一种锰金属有机框架材料的制备方法及其在水系锌电池中的应用

By controlling the molar ratio of pyromellitic acid to manganese acetate tetrahydrate and the order of addition, a uniform flower-shaped manganese metal-organic framework material was prepared, which solved the problem of uneven morphology of MnMOFs materials and improved the electrochemical performance of aqueous zinc-ion batteries.

CN119875136BActive Publication Date: 2026-07-17YANGZHOU UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANGZHOU UNIV
Filing Date
2025-01-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing MnMOFs materials suffer from problems such as uneven morphology and large size in aqueous zinc-ion batteries, which affect their electrochemical performance.

Method used

By controlling the molar ratio of pyromellitic acid to manganese acetate tetrahydrate to 1:(1.5-3.2), and with the coordination of surfactant and raw material molar ratio, manganese metal-organic framework materials were prepared by using a specific dropwise order to form a uniform flower-shaped morphology.

Benefits of technology

The prepared manganese metal-organic framework material exhibits a high specific surface area, which promotes the insertion and extraction of Zn2+, improves the conductivity, ion conduction performance and structural stability of aqueous zinc-ion batteries, and has excellent specific capacity and longer cycle life.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119875136B_ABST
    Figure CN119875136B_ABST
Patent Text Reader

Abstract

本发明公开了一种锰金属有机框架材料的制备方法,包括步骤:将有机配体均苯三甲酸溶解于溶剂中,形成溶液A,将四水乙酸锰和表面活性剂溶解溶剂中,形成溶液B,所述溶剂为乙醇的水溶液;将所述溶液B缓慢滴加至所述溶液A中搅拌均匀后静置反应,其中均苯三甲酸与四水乙酸锰的摩尔比1:(1.5~3.2);反应结束后清洗产物并烘干得到锰金属有机框架材料。本发明公开的锰金属有机框架材料在水系电池中的应用是将锰金属有机框架材料制成电极浆料涂覆于钛箔表面,干燥后作为水系电池的电极片。本发明制得了均一的花球状形貌的锰金属有机框架材料,有效促进Zn2+在充放电过程中的嵌入与脱出,提升水系锌电池的电化学性能。
Need to check novelty before this filing date? Find Prior Art