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?
- A.Only one
- B.Only two
- C.Only three
- D.All the four
Show answer
Cobalt, lithium and nickel are cathode materials, while graphite is used for the anode. A lithium-ion battery has a positive electrode (cathode), a negative electrode (anode) and an electrolyte through which lithium ions move.
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