Hi guys,
I have been looking at using EIG cells for my eCRX project, and they terminate in much the same way as the A123 cells. I put this picture in the Wanted thread but a mod can feel free to remove it if they think it belongs here.
Basically I thought about taking a PCB with pads I can solder M4-tapped brass blocks to. There are two slots either side of the block (1 mm wide) which allow the two paralleled cell tabs to slide through, and bend over the block; one one way, the other the other way. The tabs would be pre-trimmed and punched with holes at the right spots. 1.6 mm copper plate with 4 mm countersunk holes would hold the tabs down while making the series connection to the next terminal. I thought about putting traces down for the balance taps, but wires to plugs would work just as well.