Graphite fluoride is primarily used as a solid lubricant in high-temperature and high-pressure environments due to its excellent thermal stability and low friction properties. It is commonly applied in aerospace and industrial machinery where conventional lubricants fail. Additionally, it serves as a cathode material in lithium primary batteries, offering high energy density and long shelf life. Its hydrophobic nature also makes it suitable for use in water-repellent coatings and as an additive in polymers to enhance their thermal and chemical resistance.