The current carrying capacity of high-voltage wiring harnesses for electric vehicles in the future will be four to five times that of existing ordinary electric vehicle cables. In terms of wire harness size, if copper is selected as the conductor material, the cross-sectional area of the wire harness used will increase from 50mm2 to 200mm2, or even higher.
However, how to reliably connect these larger cross-section cables is a major technical challenge for automakers. At the same time, the rapid update and iteration of electric vehicles has also brought about the exploration of technical points such as how to arrange and accommodate these cables, cable lengths, and low internal resistance connection processes inside the vehicle. Ideally, the cable length should be as short as possible to obtain the performance of low internal resistance and low temperature rise. However, it is usually impossible to shorten the length of the cable inside the actual electric vehicle, so the diameter of the cable needs to be increased accordingly to ensure low internal resistance and good heat dissipation.