I've read that recyclers use a crowbar to remove the batteries because of the adhesive before shredding recycled laptops.
iFixIt has an adhesive removal chemical kit, but they can't/won't ship outside the US
https://www.ifixit.com/Store/Tools/i...ve/IF145-400-4
I probably wouldn't bother trying without some kind of chemical to dissolve the adhesive.. heat, you'd probably need enough that the batteries would explode considering they're attached to what amounts to a giant aluminum heat sink.