Current lead is an important part of a cryogenic device, and it is also one of the main sources of heat loss of the system.

In view of the problem of low universality and low automation degree of the current lead-acid battery cutting device, we design a new device to solve those problems.

After the shape factor of the current lead is determined, an important task is to ascertain the section area, and then, with the shape factor to determine the length of current lead.