Brief Explanation of Storage Batteries

Storage Batteries

The term storage battery has been used for many years as the name for a battery of secondary cells, and particularly for lead-acid batteries

A cell is a source of e.m.f in which chemical energy is converted into electrical energy

Picture of Storage Batteries

.A cell is a D.C source device in which difference of electric potential is established between the two electrodes as a result of chemical reactions between the electrodes and the electrolyte. A cell essentially consists of the following active materials:

1.       Positive electrode (plate or rod)

2.       Negative electrode (plate or rod)

3.       Electrolyte and a container

The e.m.f of a single cell is generally small (1.5/2 V or so) so that current delivered by it to the external circuit is quite low. Many commercial applications require appreciable D.C supply. Under such conditions, a number of cells are connected electrically usually in series (or parallel). Such a combination of cells in known as a battery. Batteries are playing an important role in may industrial and commercial applications e.g. transistor radios, telephone exchange, electrical sub-stations, generating stations, mines etc.

Accumulator is a term sometimes applied to a storage battery.