SEMI-INTERPENETRATING POLYMER NETWORK (SIPN) ELECTROLYTE AND PREPARATION METHOD AND USE THEREOF

The present disclosure relates to the technical field of solid polymer electrolytes, in particular to a semi-interpenetrating polymer network (SIPN) electrolyte and a preparation method and use thereof. The present disclosure provides an SIPN electrolyte, including the following raw materials: poly(vinylidene fluoride-co-hexafluoropropylene), a diallyl compound, a crosslinking agent, a plasticizer, a photoinitiator , and a lithium salt; where the poly(vinylidene fluoride-co-hexafluoropropylene), the diallyl compound, the crosslinking agent, the plasticizer, and the photoinitiator are at a mass ratio of (10-40):(30-70):(1-5):(1-20):(2-10); and the lithium salt and the SIPN electrolyte are at a mass ratio of 1:(1-10). The SIPN electrolyte has an excellent rate performance and a stable cycle performance.