In the context of electric vehicle batteries, consider the following elements :
I. Cobalt
II. Graphite
III. Lithium
IV. Nickel
How many of the above usually make up battery cathodes?
1
Only one
2
Only two
3
Only three
4
All the four
In the context of electric vehicle batteries, consider the following elements :
I. Cobalt
II. Graphite
III. Lithium
IV. Nickel
How many of the above usually make up battery cathodes?