东北电力大学能源与动力工程学院,吉林 吉林 132012
常渊(2000—),男,博士研究生,1779148835@qq.com
李艳(1988—),女,博士,讲师,liyan@neepu.edu.cn
收稿:2026-03-12,
修回:2026-04-27,
录用:2026-04-28,
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CHANG Yuan, LIU Jiani, LI Haoran, et al. Study on cooling characteristics of solar cells using LiCl-based encapsulated hygroscopic medium[J/OL]. CIESC Journal, 2026.
常渊, 刘佳妮, 李浩然, 等. LiCl基封装型吸湿介质的太阳能电池冷却特性研究[J/OL]. 化工学报, 2026. DOI: 10.11949/0438-1157.20260311.
CHANG Yuan, LIU Jiani, LI Haoran, et al. Study on cooling characteristics of solar cells using LiCl-based encapsulated hygroscopic medium[J/OL]. CIESC Journal, 2026. DOI: 10.11949/0438-1157.20260311.
吸湿介质中的水蒸发过程可降低太阳能电池运行温度,然而盐泄漏导致吸附量下降,进而减小冷却温度且缩短冷却时间。本文将负载吸湿介质LiCl的碳毡封装在超疏水聚四氟乙烯膜中,避免了LiCl的泄漏。在一倍标准光照强度下将太阳能电池的表面温度降低10.7 ℃、背板温度降低11.8 ℃,功率提升10.4 mW,光电转换效率提高7.8%。此外,其在多云和晴天的户外条件下分别实现了5.2 ℃和7.1 ℃的平均温降。
The evaporation of water in hygroscopic media can lower the operating temperature of solar cells. However
salt leakage results in a decrease in adsorption capacity
which in turn reduces the cooling temperature and shortens the cooling duration. In this study
LiCl-loaded carbon felt was encapsulated in a superhydrophobic polytetrafluoroethylene membrane. This configuration prevents the leakage of the hygroscopic medium. Under one-sun illumination
it reduces the surface temperature of the solar cell by 10.7 ℃ and the backsheet temperature by 11.8 °C. This increases the power output by 10.4 mW and improves the photoelectric conversion efficiency by 7.8%. Additionally
under outdoor conditions of cloudy and sunny days
it achieves an average temperature reduction of 5.2 and 7.1 ℃
respectively.
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