Safely solder emoli ?

[BigusLightus]

I finally ordered the LBA10 balance adapter for my Hyperion charger and no longer need to charge batts one at a time. I would like to make packs out of my loose 26700 emoli cells.



Is it safe to solder wires and/or copper straps to the top and bottom of these cells? Are there any special needs I should be aware of?



Thanks