Covalent organic frameworks (COFs) are highly promising electrode materials for next-generation rechargeable metal-ion batteries owing to their robust framework, abundant electrochemically active sites, well-defined and tunable pores and channels for metal ion transfer, and adjustable molecular structures for improving electrochemical performance. Moreover, COFs do not have the problems caused by expensive or toxic elements in conventional inorganic electrode materials or the cycling stability challenges existing in small organic molecules, and thus have great potential as electrode materials in next-generation rechargeable metal-ion batteries. We summarize the electrochemically active sites of these materials for charge storage, and most importantly, we focus on strategies for improving their electrochemical performance, including energy density, rate performance and cycling life by changing their frameworks, pores, active sites, and electronic structures. To fabricate high performance COF electrodes, much more effort is needed to improve their ionic and electronic conductivities, increase their operating voltage, and reveal their mechanisms of energy storage. This review may shed light on developing high performance COF electrode materials for next-generation rechargeable metal-ion batteries.

共价有机骨架（COF）由于其坚固的骨架，丰富的电化学活性位点，用于金属离子转移的明确且可调节的孔和通道以及可改进的可调节分子结构，因此是下一代可充电金属离子电池极有希望的电极材料电化学性能。而且，COF不具有由常规无机电极材料中的昂贵或有毒元素引起的问题，也不存在有机小分子中存在的循环稳定性挑战，因此具有作为下一代可再充电金属离子电池中的电极材料的巨大潜力。我们总结了这些材料用于电荷存储的电化学活性位，最重要的是，我们专注于改善其电化学性能的策略，包括能量密度，通过更改框架，孔，活性部位和电子结构来评估性能和循环寿命。为了制造高性能的COF电极，需要付出更多的努力来改善其离子和电子电导率，增加其工作电压并揭示其能量存储机理。这项审查可能会为开发用于下一代可再充电金属离子电池的高性能COF电极材料提供启示。