A hybrid gel polymer electrolyte with imide groups modified by the coupling agent and its application in electrochromic
- PDF / 1,321,708 Bytes
- 11 Pages / 595.276 x 790.866 pts Page_size
- 55 Downloads / 198 Views
ORIGINAL PAPER: SOL-GEL AND HYBRID MATERIALS FOR ENERGY, ENVIRONMENT AND BUILDING APPLICATIONS
A hybrid gel polymer electrolyte with imide groups modified by the coupling agent and its application in electrochromic devices Desa Zhang1 Jianping Zhou1 Fenglei Shen1 ●
●
1234567890();,:
1234567890();,:
Received: 13 March 2020 / Accepted: 21 August 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Herein, a new class of hybrid gel polyelectrolytes (GPEs) through sol–gel technology has been synthesized and characterized. The reaction mechanism of gel polymer electrolyte is based on the hydrosilylation and sol–gel reactions of poly(propylene glycol) bis(2-aminopropyl ether), pyromellitic dianhydride, glycidoxypropyltrimethoxysilane, and 3isocyanatepropyltriethoxysilane. The gel polymer electrolyte exhibits excellent ion-conductive and thermostability performance. The maximum ionic conductivity value of 3.1 × 10−4 S cm−1 and Li-ion transference numbers (t+) reaching 0.49 at 25 °C are achieved for the gel polymer electrolyte. The thermogravimetric analysis results show that the electrolyte samples are nearly 1% weight loss when the temperature reaches up to 100 °C. The gel polymer electrolytes display a prominent electrochemical stability, which could bear potential up to 10 V. In addition, the prototype electrochromic device using electrolyte sample as the conductive layer presents excellent coloration efficiency of 198.9 cm2 C−1, stable cycle of 125 periods under 5-V high-voltage environment, and stable cycling performance (achieving 300 stable cycles from the voltage of −3.5 to 2.5 V). As a result, the GPEs exhibit an excellent electrochemical performance, which is suitable for electrochromic application and offers a remarkable prospective. Graphical Abstract
Supplementary information The online version of this article (https:// doi.org/10.1007/s10971-020-05402-z) contains supplementary material, which is available to authorized users. * Fenglei Shen [email protected] 1
Department of Inorganic Materials, College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Renai Road, Suzhou 215123 Jiangsu, PR China
Journal of Sol-Gel Science and Technology
Keywords
Ormolytes Hybrid material Electrochemical application Electrochromic performance Cycling performance ●
●
●
●
Highlights A hybrid gel polymer electrolyte with imide groups modified by the coupling agent is successfully synthesized according to sol–gel process. ● The electrolyte possesses excellent electrochemical stability. ● Gel polymer electrolyte possesses excellent thermal stability. ● An archetype electrochromic device with the electrolyte exhibits an excellent coloration efficiency and good cycle performance. ●
1 Introduction At present, the problems of environmental pollution and energy result in the imperious requirements for highefficiency energy storage and low-energy-consuming devices. As a result, scientists attach importance to the preparation of high-efficiency energy devices, l
Data Loading...
