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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?

UPSC Β· 2025 Β· Environment
Question:
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?

Options

(a) Only one
(b) Only two
(c) Only three
(d) All the four
Answer: (c) Only three

Explanation:
Cobalt, Lithium, and Nickel are used in cathodes, while Graphite is generally used in anodes.

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