flippy said:
in NO WAY the bond wire "tric" should be used or copied by DIY people thinking its "the best solution because tesla uses it".
the reason is because tesla uses bond wires is simply because its the fastest and cheapest way to connect a thousands of cells per hour on a single processing station. the simple fact that tesla's wire bonding machines uses a ultrasonic head on itself costs about a solid quarter million a pop should give clue as to why.
even tesla wont use it in their new 4680 batteries...
Tesla uses wire bonding not because it is easy, but because it is easy to reproduce a thousand times with the required length. In addition, each of the segments work as the fuse. Also, it takes about two seconds per sell to attach two wire links.
Where did you get so much confidence about Tesla's plans? Nothing prevents Tesla from using multiple conductors per cell. Or even one or more ribbons. One 2000 x 400 micron ribbon is equivalent to four 500 micron diameter round conductors.