Covalent Organic Framework Based Solid State Electrolytes

The development of high-performance solid-state electrolytes is a key milestone in advancing the safety, performance, and energy density of energy storage technologies, particularly in lithium-ion batteries. Covalent Organic Frameworks (COFs), with their unique structural tunability, high thermal and chemical stability, and inherent porosity, have emerged as a promising candidate for solid-state electrolytes. Our work explores cutting-edge research in the design, synthesis, and characterization of COF-based solid-state electrolytes and their transformative potential in the realm of energy storage.<br/>We will discuss the rational design of COFs tailored for solid-state electrolyte applications, focusing on factors such as framework stability, and ion conductivity. By judiciously modifying COF structures, we can enhance their ion transport properties, leading to improved ionic conductivity and electrochemical stability. These studies shed light on the mechanisms of ion transport, electrochemical stability, and long-term performance of COF-based electrolytes.<br/>In conclusion, this research represents a significant advancement in COF-based solid-state electrolyte development, offering solutions to the pressing challenges in energy storage technology. We anticipate that the insights and breakthroughs presented here will pave the way for the practical implementation of COF-based solid-state electrolytes, fostering discussions and collaborations within the materials science community, and catalyzing the transformation of energy storage technologies toward a safer and more efficient future.<br/>References:<br/>1. <b>Chaoqun Niu</b>, Wenjia Luo, Chenmin Dai, Chengbing Yu, Yuxi Xu*. High voltage tolerant covalent organic framework electrolyte with holistically oriented channels for solid state lithium metal batteries with nickel rich cathodes. <i>Angew Chem Int Ed</i>, 2021, 60(47): 24915-24923.<br/>2. <b>Chaoqun Niu</b>, Yuxi Xu*. Two-dimensional polymers: Preparation, assembly and high-efficiency electrochemical applications. <i>Acta Polymerica Sinica</i>, 2021, 52(6): 549-564.<br/>3. Kaige Zhang, <b>Chaoqun Niu</b>, Chengbing Yu, Li Zhang, Yuxi Xu*. Highly crystalline vinylene-linked covalent organic frameworks enhanced solid polycarbonate electrolytes for dendrite-free solid lithium metal batteries. <i>Nano Research</i>, 2022, 15(9): 8083-8090.<br/>4. Zhen Hou, Shuixin Xia, <b>Chaoqun Niu</b>, Yuepeng Pang, Hao Sun, Zhiqi Li, Yuxi Xu*, Shiyou Zheng*. Tailoring the interaction of covalent organic framework with the polyether matrix toward high performance solid state lithium metal batteries. <i>Carbon Energy</i>, 2022, 4(4): 506-516.