具有低温工作性能是超级电容器应对特殊工作环境(高海拔/高纬度)的重要保障, 也有利于其在更多领域中的应用. 本文首先制备了一种可在低温下保持柔韧性和离子传导性能的碱性凝胶电解质, 并利用其制备了一种一体式超级电容器, 其可在零点温度以下(−36°C)仍具有稳定的工作能力.
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This work was financially supported by the Basic Research Project of Science and Technology Innovation Commission of Shenzhen (JCYJ20170817110251498), Guangdong Special Support for Science and Technology Leading Young Scientist (2016TQ03C919), and the National Natural Science Foundation of China (21603094, 21703096, and 11775105).
Conflict of interest The authors declare no conflict of interest.
Yanfang Wang received his BE degree from the Central South University in 2014 and MSc degree from Fudan University in 2017. Now, he is a PhD student at Southern University of Science and Technology. His research interests mainly focus on supercapacitors and lithium-ion batteries.
Zhouguang Lu is currently a professor in the Department of Materials Science and Engineering, Southern University of Science and Technology, China. He received his PhD degree from the City University of Hong Kong in 2009. He is the recipient of Fulbright Fellowship of USA Government in 2008–2009 and the Overseas High-Caliber Personnel (Level B) of Shenzhen Government in 2013. His research mainly covers the design and synthesis of nanostructures and their applications in energy storage and conversion with focus on lithium/sodium-ion and air batteries. He has authored more than 160 peer-review papers with total citations more than 5600 and H-index of 43.
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Wang, Y., Yuan, H., Zhu, Y. et al. An all-in-one supercapacitor working at sub-zero temperatures. Sci. China Mater. (2020). https://doi.org/10.1007/s40843-019-1244-1