Which key minerals power the lithium-ion batteries in electric vehicles?
elements.visualcapitalist.com
This is a breakdown of the cells in the average EV battery, and a quick google search seems to indicate the cells are about 60 percent of the weight, with the rest being housing/cabling/etc (mostly easily recycled metals)
So the battery is 30% graphite which you can recycle, or not. It isn't hazardous and is actually used in your water filters and such. About 60% are easily recycled metals (nickel, steel, aluminum, copper), but also can just be chucked in the ground if you don't want to waste time recycling because they're not particularly dangerous.
Around 12% (of that 60% of the battery weight) or about 7% of the total battery weight are the items of concern (cobalt, manganese, and lithium.
So yeah, easily recyclable or if you don't care to recycle easy to separate the overwhelming majority of the material which is safe to chuck wherever.
Again, I know you don't actually care. Hell, that clip is from Australia, shouldn't they just dump the crap off coast to make a new reef or something?