Used as a highly stable anion source in lithium-ion battery electrolytes, enhancing conductivity and thermal stability. Commonly employed in advanced electrochemical devices due to its strong electron-withdrawing properties and resistance to decomposition. Serves as a catalyst or reagent in organic synthesis, particularly in acid-catalyzed reactions where high acidity and low nucleophilicity are required. Also utilized in the preparation of ionic liquids for green chemistry applications, offering low volatility and high chemical inertness.