Are batteries harmful to the environment?

All harmful substances have been removed from almost all batteries in recent years.
Only NiCd rechargeable and lead-acid batteries still contain heavy metals.
Many of these batteries are already collected separately according to European directives.
The battery industry is busy developing alternative designs for these batteries in order to reduce the environmentally harmful proportion entirely.
The NiMH and zinc-air battery is an example of these developments.
Li-ion is another example.