Sun Yukun, Pan Ming, Wang Yuanhao, Hu Anyi, Zhou Qinnan, Zhang Duo, Zhang Shuxin, Zhao Yazhen, Wang Yaru, Chen Shaopeng, Zhou Miao, Chen Yan, Yang Jun, Wang nJiulin, NuLi Yanna
School of Chemistry and Chemical Engineering, Shanghai Electrochemical Energy Devices Research Center, Shanghai Jiao Tong University, 200240, Shanghai, China.
Angew Chem Int Ed Engl. 2024 Aug 26;63(35):e202406585. doi: 10.1002/anie.202406585. Epub 2024 Jul 25.
Polymer electrolytes play a crucial role in advancing rechargeable magnesium batteries (RMBs) owing to their exceptional characteristics, including high flexibility, superior interface compatibility, broad electrochemical stability window, and enhanced safety features. Despite these advantages, research in this domain remains nascent, plagued by single preparation approaches and challenges associated with the compatibility between polymer electrolytes and Mg metal anode. In this study, we present a novel synthesis strategy to fabricate a glycerol α,α'-diallyl ether-3,6-dioxa-1,8-octanedithiol-based composite gel polymer electrolyte supported by glass fiber substrate (GDT@GF CGPE) through anion modification and thiol-ene click chemistry polymerization. The developed route exhibits novelty and high efficiency, leading to the production of GDT@GF CGPEs featuring exceptional mechanical properties, heightened ionic conductivity, elevated Mg transference number, and commendable compatibility with Mg anode. The assembled modified MoS||GDT@GF||Mg cells exhibit outstanding performance across a wide temperature range and address critical safety concerns, showcasing the potential for applications under extreme conditions. Our innovative preparation strategy offers a promising avenue for the advancement of polymer electrolytes in high-performance rechargeable magnesium batteries, while also opens up possibilities for future large-scale applications and the development of flexible electronic devices.
聚合物电解质因其卓越的特性,包括高柔韧性、优异的界面兼容性、宽电化学稳定性窗口和增强的安全特性,在可充电镁电池(RMBs)的发展中发挥着关键作用。尽管具有这些优势,但该领域的研究仍处于起步阶段,受到单一制备方法以及聚合物电解质与镁金属阳极之间兼容性相关挑战的困扰。在本研究中,我们提出了一种新颖的合成策略,通过阴离子改性和硫醇-烯点击化学聚合制备一种由玻璃纤维基材支撑的甘油α,α'-二烯丙基醚-3,6-二氧杂-1,8-辛二硫醇基复合凝胶聚合物电解质(GDT@GF CGPE)。所开发的路线具有新颖性和高效性,能够制备出具有优异机械性能、更高离子电导率、更高镁迁移数以及与镁阳极良好兼容性的GDT@GF CGPE。组装的改性MoS||GDT@GF||Mg电池在宽温度范围内表现出出色的性能,并解决了关键的安全问题,展示了在极端条件下的应用潜力。我们的创新制备策略为高性能可充电镁电池中聚合物电解质的发展提供了一条有前景的途径,同时也为未来的大规模应用以及柔性电子器件的开发开辟了可能性。