Theoretical formula of Li-ion battery tabs design

Conventional lithium-ion batteries use aluminum tabs for the cathode tabs and nickel tabss for the anode tabs, but nickel tabs have poor electrical conductivity. During high-magnification discharge, the low conductivity of anode tabs leads to high surface temperature of the battery, which affects the high-magnification discharge performance of the battery, but the nickel-plated copper anode tabs have excellent electrical conductivity, and their electrical conductivity is close to that of pure copper.
In addition, the influence of the battery tabs material, size and tabs lead-out method on the multiplier discharge performance and multiplier cycle performance of lithium-ion batteries.Generally speaking, the current on the wire is proportional to the cross-section of the wire, that is, the larger the cross-section area of the wire, the greater the current allowed to pass through. The choice of battery tabs size is determined not only by the type of battery, but also by the maximum discharge current of the battery.