Bis(trifluoromethanesulfonyl)methane is primarily used as a key component in the formulation of electrolytes for lithium-ion batteries and supercapacitors. Its high thermal stability and excellent ionic conductivity make it suitable for enhancing the performance and safety of batteries, especially in high-temperature environments. Additionally, it is employed in the field of organic synthesis as a strong acid catalyst, facilitating various chemical reactions, including polymerization, esterification, and fluorination reactions. Its unique properties also make it valuable in the development of advanced materials and coatings, where its chemical resistance and durability are highly beneficial.