UPSC » In the context of electric vehicle batteries, consider the following elements

In the context of electric vehicle batteries, consider the following elements

Q. 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

3. विद्युत् वाहन बैटरियों के संदर्भ में, निम्नलिखित तत्त्वों पर विचार कीजिए :

I. कोबाल्ट
II. ग्रेफाइट
III. लिथियम
IV. निकेल

उपर्युक्त में से कितने सामान्यतया बैटरी के कैथोड बनाने के लिए उपयुक्त होते हैं?

(a) केवल एक
(b) केवल दो
(c) केवल तीन
(d) सभी चार

Answer: (c) Only three

Explanation:

  • Cobalt, Lithium and Nickel are used as cathode in electric vehicle batteries while Graphite is used as anode.
  • The most common cathode materials in electric vehicle (EV) batteries include lithium iron phosphate (LFP), nickel-manganese-cobalt (NMC), and lithium nickel cobalt aluminum oxide (NCA).
  • Graphite is primarily used for the anode, not the cathode, of electric vehicle (EV) batteries

Source: https://economictimes.indiatimes.com/industry/renewables/how-do-electric-vehicle-batteries-work/articleshow/95529209.cms?from=mdr