Abstract
Electrochemical energy storage devices, such as lithium ion batteries (LIBs), supercapacitors and fuel cells, have been vigorously developed and widely researched in past decades. However, their safety issues have appealed immense attention. Gel electrolytes (GEs), with a special state in-between liquid and solid electrolytes, are considered as the most promising candidates in electrochemical energy storage because of their high safety and stability. This review summarized the recent progresses made in the application of GEs in the safety regulation of the electrochemical energy storage devices. Special attention was paid to the gel polymer electrolytes, the organic low molecule-mass GEs, as well as the fumed silica-based and siloxane-based GEs. Finally, the current challenges and future directions were proposed in terms of the development of GEs.
摘要
近几十年来, 锂离子电池、超级电容器、燃料电池等电化学 储能装置得到了蓬勃发展和广泛研究. 然而, 它们的安全问题引起 了全世界研究人员的极大关注. 因具有更高的安全性和稳定性, 在 液体和固体电解质之间具有特殊状态的凝胶电解质被认为是电化 学能量存储装置中最有希望的候选者. 在这篇综述中, 我们总结了 凝胶电解质在电化学储能装置安全性调控中应用的最新进展, 特 别关注凝胶聚合物电解质和有机小分子量凝胶电解质, 以及气相 二氧化硅基和硅氧烷基凝胶电解质. 最后, 展望了凝胶电解质研究 面临的挑战和未来的发展方向.
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This work was financially supported by the National Natural Science Foundation of China (21773168) and Tianjin Natural Science Foundation (16JCQNJC05000).
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Yu D and Xu J proposed the topic, organized the manuscript outline and wrote the draft of the manuscript. All the coauthors contributed to the discussion and refinement of the manuscript.
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Dan Yu received her Bachelor’s degree from Hainan University, China, in 2017. Currently, she is a graduate student in Tianjin University, China. Her research interest is focused on the GEs and helical polymer.
Xinyue Li received her Bachelor’s degree from Hebei University of Engineering, China, in 2015. Currently, she is a graduate student in Tianjin University, China. Her research interest is focused on the nonlinear optical properties of organic self-assemblies.
Jialiang Xu is a professor of materials chemistry at Nankai University. He obtained his PhD from ICCAS in 2010 under the supervision of Prof. Yuliang Li, and then worked as a Marie-Curie Fellow at Radboud University, Nijmegen, hosted by Prof. Alan Rowan and Prof. Theo Rasing. In 2013, he was awarded the NWO-VENI grant, with which he developed his own research profile at the interface between chemistry and physics to study the coupling between light and (supra) molecular systems. He joined the School of Chemical Engineering and Technology at Tianjin University in 2015, and relocated to the School of Materials Science and Engineering at Nankai University in 2018.
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Yu, D., Li, X. & Xu, J. Safety regulation of gel electrolytes in electrochemical energy storage devices. Sci. China Mater. 62, 1556–1573 (2019). https://doi.org/10.1007/s40843-019-9475-4
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DOI: https://doi.org/10.1007/s40843-019-9475-4