Battery aluminum foil is mainly used as the collector of lithium-ion battery and the collector of current. Ang karaniwang purong aluminyo foil ng lithium battery ay may mga tatak ng haluang metal tulad ng 1060, 1050, 1145 at 1235, kasama ang estado ng O, h14, h18, H24 at H22, at ang kapal ng range ay 10-50 mga micron. Aluminum foil para sa baterya ay may maraming mga mahusay na katangian, and its use is increasing year by year.
What are the requirements for aluminum foil for battery foil?
Battery foil has extremely strict requirements for aluminum foil substrate. Sa kasalukuyan, the general battery foil products generally require strength ≥ 180MPa and pure aluminum alloy.
- In terms of quality, the surface color of aluminum foil shall be uniform, malinis na, flat plate shape, no color difference, and no obvious roll marks, pits, pinholes and corrosion traces; No creases, spots, bright lines and other rolling defects; No oil, no serious oil smell, no oil spots visible to the naked eye.
- In terms of appearance, the winding tightness of aluminum foil coil shall be appropriate, the end face shall be flat and clean, and the edge shall be smooth; Staggered layer shall not exceed ± 1.0mm; The width of aluminum foil coiled tube core is greater than or equal to the foil width. Karaniwan, the length of two ends of the tube core does not exceed the foil width by 5mm; The aluminum foil shall be wound in the center of the tube core; There are clear joint marks at the two ends of the aluminum coil.