Non-aqueous electrolyte for dual anion magnesium salt fuel cells

By leveraging the synergistic effect of composite salts and specific additives, the problems of low conductivity, dendrite growth, and poor oxidation stability in non-aqueous electrolytes for magnesium fuel cells have been solved, resulting in an electrolyte with high conductivity, strong dendrite suppression, and long cycle life, suitable for the preparation of non-aqueous electrolytes for magnesium fuel cells.

CN121484146BActive Publication Date: 2026-05-26泉州职业技术大学
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
泉州职业技术大学
Filing Date
2026-01-08
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing non-aqueous electrolytes for magnesium fuel cells suffer from problems such as low conductivity, magnesium ion dendrite growth leading to short circuits, poor oxidation stability, and poor component compatibility, which affect battery safety and cycle life.

Method used

An electrolyte was prepared by using a composite salt system of magnesium trifluoromethanesulfonate and magnesium bis(trifluoromethanesulfonyl)imide, combined with a mixed solvent of propylene carbonate and tetrahydrofuran, and adding magnesium fluoride nanoparticles, 1,3-dioxolane, diethylene glycol dimethyl ether and trimethyl phosphate. The electrolyte was prepared by ultrasonic dispersion and argon protection to form a uniform protective layer and a stable complex, thereby improving ion transport and oxidation stability.

Benefits of technology

It significantly improves the conductivity and oxidation stability of the electrolyte, inhibits dendrite growth, extends battery cycle life, meets the requirements of high power output and safety, and has a simple preparation process that is easy to industrialize.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention relates to the field of electrolyte technology, specifically to a non-aqueous electrolyte for dual-anionic magnesium salt fuel cells, comprising the following components: a composite salt, a mixed solvent, magnesium fluoride (MgF₂) nanoparticles, 1,3-dioxolane (DOL), diethylene glycol dimethyl ether (G2), and trimethyl phosphate (TMP). This invention utilizes a composite salt system composed of magnesium trifluoromethanesulfonate and magnesium bis(trifluoromethanesulfonyl)imide, which significantly enhances the ion transport capacity of the electrolyte through a dual-anionic synergistic effect.
Need to check novelty before this filing date? Find Prior Art

Citation Information

Patent Citations

  • Organic rechargeable magnesium battery electrolyte, preparation method thereof and battery

    CN115295884A

  • Electrolytic solution for magnesium batteries, method for preparing the same, and magnesium batteries

    US20250132390A1