ABSTRACT
Production, storage of electrical energy, and its conversion into other energy forms are obvious demands from current society. Batteries are power sources where chemical energy is converted into electrical energy via spontaneous electrochemical reactions. Batteries contain one or several cells where a reduction process and an oxidation process occur in two electrodic compartments lined by a solid or liquid electrolyte. Primary batteries are not designed to be recharged, whereas secondary batteries allow repeated cycles of charge/discharge.
