Used as a key electrolyte additive in lithium-ion batteries to improve cycle life and thermal stability. It helps form a stable solid electrolyte interphase (SEI) layer on the anode, enhancing battery performance, especially at high voltages and elevated temperatures. Commonly applied in batteries for electric vehicles and portable electronics due to its ability to suppress electrolyte decomposition and reduce gas generation during charge-discharge cycles. Additionally, it is used as a monomer in the synthesis of polymers with special properties, such as heat resistance and chemical resistance, suitable for applications in the electrical and electronics industries.