What is a graphite battery? How can you use a graphite pencil? What if this was NOT a graphite pencil but a standard pencil? Do you need to know your battery chemistry before you use a graphite pencil? This short video series is intended as an introduction to what an alkaline or non-alkaline graphite pencil is, and gives you an idea of how they work. In this video series I use a graphite pencil, but many other examples are available. Graphite is one of the most versatile and easily used solvents in the world as both a filament and a coating. It is one of the most important elements in the chemistry of all chemical reactions, since these reactions have important environmental effects and can be costly. Graphite is used in the manufacture of most all products, from plastics to batteries, which is why it is the subject of my lecture course at MIT. The basic elements necessary for any chemical reaction are: – an acid and a base – oxygen or hydrogen ion – an oxidation state The first three of these elements may be combined in one way or another. The graphite that we usually use is an electrolyte with hydrogen ion and oxygen. This is called graphite plating, and it may be used either alone or in combination with other elements. There are three types of graphite plated: – graphite-doped graphite – highly graphite-doped graphite has only a tiny amount of a particular element used in the synthesis of the graphite. For example, graphite in plated on metal has very little iron-rich graphite. A good example of this is the graphite used in the manufacture of the stainless steel for laptops, tablets or iPhones. – graphite-tipped graphite – the graphite is added with the graphite plating material to the rest of the graphite, creating graphite-filled shells that are very strong but relatively light and are therefore useful for high-performance, small items. A good example is the graphite used for the electrodes of electric motors, including motors and battery packs. The graphite plating material is usually aluminum oxide or magnesium oxide to enhance its strength, but in some cases aluminum may be used instead. If you want more details on the use of graphite in the manufacture of electric motors or other materials, you should look at our lecture course at MIT.
Graphene is a wonder material and is the biggest new substance in the world. While I’m a chemist, I am not interested
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