Lithium battery anode foil is a kind of material used for lithium battery positive electrode collector, the thickness of aluminum foil is generally between 10 and 50 microns. The material of lithium battery anode aluminum foil is usually high purity aluminum, with various alloy grades such as 1060, 1050, 1145, 1235, etc. These aluminum anode foils are of high purity to ensure the electrochemical performance and stability of the battery. Including -O, H14, -H24, -H22, -H18 and other states.
The aluminum anode foil has the following characteristics:
The thickness of lithium battery aluminum foil is usually between 10 and 50 microns, with uniform thickness and high precision, which can ensure the capacity and life of the battery.
Flat and smooth surface:
The surface of lithium battery anode aluminum foil is flat and smooth, no color difference, no serious oil odor, no oil spot visible to the naked eye, and the surface tension dyne pen test is not less than 32 dyne. It can ensure the electric contact and charging efficiency of the battery.
Strong corrosion resistance:
Lithium battery anode aluminium foil has good corrosion resistance, which can resist the corrosion of various chemicals, thus ensuring the stability and life of the battery.
Lithium battery anode foil can be adapted to a variety of different battery structures and manufacturing processes, with a wide range of applications.
Aluminum foil are wound loosely and tightly, with flat and clean end surfaces and smooth edges; the mislayer of aluminum foil shall not be more than ±1.0mm; the width of the core of aluminum foil is greater than or equal to the width of the anode foil, and the length of the two ends of the core is generally not more than 5mm of the width of the foil; the aluminum foil shall be wound in the center of the core; and there are clear joint markings on the joints at the two ends of the rolls.
In general, lithium battery anode foil has the characteristics of high quality, high precision and high safety, which is an indispensable and important material in the manufacture of lithium battery.