Chapter 19, Problem 19.35QP

Interpretation Introduction

Interpretation:

The difference between non-rechargeable and rechargeable batteries has to be explained.

Concept introduction:

Batteries can be subdivided into two broad classes’ i.e. primary and secondary batteries.  Dry cell and alkaline battery falls under category of primary batteries, while lead storage battery and Lithium ion battery was designated as secondary batteries, such classification was based on the reversibility of the electrochemical reaction taking place in the cell. In case of primary batteries the electrochemical reaction of the cell is irreversible; the battery cannot be recharged and reused, once all the reactants were utilized for the redox reaction to produce electric the battery has to be thrown. But in secondary batteries the redox reaction can be reversed by supplying electric energy to cell. Thus the battery is restored to its original composition through external potential. Even though, Secondary batteries cannot be indefinitely recharged due to ageing mechanism.  

To differentiate: Non-rechargeable and rechargeable batteries