What is galvanic cell

cell is an electrochemical cell that uses the transfer of electrons in redox reactions to supply an electric current. This cell is driven by a spontaneous chemical reaction that produces an electric current through an outside circuit. Galvanic cell reactions supply energy, which is used to perform work. For this reason, galvanic cells are commonly used as batteries. In the real world, the word battery has come to include a single galvanic cell, but a proper battery consists of multiple cells. A galvanic cell consists of at least two half cells, a reduction cell and an oxidation cell. Chemical reactions in the two half cells provide the energy for the galvanic cell operations. Many galvanic cells are of commercial importance. These include dry cells, mercury cells, rechargeable Ni-Cd batteries, fuel cells and lead storage cells. A common galvanic cell is the Daniell cell.

Which derives electrical energy from spontaneous redox reaction taking place within the cell