Aluminum Foil

The foil in the lithium battery is very important since it is the positive current collector and the carrier of the positive paste in the battery.

Important features of lithium battery foil

1.Surface should be flat and have uniform and clean color without defects that affect the usage, such as aluminum scrap, powder, corrode spot, obvious roll marks and pressured pitting.
2.No rolling defects on the surface, such as Mottled, herringbone, bright lines, and no color difference that should affect the usage. The oil level on the surface of H18 status aluminum foil should reach 31 dynes.

Specifications