The Theory Of Batteries And Electrochemical Cells

2009 Words9 Pages
In class I was introduced to the concepts of batteries and electrochemical cells. I am really interested in batteries and how they work and what goes into making a battery. I was inspired to this experiment mostly because I want to study electrical engineering in university and I wanted to find out the chemistry behind the production of the electrical energy in batteries. During my reading, I found out that the first battery was actually invented by Italian physicist Count Alessandro Volta and was demonstrated to Napoleon Bonaparte in 1801. Constructed from alternating discs of zinc and copper wit pieces of cardboard soaked in brine between the metals, this was the first battery that produced a reliable steady current of electricity. The reason why this works is because, as I found out, batteries use the process of redox reactions to create voltage. I also found out that the difference in reactivity leads to the voltage that will be produced. Voltage is a measure of the amount of energy which each coulomb of electrons can carry. The more readily a species loses electrons, the bigger the build of potential energy and the higher the voltage. The reason why transition metals are used is because they are very good conductors of electricity and they have seas of electrons so electrons can travel within them fairly easily. There is a table that provides the results of experiments where these various compartments are connected to a hydrogen electrode. It is known as the

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