Design optimization of a latent heat storage using sodium acetate trihydrate

Wang, Gang; Liao, Zhirong; Xu, Chao; Englmair, Gerald; Kong, Weiqiang; Fan, Jianhua; Wei, Gaosheng; Furbo, Simon

doi:10.1016/j.est.2022.104798

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…Certain organic PCMs, such as paraffin wax, polyethylene glycol, and sugar alcohols, have limited practical applications because of their flammability, low energy storage density, and high cost. In contrast, inorganic PCMs, particularly hydrated salts, have attracted much attention for low- and medium-temperature thermal energy storage owing to their advantages such as high heat-storage density, stable phase-change temperature, and nonflammability. − Among these, sodium acetate trihydrate (SAT, CH 3 COONa·3H 2 O) has the advantages of high latent heat of phase change, high energy storage density, and suitable phase-change temperature, making it a promising PCM. , However, supercooling, phase separation phenomena, low thermal conductivity, poor flexibility, and irrecoverable fractures of SAT have severely restricted its application in practical thermal energy management. − …”

Section: Introductionmentioning

confidence: 99%

Composite Material with Excellent Thermal Management and Self-Healing Performance for Battery Temperature Control and Human Thermal Therapy

Li,

Wu,

Tang

et al. 2024

ACS Appl. Polym. Mater.

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Inorganic phase-change materials are promising materials for realizing personal thermal therapy and thermal management of electronic devices owing to their advantages of high energy storage density and stable phase-change temperature. However, the poor flexibility and irrecoverable fracturing of inorganic phase-change materials are long-standing bottlenecks in achieving efficient thermal management. This study proposed a method for preparing self-healing and flexible sodium acetate trihydrate (SAT)/expanded graphite (EG)/borax/sodium carboxymethyl cellulose (CMC) (labeled as SEBC)-based polyacrylamide (PAM)/chitosan (CS)/SEBC hydrogel composites with a self-healing ability and a certain degree of flexibility by constructing PAM/CS flexible dual-networked hydrogels for thermal management. The cross-linked dual network was formed by PAM and CS-wrapped SEBC to prepare self-healing PAM/CS/SEBC hydrogel composites. A 50 wt % content of PAM/CS enabled the composite to exhibit excellent flexibility and 87.9% self-healing efficiency. The composites that were damaged and self-healed showed thermal/conductive properties and thermal stabilities close to those of the original composites, owing to their excellent self-healing ability. Furthermore, energy devices based on flexible PAM/CS/SEBC hydrogel composites were developed to realize personal thermal therapy and efficient battery thermal management. Overall, this study provides a promising route for the fabrication of flexible and self-healing inorganic phase-change materials for thermal management.

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