…flattened copper tube as a busbar, nickel strip connecting cells, cells that can be assembled and disassembled. …it sounds like the described approach is similar to the “batt-o-matic” design:
Yes?
I’ve been working on something similar. I have the battery sleeves, trays, and lids printed. Though, I’ve not assembled the busbars and nickel strips; so I’ve not connected and tested the packs.