Battery aluminum foil is used as a collector for lithium-ion batteries. Typically, the lithium ion battery industry uses rolled aluminum foil as a positive collector.
Aluminum foil has thermal conductivity, electrical conductivity and mechanical strength and other properties, making it better used in lithium batteries
Common lithium battery pure aluminum foil have 1060, 1050, 1145, 1235 and other alloy grades, there are O, H14, -h24, -h22, -h18 and other states, Thickness from 10mic-50mic .
Lithium battery foil requirements are also very high, The quality requirements:
1. aluminum foil surface color uniformity, clean, flat plate shape, no obvious roll marks, pitting, pinhole, corrosion traces;
2.aluminum foil surface without creases, spots, bright lines and other rolling defects;
3.no color difference on the surface of aluminum foil;
4.no oil on the surface, no serious smell of oil and gas, no visible oil spots;
5.surface tension, dyne pen test is no less than 32 dyne;
1. the winding tightness of aluminum foil is moderate, the end face is flat and clean, the edge is smooth;
2.aluminum foil roll cross-layer shall not exceed ±1.0mm;
3.the width of the tube core of aluminum foil coil is greater than or equal to the width of the foil, and the length of the two ends of the tube core is generally no more than 5mm of the width of the foil.
4.aluminum foil should be wound in the core center;
5. the joint is clearly marked on the second end of the aluminum coil.
HTMM GROUP (Henan Tendeli Metallurgical Materials Co.,Ltd) is a professional manufacturer specialized in supplying aluminum foil, We mainly supply 1,3,8 series alloy, thickness from 0.006mm-0.2mm,width from 200mm-1700mm high quality aluminum foil. We have the roughing rolling mill, middle rolling mill and finishing rolling mill machine for 1 sets each, Foil doubling machine 1 sets, Vertical/Horizontal foil separator for 2 sets, Annealing furnace for 14 sets .The rolling machine keep the HONEYWELL thickness controlling system and ABB plate controlling system. the products quality can reach the domestic first-class level. Welcome to join us!