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Publish Time: 2021-12-22 Origin:https://www.hmaluminumsupply.com
The rapid growth of new energy vehicles has driven the demand for lithium-ion batteries. The technical requirements for aluminum foil for battery for sale is becoming increasingly fierce. This also makes battery aluminum foil the most promising variety of aluminum foil products.
Batteries are used to store power. In terms of application, they are all energy storage. Therefore, it can be said that all lithium batteries are energy storage batteries. Later, in order to distinguish applications, they are divided into consumer batteries, power batteries and energy storage batteries.
Consumer applications are in consumer products such as mobile phones, laptops, digital cameras, power tools, and electric models (accounting for 38%); power applications are in electric vehicles, electric trains, electric bicycles, and golf carts (accounting for 59%) ; energy storage applications have great potential in terms of wind-solar hybridization, energy storage power stations, base stations and backup power sources (accounting for 3%).
For lithium ion batteries, the anode chooses aluminum foil and the cathode chooses copper foil. In order to ensure the stability of the current collector in the battery, the purity of both is required to be above 98%. It requires a medium to transfer the electrical energy converted from chemical energy and requires materials with good electrical conductivity. That’s why we need aluminum foil.
Production process of aluminum foil for lithium ion battery
General aluminum processing and billet process routes are mainly divided into two methods: hot rolling (DC) and continuous casting (CC). Hot rolling has certain advantages in alloys that can be strengthened by heat treatment with high element content and with larger liquid-solid phase lines. But for battery foil that basically belong to the pure aluminum, the continuous casting and rolling process has greater advantages.
Generally, the thickness tolerance of battery and aluminum foil is within 4%, which can meet the market demand at present. The aluminum foil rolling mill mainly relies on the online thickness control system (AGC) to control the thickness. Individual battery foil users hope that the thickness tolerance of aluminum foil products should be controlled within ±2%.
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.