Basic electro-chemical processes such as using redox reactions to create a move of electrons are the premise for the way batteries work. Most batteries or cells are based mostly off of the galvanic cell. Galvanic cells include cathodes and anodes with some form of an electron salt bridge. The cathode is negatively charged, the place discount occurs, and where electrons are gained. The reverse finish of the spectrum on the battery is the anode which is positively charged and where electrons are misplaced. It should be noted that that is when the cell is working.