Lithium Battery Aluminum Foil

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Lithium battery aluminum foil is becoming increasingly popular in the battery industry due to its ability to provide superior performance and longer service life. The foil is used to wrap cells and help with heat dissipation and electrical insulation. This material is also highly resistant to corrosion and oxidation, which makes it an ideal choice for high-performance batteries.

What Is Lithium Battery Aluminum Foil

Lithium Battery Aluminum Foil is a specialized type of aluminum foil specifically designed for use in lithium-ion batteries, which are widely used in various electronic devices, electric vehicles, and renewable energy systems. It serves as an essential component within the battery structure, providing multiple functions and contributing to its overall performance and safety.

Aluminum Foil For Battery

Aluminum Foil For Battery

Lithium Battery Aluminum Foil is typically made from high-purity aluminum with precise specifications to meet the requirements of battery manufacturers.

Commonly Used Alloys Of Lithium Battery Aluminum Foil

Lithium Battery Aluminum Foil is typically made from aluminum alloys that are specifically formulated to meet the requirements of lithium-ion batteries. These alloys possess specific characteristics that make them well-suited for use in battery applications. While the exact alloy composition may vary among manufacturers, here are some commonly used alloys for Lithium Battery Aluminum Foil:

Aluminum Alloy 1235: This alloy is widely used in Lithium Battery Aluminum Foil production. It is a high-purity aluminum alloy with excellent electrical conductivity and good formability. 1235 aluminum foil exhibits high thermal resistance and is suitable for applications requiring lightweight and flexible foils.

1235 Aluminum Foil For Battery

1235 Aluminum Foil For Battery

Aluminum Alloy 1060: Another commonly used alloy, 1060 offers good electrical conductivity, high purity, and excellent corrosion resistance. It is known for its high ductility and ease of processing, making it suitable for various Lithium Battery Aluminum Foil applications.

Aluminum Alloy 8021: Alloy 8021 is a high-strength aluminum alloy that provides improved mechanical properties compared to alloys like 1235 and 1060. It offers excellent barrier properties against moisture, gases, and light, making it suitable for applications where enhanced protection is required.

Aluminum Alloy 8079: Alloy 8079 is a high-strength aluminum alloy with enhanced tensile strength and elongation properties. It exhibits excellent barrier performance against moisture, oxygen, and other contaminants. Alloy 8079 is often used for Lithium Battery Aluminum Foil in applications where high barrier properties and mechanical strength are crucial.

Lithium Battery Aluminum Foil

Lithium Battery Aluminum Foil

These alloys are chosen aluminum foil for battery production due to their specific combination of properties, including electrical conductivity, thermal resistance, flexibility, formability, and barrier performance. The selection of the alloy depends on factors such as battery requirements, manufacturing processes, and desired performance characteristics.

Specifications of Lithium Battery Aluminum Foil

Use Battery soft package Lithium battery
Typical alloy 8021, 8079 1050, 1060, 1070, 1100, 1235
Temper O, H*4, H*8
Thickness (mm) 0.015-0.2
Width (mm) 100-1600
Length (mm) Coil
Treatment mill finish
Price terms LC/TT/DA/DP
Packaging Standard seaworthy export packaging. Wooden pallets with plastics protection for the coil and sheet.

1235 alloy aluminum foil with different thicknesses (width 10mm)

Standard thickness/mm 0.0060 0.0070 0.0080 0.0090 0.010 0.11 0.16
Maximum resistance/(Ω.m) 0.55 0.51 0.43 0.36 0.32 0.28 0.25

What are the characteristics of battery aluminum foil?

  • Conductivity: Lithium Battery Aluminum Foil exhibits excellent electrical conductivity, allowing for efficient flow of current within the battery.
  • Thickness and Width: The foil is available in various thicknesses and widths, which can be tailored to meet specific battery design requirements.
  • Barrier Properties: Lithium Battery Aluminum Foil acts as a barrier, preventing the permeation of moisture, oxygen, and other contaminants that could negatively affect battery performance and longevity.
  • Heat Resistance: The foil demonstrates high thermal resistance, ensuring that it can withstand the elevated temperatures generated during battery operation without deformation or degradation.
  • Flexibility: Lithium Battery Aluminum Foil is flexible, making it easy to incorporate into the battery manufacturing process, including winding and stacking electrodes.

By utilizing Lithium Battery Aluminum Foil, battery manufacturers can enhance the overall performance, reliability, and safety of lithium-ion batteries. Its properties help optimize the battery’s energy storage capabilities, improve charge/discharge efficiency, and minimize the risk of thermal runaway or other safety hazards.

Where Is The Aluminum Foil Used In The Lithium Battery

Where Is The Aluminum Foil Used In The Lithium Battery

Benefits of Aluminum Foil Battery

  • Longer battery life – 5 times more than lead-acid batteries.
  • Low self-discharge.
  • Steady discharge and charge performance.
  • Outstanding thermal stability.
  • Wide temperature performance.
  • Short circuit protection.
  • Overcharge and over-discharge protection.
  • Over-current protection.
  • Easy carrying and installation – can be carried and installed in any direction.
  • Fast charging – about 4~6 hours to be fully charged.
  • Lighter weight – 1/2~1/4 in weight compared to LA batteries.
  • Require no change to a lead-acid battery charging system.
  • Better safety – mild warm, no explosion and firing, free of leakage.
  • Environmentally friendly – no poisonous lead, no acid, no heavy/rare metals.
  • No gasses during charge, free of leakage and pollution.
Aluminum Foil Packaged Battery

Aluminum Foil Packaged Battery

Huawei Aluminum Quality Control of Battery Aluminum Foil

First, the surface of the aluminum foil is uniform, clean and flat, without obvious roller marks, pits, pinholes and corrosion marks;

Second, there are no rolling defects such as creases, mottling and bright lines on the surface of the aluminum foil;

Third, there is no color difference on the surface of aluminum foil;

Tourth, surface is free of oil, no serious oil smell, and no oil spots visible to the naked eye;

Fifth, surface tension, the dyne pen test is not less than 32 dyne;

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