An electrochemical battery and a method for preparing a hybrid electrolyte additive for the same

The hybrid electrolyte additive of covalently bonded MOF and ZIF addresses the challenges of conventional additives by enhancing ion conductivity and trapping harmful molecules, leading to improved battery performance and safety.

WO2025062409A1 Publication Date: 2025-03-27GODI INDIA PVT LTD
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Patent Information

Application Number
PCT/IN2024/050459
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-09-22
Filing Date
2024-05-01
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

Conventional electrolyte additives in electrochemical batteries face challenges such as unstable solid electrolyte interface (SEI), uncontrollable dendrite growth, and safety hazards due to toxicity and flammability, leading to reduced battery life and performance.

Method used

A hybrid electrolyte additive composed of covalently bonded Metal Organic Framework (MOF) and Zeolite Imidazolium Framework (ZIF) with specific functional groups, which enhances ion conductivity, stability, and physical trapping of harmful molecules, thereby improving battery performance and safety.

Benefits of technology

The hybrid additive improves ion conductivity, mitigates dendrite formation, and physically traps harmful molecules, resulting in enhanced electrochemical performance, increased cycle stability, and improved safety and longevity of electrochemical batteries.

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Abstract

The present invention relates to an electrochemical battery comprising a positive electrode, a negative electrode, and an electrolyte The electrolyte comprises a Metal Organic framework (MOF) with at least one hydroxyl group and at least one amino group and a Zeolite Imidazolium Framework (ZIF) with at least one aldehyde group, wherein the MOF and ZIF are covalently bonded to form an electrolyte additive (220) for the said electrochemical battery.
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