Plastic crystal polymer electrolyte material prepared by in-situ polymerization and preparation method therefor

Abstract

The invention relates to a plastic crystal polymer electrolyte material prepared by in-situ polymerization and a preparation method therefor, and belongs to the technical field of an electrolyte material. The plastic crystal polymer electrolyte material prepared by the in-situ polymerization comprises a monomer, an initiator, a cross-linking agent, a lithium salt, and plastic crystals; a mixed solution of the monomer, the initiator, the cross-linking agent, the lithium salt and the plastic crystals is heated to be subjected to the in-situ polymerization to obtain the plastic crystal polymer electrolyte material; the preparation method for the plastic crystal polymer electrolyte material prepared by the in-situ polymerization comprises the steps of mixing and dissolving the monomer, the initiator, the cross-linking agent, the lithium salt and the plastic crystals; and pouring the solution into a polytetrafluoroethylene die, and heating and performing the in-situ polymerization to obtain the plastic crystal polymer electrolyte material. By adoption of a one-step method for synthesis, the preparation process is simple and industrial production can be realized favorably; and in addition, the plastic crystal polymer electrolyte material is high in conductivity at room temperature, high in thermal stability and interface stability, high in mechanical property, excellent in electrochemical performance, and the like.

Description

technical field [0001] The invention belongs to the technical field of electrolyte materials, and in particular relates to an electrolyte material prepared by in-situ polymerization and a plastic crystal polymer electrolyte material and a preparation method thereof. Background technique [0002] At present, since Plant proposed the concept of lead-acid battery in 1859, secondary batteries aiming at high specific energy, long life and safety have successively experienced lead-acid batteries, nickel-cadmium batteries, nickel-metal hydride batteries, lithium-ion batteries, etc. Several main stages such as battery. Theory and practice show that lithium-ion batteries have incomparable advantages over the other three batteries (high energy density, high output voltage (about 3.9V), high output power, no memory effect, wide operating temperature range, and long service life), widely used It is used in high-tech military fields, such as Mars landers, torpedoes, missiles and other m...

AI Technical Summary

Problems solved by technology

However, for the currently commercialized gel polymer electrolytes, there is still a liquid organic electrolyte inside, which has not fundamentally eliminated the potential safety hazards caused by it.