Battery aluminum foil is mainly used as the collector of lithium-ion battery and the collector of current. Folia de aluminiu pur comună a bateriei cu litiu are mărci de aliaj, cum ar fi 1060, 1050, 1145 și 1235, cu starea O, h14, h18, H24 și H22, iar intervalul de grosime este 10-50 microni. Folia de aluminiu pentru baterie are multe caracteristici excelente, 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. În prezent, 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, curat, 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. În general, 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.