Application of struvite and / or struvite-based composite material in thermochemical energy storage

By using struvite and/or its matrix composite materials as thermochemical energy storage materials, the problems of poor circulation stability and low energy storage density of existing materials are solved, and efficient medium and low temperature thermal energy storage and regulation management are achieved.

CN119662218APending Publication Date: 2025-03-21TONGJI UNIV
5 Cites 0 Cited by

Patent Information

Application Number
CN202311715115.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-12-13
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

The existing medium and low temperature thermochemical energy storage materials have problems such as poor circulation stability, easy dehydration, corrosiveness and low energy storage density, which limits their widespread use in practical applications.

Method used

Strulotite and/or strulot-based composite materials are used as thermochemical energy storage materials, mineral synthesis is carried out through chemical reagents such as magnesium, potassium, phosphorus, sodium, ammonia salts and alkalis, or prepared by precipitation method and hydrated magnesium phosphate cement to form thermochemical energy storage materials with high energy storage density and good stability.

Benefits of technology

It realizes efficient storage and regulation management of medium and low temperature thermal energy, has the advantages of high heat storage density, non-degradation, non-corrosiveness, simple and diverse production methods, and is suitable for heat storage management needs in different fields.

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

Abstract

The invention relates to application of a struvite and / or struvite-based composite material in thermochemical energy storage, the struvite and / or struvite-based composite material is used as a thermochemical energy storage material, and the thermochemical energy storage material comprises amino group, potassium group, sodium group struvite and / or struvite-based composite material and the like. The preparation method comprises the following steps: synthesizing and preparing struvite minerals by adopting a chemical reagent; precipitating phosphorus, magnesium and other elements in the wastewater / seawater by adopting a precipitation method to recover struvite; hydrating magnesium phosphate cement to obtain a struvite hydration product; the struvite is compounded with other functional matrixes or fillers to prepare the composite thermochemical energy storage material. Compared with the common defects of easy deliquescence, corrosivity, low heat storage density and the like of the traditional hydrated metal salt thermochemical energy storage material, the thermochemical energy storage material has the advantages of higher heat storage density, moderate working temperature, no deliquescence, no corrosivity, simple and diversified manufacturing modes and the like, and can meet the energy storage management requirements in different fields.
Need to check novelty before this filing date? Find Prior Art