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1235 Aluminum Foil For Lithium Ion Battery





Applicationcathode material of the lithium batteries

  • Ev battery foil
  • Haomei

Why choose aluminum foil for lithium ion battery

The lithium ion batteries are generally used in digital products and new energy vehicles. No matter where they are used, people hope that the energy density of the battery is as high as possible.

With the continuous improvement of technology, the weight of lithium batteries is getting lighter and lighter, the thickness and weight of current collector materials are gradually decreasing, and the volume and weight are decreasing.

Especially in new energy vehicles, there are certain requirements for battery endurance and body weight. The 1235 aluminum foil for lithium batteries has low density and light weight, which is very helpful for reducing the weight of the car body.

What is 1235 aluminum foil

1235 aluminum foil is mostly used as the cathode material of the lithium batteries. The aluminum element content of 1235 aluminum foil is not less than 99.35%. It has good anti-rust properties, formability and weldability.

Haomei Aluminum is a big aluminum foil manufacturer, which can produce 1235 aluminum foil with a thickness of 0.018-0.5mm. The common temper is O and H18. It is widely used in cables, tapes, and battery foils.

Specification of 1235 aluminum foil





Inner Diameter(mm)

Outer Diameter(mm)





75 76.2 150 152.4

It is determined by mutual negotiation.

Thickness Diviation

Width Diviation


Thickness Diviation Tolerance

High-precision grade

Normal grade



+/-0.5 mm

+/-1 mm


Thickness (mm)

N/mm2Tensile Strength

Elongation %











Why Choose Haomei Aluminum

In addition to being thin, the production of 1235 battery aluminum foil requires four major problems to be overcome, namely, surface quality, flatness, strength, and purity. At the same time, the production environment is extremely demanding, and any inclusions or dust entering will form pinholes.

From proportion, melting and casting, refining, slag removal, degassing, to filtration, casting and rolling,etc., Haomei Aluminum’ R&D team overcomes many difficulties and ensures the best 1235 aluminum foil quality.

Other applications of 1235 aluminum foil

Cigarette foil: 1235-O aluminum foil. Typical thickness is 0.006-0.007mm. The end use is for cigarette packaging after lining paper, printing or painting.

Flexible packaging foil: 1235-O aluminum foil. Typical thickness is 0.006-0.009mm. It is used for the packaging of candy, milk, dairy products, powdered food, beverages, tea,etc.

Cable foil: 1235-O aluminum foil. Typical thickness is 0.006-0.04 mm. It is for wrapping weak wires for shielding.

Capacitor aluminum foil: 1235-O aluminum foil. Typical thickness is 0.0045-0.009 mm. It is for electronic capacitor.

Tape foil: 1235-O aluminum foil. Typical thickness is 0.01-0.05 mm. It is used for various electronic products such as transformers, mobile phones, computers, PDAs, PDPs, LED displays, notebook computers, copiers, etc., where electromagnetic shielding is required internally.

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With the development of dozens of years, we, Haomei Aluminum has solid base to provide clean aluminum material for the high-end applications including lithium-ion battery, lightweight automobile body, 3c products, aluminum brazing and other special uses.

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