Electrochemical cells

Electrochemical cells are devices that generate electricity through chemical reactions. They consist of two different materials called electrodes, immersed in solutions called electrolytes. When connected by a wire, these reactions cause electrons to flow from one electrode to the other, producing electrical current. This process is the basis of batteries and fuel cells. Essentially, electrochemical cells convert chemical energy into electrical energy, enabling devices to operate without needing a direct power source like a plug. They are fundamental to portable power sources, powering everything from smartphones to electric vehicles.