Let’s start from the very beginning. In 1,790 years Alexander Volta built the first cell plating, which has been called stosem Volt. It consisted of coins made of two different metals interleaved alternately electrolyte paper pad (in this case, salt water). As a reminder: cell plating is a chemical link, which are a source of electricity by chemical reactions that take place between the electrode and electrolyte. Two electrodes submerged in elektrolicie (half cells) make up the cell plating. The difference between electrode potentials elektromotoryczna the force of the cell (SEM).