Used as an electrolyte additive in lithium-ion batteries to enhance performance and stability. It improves the battery's thermal stability and cycling efficiency, making it suitable for high-temperature applications. Also employed in electrochemical devices and supercapacitors due to its high ionic conductivity and low volatility. In organic synthesis, it serves as a phase-transfer catalyst, facilitating reactions between compounds in different phases. Additionally, it is utilized in the production of specialty chemicals and advanced materials where precise ionic control is required.