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Difference Between Primary Cell And Secondary Cell

we explain that primary cells are batteries that cannot be recharged, while secondary cells are the batteries that can be recharged. the basic Difference Between Primary Cell And Secondary cells is that in Primary cells, chemical reactions are irreversible and chemical energy is converted into electrical energy when a current is drawn from it. on the other hand, in secondary cells, chemical reactions are reversible and electrical energy is converted into chemical energy when current is drawn from it.

Difference Between Primary Cell And Secondary Cell in Tabular Form

Primary Cell

Secondary Cell

The batteries in which irreversible chemical reactions are used to generate electrical energy. The batteries in which reversible reactions occur and can be recharged by electric supply.
high energy density and slow discharge smaller energy density
Easy to use. Hard to use.
These cells can be used only once These cells can be used more than once.
Irreversible reactions occur in these cells. Reversible reactions occur in these cells.
These cells are used in torches and other portable devices. These cells or batteries are used in inverters and automobiles.
High internal resistance Low internal resistance
The initial cost of primary cells is cheap. The initial cost of secondary cells is high.
E.g. dry cells, Daniel cells, etc. E.g. lead-acid cell, nickel-iron cell, etc.

What is a primary cell?

A primary cell is a battery in which an irreversible chemical reaction is used to generate electrical energy is called a primary cell. you can’t recharge them again once they get discharged e.g. dry cells etc. it is a galvanic cell that is designed to be used once and discarded, and not recharged with electricity and reused like a secondary cell.

In primary cells or batteries, chemical reactions in the battery use up the chemicals that generate electrical energy. when primary batteries are gone, the battery stops producing electricity.

You cannot recharge dry cells and reuse primary batteries. They have normally high density and internal resistance. They are easy to use and have little in cost.

What is a secondary cell?

The batteries in which reversible reactions occur. The reaction can be reversed by running a current into the cell with a battery charger to recharge it. These cells can be recharged by an electric supply. Electric energy can be transformed in the form of chemical energy and then chemical energy is transformed in the form of electrical energy in secondary cells.

The cells that we use in inverters are secondary cells. These can easily recharge inverters (secondary cells) by the electric supply. secondary cells are difficult to use in comparison to the primary cell but they have a high lifetime. Secondary cells can be recharged easily.

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