical to maintaining the stability and performance of the battery over its lifetime.

2. Flexibility and adaptability

By design, pouch batteries require flexible materials to accommodate the dynamic shapes and sizes of modern electronic devices. The inherent flexibility and conformability of 8021 aluminum foil makes it an ideal choice for the aluminum layer in the film. This flexibility ensures that the aluminum-plastic film can bend and bend without affecting the structural integrity of the battery, allowing for a versatile and space-saving design.

3. Heat dissipation and thermal conductivity

Efficient heat dissipation is a key factor in battery performance and safety. The high thermal conductivity of 8021 aluminum foil facilitates the rapid transfer of heat from the battery, preventing overheating and ensuring optimal operating conditions. This property is particularly important in high energy density applications, such as electric vehicles, where thermal management is a key consideration.

Advantages of using 8021 aluminum foil for soft pack batteries

1. Lightweight design

The lightweight properties of 8021 aluminum foil help reduce the overall weight of soft pack batteries. This not only enhances the portability of electronic devices, but also helps reduce the overall weight of electric vehicles, helping to improve energy efficiency and driving range.

2. Enhance security

The impermeability of 8021 aluminum foil prevents external contaminants from entering, adding an extra layer of safety to pouch cells. This is especially important for sensitive electronic devices, as even minor exposures to moisture or gas can compromise battery functionality and safety.

3. Cost-effectiveness

The cost-effectiveness of 8021 aluminum foil stems from its lightweight design, ease of processing and recyclability. The foil can be recycled without sacrificing its essential properties, aligning with sustainability goals and helping to reduce the environmental impact of battery production.

Soft pack battery 8021 aluminum foil safety precautions

1. Battery manufacturing regulatory standards

The battery industry is subject to strict regulations and standards to ensure product safety. The 8021 aluminum foil used in pouch batteries complies with various international standards, including those set by organizations such as the International Electrotechnical Commission (IEC) and Underwriters Laboratories (UL).

2. Safety features of soft pack batteries

The use of 8021 aluminum foil is critical to the integration of safety features in pouch batteries. These features may include flame retardant properties and enhanced thermal stability, both of which help prevent thermal runaway and minimize the risk of fire in the event of a failure.

Conclusion

8021 aluminum foil becomes a key component in the manufacturing of aluminum plastic films for pouch batteries, contributing to the success of the growing market for flexible lightweight energy storage solutions. The foil's unique combination of properties, including impermeability, flexibility and high thermal conductivity, make it the material of choice for ensuring the safety, reliability and performance of pouch batteries.

As demand for portable electronic devices and electric vehicles continues to grow, the role of 8021 aluminum foil in battery technology is likely to expand, driven by continued research and innovation in materials science and energy storage technology.

Related Topics: Flexible Packaging Aluminum battery Aluminum battery packaging Aluminum battery shells Aluminium lithium-ion battery

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