You can still get the old Sanyo Cadnica NiCd cells. Panasonic bought out the rights to the Sanyo name.
https://uk.rs-online.com/web/p/c-rec...eries/3777933/
Still lots of advantages to NiCd cells: easy to charge, reasonable self-discharge rate, pretty reliable and work in very low temperatures, almost impossible to knacker. I used them for years in radio control stuff and CB equipment.
EU is cutting down on them though; you can't ship them in new products. Only available as replacements now. This is due to the nice oodles of toxic cadmium in them. Can still recycle the things; no one wants to do it though.
Now we have low self-discharge NiMh like Eneloops, things are quite a bit nicer environmentally. Considerably more of a dick to charge though.
Oh need to add something here: NiCd cells don't have a memory like everyone thinks they do. I have experimented with this extensively with probably 100 or so NiCd cells from Sanyo towards the end of the 1990s and there is no evidence to support this actually happens.