Gregorio Victor, Baur Christian, Jankowski Piotr, Chang Jin Hyun
Department of Energy Conversion and Storage, Technical University of Denmark, Anker Engelunds vej, Building 301, 2800, Kongens Lyngby, Denmark.
Faculty of Chemistry, Warsaw University of Technology (WUT), Warsaw, 00-661, Poland.
ChemSusChem. 2025 May 5;18(9):e202402494. doi: 10.1002/cssc.202402494. Epub 2025 Jan 28.
Deep eutectic solvents (DESs) are an emerging class of ionic liquids with high tunability and promise for battery applications. In this study, we investigated acetamide-based DESs for Zn batteries, focusing on a synergistic mixture of two known acetamide (Ace)-based DESs: and . By combining these two DESs in various ratios, we aimed to enhance ionic conductivity and optimize electrochemical performance while addressing corrosion concerns. The resulting ternary mixtures exhibit superior ionic mobility, with the highest conductivity observed for , which balances performance and stability. However, increased ionic mobility introduces crystallization challenges, limiting liquid-phase stability. Despite these challenges, the optimized DES mixture demonstrates excellent cycling performance with reduced overpotentials and acceptable corrosion levels, offering a viable pathway for scalable Zn battery applications.
深共熔溶剂（DESs）是一类新兴的离子液体，具有高度的可调节性，在电池应用方面颇具前景。在本研究中，我们研究了用于锌电池的基于乙酰胺的DESs，重点关注两种已知的基于乙酰胺（Ace）的DESs的协同混合物： 和 。通过以各种比例混合这两种DESs，我们旨在提高离子电导率并优化电化学性能，同时解决腐蚀问题。所得的三元混合物表现出优异的离子迁移率， 观察到最高的电导率，其平衡了性能和稳定性。然而，离子迁移率的增加带来了结晶挑战，限制了液相稳定性。尽管存在这些挑战，但优化后的DES混合物表现出优异的循环性能，过电位降低且腐蚀水平可接受，为可扩展的锌电池应用提供了一条可行的途径。
