With reference to Li-Ion battery, consider the following statements comparing them to Lead Acid batteries.

1.It maintains constant voltage throughout the entire discharge cycle, unlike Lead Acid batteries.

2.It is usually heavier than Lead-acid batteries of the same capacity.

3.It does not contain electrolyte, unlike lead acid batteries.

Select the correct answer using the codes below.

Lithium-ion battery or Li-ion battery is type of rechargeable battery that contains several cells.
Each cell consists of cathode, anode and electrolyte, a separator between electrodes and current collectors.
In it, lithium ions move from negative electrode to positive electrode during discharge and back
when charging. Li-ion battery use intercalated lithium compound as one electrode material. Benefits of Lithium-Ion (Li-Ion) battery over Lead Acid batteries:
The lithium-ion battery is light weighted and is one-third the weight of lead acid batteries.
It is nearly 100% efficient in both charging and discharging as compared to lead battery which has 70% efficiency.
It completely discharges i.e. 100% as compared to 80% for lead acid.
The rechargeable lithium-ion battery has life cycle of 5000 times or more compared to just 400-500 cycles in lead acid.
It also maintains constant voltage throughout the entire discharge cycle whereas voltage in lead acid battery drops consistently throughout its discharge cycle.
It is much cleaner technology and is safer for environment as it does not have environmental impact as lead acid battery.

By: kamaljeet kaur