3 ms·
> batteries need rare earth metals "Rare earths" are a column (edit: ha ha see below) in the periodic table, and are not used in batteries. Some types of elec
by wumpus 4y ago
> batteries need rare earth metals
"Rare earths" are a column (edit: ha ha see below) in the periodic table, and are not used in batteries.
Some types of electric motors use rare earths, others do not.
Here's a primer: https://blog.ucsusa.org/josh-goldman/electric-vehicles-batteries-cobalt-and-rare-earth-metals/ https://blog.ucsusa.org/josh-goldman/electric-vehicles-batte...
- philipkglass 4y ago"Rare earths" are actually the lanthanides plus scandium and yttrium [1], not one column of the periodic table. Good information otherwise! [1] https://en.wikipedia.org/wiki/Lanthanide#Etymology https://en.wikipedia.org/wiki/Lanthanide#Etymology
- wumpus 4y agoHa ha busted! Thanks. As an astronomer I think everything beyond He is a metal.