Bis(trifluoromethane)sulfonimide is widely used as a highly effective electrolyte additive in lithium-ion batteries due to its exceptional thermal stability and ionic conductivity. It enhances battery performance by improving the stability of the electrolyte at high voltages and temperatures, making it suitable for advanced energy storage systems. Additionally, it is employed in the production of ionic liquids, which are utilized in various applications such as catalysis, electrochemistry, and green chemistry processes. Its strong acidic properties also make it a valuable component in organic synthesis, particularly in reactions requiring a non-nucleophilic superacid. Furthermore, it is used in the development of proton exchange membranes for fuel cells, where it contributes to improved proton conductivity and durability.