Binders, which maintain the structural integrity of electrodes, are critical components of lithium-based rechargeable batteries (LBRBs) that significantly affect battery performances, despite accounting for 2 to 5 wt% (up to 5 wt% but usually 2 wt%) of the entire electrode. Traditional polyvinylidene fluoride (PVDF) binders that interact with electrode components via weak van der Waals forces are effective in conventional LBRB systems (graphite/LiCoO₂, etc.). However, its stable fluorinated structures limit the potential for further functionalization and inhibit strong interactions towards external substances. Consequently, they are unsuitable for next-generation battery systems with high energy density. There is thus a need for new functional binders with facile features compatible with novel electrode materials and chemistries. Here in this review we consider the strategies for rationally designing these functional binders. On the basis of fundamental understandings of the issues for high-energy electrode materials, we have summarized seven desired functions that binders should possess depending on the target electrodes where the binders will be applied. Then a variety of leading-edge functional binders are reviewed to show how their chemical structures realize these above functions and how the employment of these binders affects the cell's electrochemical performances. Finally the corresponding design strategies are therefore proposed, and future research opportunities as well as challenges relating to LBRB binders are outlined.

粘合剂保持电极的结构完整性，是锂基可充电电池（LBRB）的重要组成部分，尽管占电池的2至5 wt％（最多5 wt％，但通常为2 wt％），但它们仍会严重影响电池性能。整个电极。通过弱范德华力与电极组件相互作用的传统聚偏二氟乙烯（PVDF）粘合剂在常规LBRB系统（石墨/ LiCoO ₂等）。但是，其稳定的氟化结构限制了进一步功能化的可能性，并抑制了与外部物质的强烈相互作用。因此，它们不适用于具有高能量密度的下一代电池系统。因此，需要具有与新颖的电极材料和化学物质相容的易用特征的新型功能性粘合剂。在本文中，我们考虑了合理设计这些功能结合剂的策略。基于对高能电极材料问题的基本理解，我们总结了粘结剂应具有的七个所需功能，具体取决于将要施加粘结剂的目标电极。然后审查了各种先进的功能性粘合剂，以显示它们的化学结构如何实现上述功能，以及这些粘合剂的使用如何影响电池的电化学性能。最后，提出了相应的设计策略，并概述了未来的研究机会以及与LBRB粘合剂有关的挑战。