What thickness of pure nickle strip to use?

Im planning to make 60V 20Ah battery pack with EVE 33V cells. They have nominal voltage of 3.6V. They have 3200mAh and max continuous dishcarge rating of 10A. I dont know what thickness of nickle strip to use. Im planning to use 10mm wide and 0.15mm thickness. But from what i reading on series connection that would be disaster. So im thinking that i need to solder some copper wires to series conncetion. Please help and sorry for my bad english.

Depends on your use case's possible peak total amps.

relevant

https://endless-sphere.com/forums/viewtopic.php?p=1680457#p1680457

0.15 by 8mm every time. That is the thickest that welds perfectly with many machines and the widest that fits in battery holders. Good to clean with contact cleaner first.