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Related Experiment Video

Updated: May 2, 2026

Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites

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Published on: September 5, 2025

Composite materials for thermal energy storage: enhancing performance through microstructures.

Zhiwei Ge¹, Feng Ye, Yulong Ding

¹State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190 (PR China), Fax: (+86) 010-82544814; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100039 (PR China).

|March 5, 2014

Summary

This summary is machine-generated.

Microstructured composites using lithium carbonate, sodium carbonate, magnesium oxide, and graphite enhance thermal energy storage. These materials improve thermal conductivity and prevent salt leakage, addressing key limitations of molten salt systems.

Keywords:

energy transfer materials science microstructure phase-change materials thermal energy storage

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Area of Science:

Materials Science
Chemical Engineering
Energy Storage

Background:

Molten salt-based thermal energy storage (TES) faces challenges with chemical incompatibility and low thermal conductivity.
Microstructured composites offer a potential solution to overcome these limitations.

Purpose of the Study:

To investigate the microstructural development, chemical compatibility, thermal stability, thermal conductivity, and TES performance of novel composite materials.
To address chemical incompatibility and enhance thermal conductivity in molten salt TES.

Main Methods:

Utilized a eutectic mixture of lithium and sodium carbonates as the molten salt.
Incorporated magnesium oxide as a ceramic supporting material and graphite as a thermal conductivity enhancer.
Analyzed microstructural development, chemical compatibility, thermal stability, thermal conductivity, and TES performance.

Main Results:

The ceramic supporting material effectively prevented salt leakage, resolving chemical incompatibility issues.
Graphite significantly enhanced the thermal conductivity of the composite material.
Microstructural development was linked to the wettability of the salt on the ceramic and graphite components.

Conclusions:

Microstructured composites effectively address chemical incompatibility and low thermal conductivity in molten salt TES.
Magnesium oxide and graphite are crucial components for improving the performance and stability of these composite materials.
Wettability plays a key role in the microstructural evolution and overall effectiveness of the composite TES system.