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DOI	10.1039/d0ee04066e
	Stretchable supercapacitor at -30 °c
	Jin X.; Song L.; Yang H.; Dai C.; Xiao Y.; Zhang X.; Han Y.; Bai C.; Lu B.; Liu Q.; Zhao Y.; Zhang J.; Zhang Z.; Qu L.
发表日期	2021
ISSN	17545692
起始页码	3075
结束页码	3085
卷号	14 期号:5
英文摘要	At relatively low temperature (e.g., -30 °C), most flexible supercapacitors that work well at room temperature will lose their stretchability due to the poor cold intolerance of conventional electrolytes and the absence of intrinsically stretchable electrodes. Herein, an anti-freezing and highly stretchable supercapacitor (AF-SSC) was fabricated for the first time by one-step in situ growth of polyaniline onto an organohydrogel polyelectrolyte from cross-linked polyacrylamide networks soaked by ethylene glycol/water/H2SO4. As no extra stretchable substrates (e.g. elastic fiber, polydimethylsiloxane, rubber, etc.) or predefining stretchable structures (e.g. helical, spring, wrinkle, honeycombed structures etc.) are needed in such a design, the prepared AF-SSC shows a high mechanical stretchability of 200% at -30 °C and can be repeatedly stretched for 100 cycles without significant capacitance loss. Besides, an impressive capacitance retention of 73.1% at -30 °C is achieved when the current density increases by 20 times, which is much higher than those of stretchable supercapacitors based on pseudocapacitive materials that operate at room temperature. Furthermore, the device shows an ultralong lifespan with 91.7% capacitance retention after 100?000 cycles at -30 °C, outperforming all stretchable supercapacitors reported previously. With other merits of high compressibility, strong adhesion, good processability and excellent anti-drying ability, the current device is an ideal power source to drive multi-functional electronic components in real-life scenarios. © 2021 The Royal Society of Chemistry.
英文关键词	Capacitance; Ethylene; Ethylene glycol; Polyaniline; Polyelectrolytes; Silicones; Temperature; Capacitance retention; Electronic component; In-situ growth; Low temperatures; Multi-functional; Processability; Pseudo-capacitive materials; Stretchable electrodes; Supercapacitor; electrolyte; equipment; low temperature; performance assessment; polymer; temperature effect
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190667
作者单位	Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science, Ministry of Education of China, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China; School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, China; Laboratory of Rubber-Plastics, Ministry of Education/Shandong Provincial Key Laboratory of Rubber-Plastics, Qingdao University of Science and Technology, Qingdao City, 266042, China; Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing, 100084, China
推荐引用方式 GB/T 7714	Jin X.,Song L.,Yang H.,et al. Stretchable supercapacitor at -30 °c[J],2021,14(5).
APA	Jin X..,Song L..,Yang H..,Dai C..,Xiao Y..,...&Qu L..(2021).Stretchable supercapacitor at -30 °c.Energy & Environmental Science,14(5).
MLA	Jin X.,et al."Stretchable supercapacitor at -30 °c".Energy & Environmental Science 14.5(2021).