Consider the following statements regarding lithium-ion batteries:
I. Lithium-ion batteries are the most common batteries used in non-rechargeable devices.
II. Lithium-ion batteries are widely used in laptops, mobile phones, e-bikes, e-scooters and power tools.
III. Lithium-ion batteries can be very flammable.
Which of the above statements are correct?

Correct option is A

• Statement I is incorrect because lithium-ion batteries are secondary (rechargeable) cells. Non-rechargeable electronics generally use primary lithium cells, alkaline cells, or coin cells.
• Statement II is correct: lithium-ion technology provides high specific energy, low self-discharge, and lightweight power sources, making them the dominant choice for portable electronics and electric mobility devices.
• Statement III is correct: these batteries may undergo thermal runaway due to internal short circuit, overcharging, or external damage.
– Thermal runaway can rapidly increase temperature and pressure, leading to fire or explosion.
• Therefore, correct statements are II and III only.