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Publish Time: 2022-06-16 Origin:https://www.hmaluminumsupply.com
Lithiium battery is composed of positive current collector (current collector electrode), box, sealing plate, negative plate and so on. The requirements for the corresponding materials are: the current collector foil should not only have high strength and electrical conductivity, but also should be flat.
The box material should have high strength and formability, as well as good expansion resistance; the sealing material should have good formability and laser weldability; the laminated packaging aluminum material should have high strength and formability; the bus bar must has high strength and electrical conductivity, and good bending workability.
The aluminum foil for lithium ion battery usually refers to the positive electrode foil of lithium ion battery, which is actually not accurate enough. It is better to call this non-modified positive electrode foil with a thickness of about 0.1mm as current collector aluminum foil to distinguish it from other aluminum foils for batteries, such as foils in aluminum-plastic films for battery soft packs.
The positive electrode is composed of a positive electrode current collector, a high temperature tape, a positive electrode substrate and a positive electrode material. The positive electrode current collector choose 8011, 1N30, 3003,1070, 1060, 1235, 1230, 1100 aluminum foil. Amont them, 1235, 1070, 1100, 3003 alloys are used much because they have high strength.
The shell is made of thin aluminum plate, which requires high formability and strength, and should have excellent pressure resistance, which can suppress the expansion of the shell caused by repeated charging and discharging. The seal is welded by laser, so it should have excellent laser weldability, and at the same time, there will be no large work hardening in the stage of processing the anti-riot valve.
Since the oil on the surface of 1100 aluminum foil cannot be completely removed, and the surface tension is greatly affected when the surface is not flat, it is not practical to measure the contact angle directly, so the dyne value is used in production practice to reflect the moisturizing effect. Welcome to leave message below to inquire what you need.
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.