RE: New electrolyte puts sodium batteries on the horizon

Certainly the extraction of metals for batteries has had a very high environmental and human cost, especially lithium and cobalt, so they are looking for more sustainable alternatives, this is the point in favor of sodium, it is more abundant and geographically more available, which means less environmental impact and lower cost, Let's remember that common salt is extracted from seawater, which contains sodium, however, its long-term environmental impact should be evaluated, since like any other human activity it has an impact on the environment, especially what its disposal implies at the end of its useful life.