Galvanic cells, also known as voltaic cells, are electrochemical cells in which spontaneous oxidation-reduction reactions produce electrical energy. ... The reaction may be split into its two half-reactions. Half-reactions separate the oxidation from the reduction, so each can be considered individually.
A salt water battery employs a concentrated saline solution as its electrolyte. They are nonflammable and more easily recycled than batteries that employ toxic or flammable materials
