Keeping Them Apart

hello BLF, I have a small Pelican 1010 Micro style case and have a few 18650 and NiMh batteries together. also a few 2032 Lithiums.

is this ok or should I separate them / could they drain each other somehow or a danger of fire risk?
they are all loose.

could I put them into a smaller case and then into the Peli case then?.
thanks.

2032 definately could shourt themselves out on 18650 metal parts