Battery Aluminum Foil

In recent years, aluminum has been widely used as cathode foil in lithium-ion battery manufacturing. Notable applications include consumer electronics and power tools, as well as hybrid and electric vehicles. GNEE is a leading marketer and supplier of high-performance aluminum foil rolls for battery manufacturing. Our product line includes high purity etched aluminum foil and battery grade foil made from various alloys (1050, 1060, 1070, 1100, 1235).

Application of battery aluminum foil
As lithium-ion batteries grow in importance, we are starting to see them in electronic devices that we use every day, such as laptops and cell phones.

There are many components that enable optimal performance from a lithium-ion battery, one of which is the current collector.

When the current collector comes into contact with the battery components during operation, its electrochemical performance must be stable. Ensuring battery performance and safety is very important here. Therefore, it is very important to form a thick and dense protective film on the metal surface of the battery. Because corrosion of the battery membrane can cause a short circuit, this is an unsafe situation for all of us.

Aluminum foil, which is used as a cathode material for lithium-ion batteries, is a good candidate for current collectors because it has several advantages in use. Aluminum has a lower specific gravity, lower resistivity, and higher thermal conductivity. Furthermore, aluminum does not dissolve at high action potential levels in non-aqueous electrolyte solutions such as lithium-ion batteries. These properties make aluminum a good choice for cathode current collectors in lithium-ion batteries. With these properties, porous aluminum can also help reduce the weight of component materials and improve the heat transfer and performance quality of lithium-ion batteries.

There are some ways to improve the performance of aluminum foil. Recently, carbon-coated aluminum foil has begun to be used in lithium-ion batteries. This foil reduces the overall charge transfer resistance, improves adhesion at the active layer/current collector interface, and also prevents aluminum corrosion caused by organic electrolytes and even alkaline slurries.

Specifications of Battery Aluminum Foil