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Institute of Refrigeration and Cryogenics Published Research Paper on Energy Storage Materials

February 01, 2020      Author: Institute of Refrigeration and Cryogenics

On January 22, an innovation team ITEWA led by Professor Wang Ruzhu from Institute of Refrigeration and Cryogenics (IRC), SJTU published a research paper titled“Air Humidity Assisted Sorption Thermal Battery Governed by Reaction Wave Model” on Energy Storage Materials. The first author is Zhang Yannan, doctoral student of IRC, and the corresponding author is Professor Wang Ruzhu.

The research is sponsored by the Innovative Research Group Project of National Natural Science Foundation of China51521004. ITEWAInnovative Team for Energy, Water & Airled by Professor Wang has published papers on Joule, iScience, and Research. With focus on frontier and basic scientific problems as well as key technologies in the cross field of energy, water, and air, the team works to make breakthroughs in related fields by offering a total solution that integrates material, equipment and system.



Air humidity assisted sorption thermal battery has attracted increasing interests throughout the world for its strong ability to capture atmospheric moisture and the related heating effects. However, the controllable stable output temperature is still unrealized, which hinders the application potential. Here we discover the phenomenon of “reaction wave” happening in the sorption reactor for the first time and accordingly build a “reaction wave” model which sheds light on the mechanism for receiving stable output and provides design criterion for obtaining stable output. To further increase the storage density of sorption thermal battery, we put forward a design strategy of “dual-reactor” and establish a 1.3 kWh proof-of-concept prototype, which is able to warm up air from 20 °C to 38.1 °C for 5.51 h, and obtain a storage density of 240 kWh/m3 higher than that of previous publications. Therefore, “Reaction wave” model is expected to guide sorbent selection and reactor design.

Paper Link:

Translated by Zhang Wenying Translated by Wang Bingyu