Widely used as a precursor for superacid catalysts in organic synthesis, enabling efficient alkylation and acylation reactions. Employed in the preparation of ionic liquids, particularly those requiring high thermal and electrochemical stability. Serves as a key component in lithium battery electrolytes, enhancing conductivity and improving cycle life due to its excellent anion stability. Also utilized in fuel cell membranes to boost proton conductivity under low-humidity conditions. Its strong electron-withdrawing nature makes it valuable in designing functional materials for electrochemical devices.