Li-Ion Graphite and Its Uses in Li-Ion Batteries
Graphite is one of the most important materials used in Li-ion batteries. It has a long cycle life and is able to hold a charge for a very long time. Nevertheless, its inherent weaknesses make it a challenging material for use in Li-ion batteries.
During the past 30 years, the energy industry has revolutionized due to the introduction of Li-ion batteries. They are lighter and have a longer lifespan than nickel-cadmium batteries. Their increased energy density allows them to power electric vehicles. However, they are susceptible to severe supply shortages, increasing their cost and limiting their adoption.
Due to their low price, Li-ion graphite is a favorable material for Li-ion anodes. However, it has to be selected carefully to ensure cycling stability of high energy lithium-ion batteries. The optimal choice of graphite can increase the performance of these batteries.
A key determinant of the performance of Li-ion batteries is the flake size of graphite. Studies have shown that control of flake size can improve its performance. In addition, a spherical shape of the graphite particles can improve the packing efficiency.
While most anodes currently use graphite, some are using synthetic graphite. These electrodes are often more chemically pure than those made from natural graphite. Also, they have smaller geometric tortuosity.
Graphite is also used for a variety of aging processes. For example, it is involved in the binarization process. This process involves the absorption of a molten metal catalyst into the pores of a graphite.
