What is a secondary cell?

A secondary cell is specifically designed to be rechargeable, meaning it can undergo multiple charge and discharge cycles without degrading its capacity significantly. This characteristic distinguishes secondary cells from primary cells, which are intended for single use and cannot be recharged. Secondary cells can store electrical energy in a chemical form and, after discharging, can be restored to their original state by applying an electrical current.

The ability to recharge makes secondary cells valuable in various applications, including portable electronics, electric vehicles, and renewable energy systems where storage and reusability are important. The rechargeability feature allows for longer-term use, reducing waste and providing a cost-effective energy solution over time.