Click Chemistry in Lithium‐Metal Batteries

Abstract

Lithium‐metal batteries (LMBs) are considered the “holy grail” of the next‐generation energy storage systems, and solid‐state electrolytes (SSEs) are a kind of critical component assembled in LMBs. However, as one of the most important branches of SSEs, polymer‐based electrolytes (PEs) possess several native drawbacks including insufficient ionic conductivity and so on. Click chemistry is a simple, efficient, regioselective, and stereoselective synthesis method, which can be used not only for preparing PEs with outstanding physical and chemical performances, but also for optimizing the stability of solid electrolyte interphase (SEI) layer and elevate the cycling properties of LMBs effectively. Here it is primarily focused on evaluating the merits of click chemistry, summarizing its existing challenges and outlining its increasing role for the designing and fabrication of advanced PEs. The fundamental requirements for reconstructing artificial SEI layer through click chemistry are also summarized, with the aim to offer a thorough comprehension and provide a strategic guidance for exploring the potentials of click chemistry in the field of LMBs.

Amine-Acrylate Michael Addition: A Versatile Platform for Fabrication of Polymer Electrolytes with Varied Cross-Linked Networks

“…The high selectivity and mild reaction conditions of click chemistry have simplified the tedious process of organic synthesis. Among them, the Michael addition reaction becomes the typical click chemistry reaction, and it has a much longer history of development than most click chemistry reactions. − Especially, thiol-Michael addition has been widely used in the preparation of cross-linked polymer electrolytes. ,− Thiol-Michael addition has been able to be carried out in a solvent-free and moderate-temperature environment, making it an efficient click chemistry method, whereas the reaction rate and yield are mainly dependent on the strength and concentration of the base catalyst and the p K a of thiol.…”